# TETRA TECH INC > Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero. ## Record | Field | Value | | --- | --- | | Representation | alpha-profile-markdown-v4 | | Protocol | Alpha Governance Facts Protocol 0.1 | | Schema | alpha.governance.entity.public.v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | Governance record representation | alpha-governance-record-v2 | | Canonical entity | alpha:company:104381dd-0d87-431f-b4a1-64469fd08ce1 | | Entity type | Company | | Canonical URL | https://registry.alpha.ac/companies/tetra-tech-inc | | Publication | PUBLISHED | | Verification | source_reported | | Verification schema | alpha-verification-states-v1 | | Ownership | unclaimed | | Published claims | 34 | | Claims under review | 2 | | Evidence records | 14 | | Conflicts | 0 | | Conflicts in internal review | 0 | | Observed | 2026-10-17T04:45:37.386881+00:00 | | Last reviewed | 2026-10-17T04:45:37.386881+00:00 | ## Identity - Legal name: TETRA TECH INC - Display name: TETRA TECH INC ## Alpha Governance Record | Field | Value | | --- | --- | | Governance Record schema | alpha-governance-record-v2 | | Ontology | alpha-governance-ontology-v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | As of | 2026-10-17T09:18:36.532126+00:00 | | Completeness | 0.409 | | Record Quality | 0.817 | | Directors | 6 | | Committees | 7 | | Governance events | 19 | | Entity class | public_company | ## Section coverage | Section | State | | --- | --- | | identity | PUBLISHED | | corporate_structure | NOT_REVIEWED | | board | PUBLISHED | | committees | PUBLISHED | | leadership | PUBLISHED | | ownership | NOT_REVIEWED | | financials | NOT_REVIEWED | | capital_structure | PUBLISHED | | compensation | NOT_REVIEWED | | governance | NOT_REVIEWED | | shareholder_governance | NOT_REVIEWED | | audit | NOT_REVIEWED | | legal | NOT_REVIEWED | | risk | NOT_REVIEWED | | cyber | NOT_REVIEWED | | ai_governance | NOT_REVIEWED | | agent_governance | RESTRICTED | | markets_external | NOT_REVIEWED | | events | PUBLISHED | | relationships | PUBLISHED | | assessments | PUBLISHED | | evidence | PUBLISHED | ## Board - Dan L. Batrack: Director. Status: current. Independent: false. Since: 2005-01-01. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:7 - Gary R. Birkenbeuel: Director. Status: current. Independent: true. Since: 2018-01-01. Committees: Audit (chair); Audit · Chair; Nominating and Governance (member); Nominating and Governance (member). claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:8 - Jeffrey R. Feeler: Director. Status: current. Independent: true. Since: 2025-01-01. Committees: Audit (member); Audit; Compensation (member); Compensation (member). claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:9 - M. Susan Hardwick: Director. Status: current. Independent: true. Since: 2025-01-01. Committees: Audit (member); Audit; Nominating and Governance (member); Nominating and Governance (member). claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:10 - Prashant Gandhi: Director. Status: current. Independent: true. Since: 2022-01-01. Committees: Compensation (member); Compensation; Nominating and Governance · Chair (member); Nominating and Governance (chair). claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:11 - Kirsten M. Volpi: Director (committee appointment). Status: unknown. Independent: NOT_PUBLISHED. Since: NOT_PUBLISHED. Committees: Audit (member); Compensation (chair). claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_record:23 ## Committees - Audit (audit). Chair: Gary R. Birkenbeuel. Members: Gary R. Birkenbeuel (chair, current); Jeffrey R. Feeler (member, current); Kirsten M. Volpi (member, current); M. Susan Hardwick (member, current). committee_id=alpha:committee:tetra-tech-inc:audit - Audit · Chair; Nominating and Governance (audit). Chair: NOT_PUBLISHED. Members: Gary R. Birkenbeuel (member, current). committee_id=alpha:committee:tetra-tech-inc:audit-chair-nominating-and-governance - Audit; Compensation (audit). Chair: NOT_PUBLISHED. Members: Jeffrey R. Feeler (member, current). committee_id=alpha:committee:tetra-tech-inc:audit-compensation - Audit; Nominating and Governance (audit). Chair: NOT_PUBLISHED. Members: M. Susan Hardwick (member, current). committee_id=alpha:committee:tetra-tech-inc:audit-nominating-and-governance - Compensation (compensation). Chair: Kirsten M. Volpi. Members: Kirsten M. Volpi (chair, current); Jeffrey R. Feeler (member, current); Prashant Gandhi (member, current). committee_id=alpha:committee:tetra-tech-inc:compensation - Compensation; Nominating and Governance · Chair (compensation). Chair: NOT_PUBLISHED. Members: Prashant Gandhi (member, current). committee_id=alpha:committee:tetra-tech-inc:compensation-nominating-and-governance-chair - Nominating and Governance (nominating_governance). Chair: Prashant Gandhi. Members: Prashant Gandhi (chair, current); Gary R. Birkenbeuel (member, current); M. Susan Hardwick (member, current). committee_id=alpha:committee:tetra-tech-inc:nominating-and-governance ## Executive leadership - Brian N. Carter: Senior Vice President, Corporate Controller and Chief Accounting Officer [CAO]. Status: current. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:14 - Dan L. Batrack: Chairman and Chief Executive Officer [CEO]. Status: current. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:16 - Leslie Shoemaker: Executive Vice President, Chief Innovation and Sustainability Officer. Status: current. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:17 - Preston Hopson: Executive Vice President, Chief Legal and Human Capital Officer and Secretary. Status: current. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:19 - Roger R. Argus: President [PRESIDENT]. Status: current. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:21 - Steven M. Burdick: Executive Vice President, Chief Financial Officer [CFO]. Status: current. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:22 - Bernard Teufele: President of Environment & Geotech Division [PRESIDENT]. Status: unknown. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:12 - Brendan J. O'Rourke: Senior Vice President of Enterprise Risk Management. Status: unknown. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:13 - Craig L. Christensen: Senior VP & Chief Information Officer [CIO]. Status: unknown. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:15 - Olivier H. Jeannot: President of Federal Information Technology Division [PRESIDENT]. Status: unknown. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:18 - Richard A. Lemmon: Senior Vice President of Corporate Administration. Status: unknown. claim_id=alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:20 ## Governance events - EXECUTIVE_APPOINTED: Brian N. Carter executive of TETRA TECH INC, effective 2025-11-20. Effective: 2025-11-20. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:z7z5jz4aej7n - CEO_CHANGED: Dan L. Batrack executive of TETRA TECH INC, effective 2025-11-20. Effective: 2025-11-20. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:1swb63echf4b0 - EXECUTIVE_APPOINTED: Leslie Shoemaker executive of TETRA TECH INC, effective 2025-11-20. Effective: 2025-11-20. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:1vt7j6zyogfav - EXECUTIVE_APPOINTED: Preston Hopson executive of TETRA TECH INC, effective 2025-11-20. Effective: 2025-11-20. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:1snq3jb1r1gtuj - EXECUTIVE_APPOINTED: Roger R. Argus executive of TETRA TECH INC, effective 2025-11-20. Effective: 2025-11-20. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:owvgp71tmfxsv - CFO_CHANGED: Steven M. Burdick executive of TETRA TECH INC, effective 2025-11-20. Effective: 2025-11-20. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:4jeouyo6yrrk - DIRECTOR_APPOINTED: Jeffrey R. Feeler seat on TETRA TECH INC, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:1e83p2j1kh5sxj - DIRECTOR_APPOINTED: M. Susan Hardwick seat on TETRA TECH INC, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:ji161xl3d1ub - COMMITTEE_CREATED: Audit; Compensation committee of TETRA TECH INC, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:w1nftrgpe9wf - COMMITTEE_MEMBER_ADDED: Jeffrey R. Feeler member of Audit; Compensation, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:ayp6t366qjft - COMMITTEE_CREATED: Audit; Nominating and Governance committee of TETRA TECH INC, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:6mtbg1voofnn - COMMITTEE_MEMBER_ADDED: M. Susan Hardwick member of Audit; Nominating and Governance, effective 2025-01-01. Effective: 2025-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:14izgkkmjg1vq - DIRECTOR_APPOINTED: Prashant Gandhi seat on TETRA TECH INC, effective 2022-01-01. Effective: 2022-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:14rrn2ppzw6ap - COMMITTEE_CREATED: Compensation; Nominating and Governance · Chair committee of TETRA TECH INC, effective 2022-01-01. Effective: 2022-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:1smc82z1940rt9 - COMMITTEE_MEMBER_ADDED: Prashant Gandhi member of Compensation; Nominating and Governance · Chair, effective 2022-01-01. Effective: 2022-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:12axwbdcp1i5d - DIRECTOR_APPOINTED: Gary R. Birkenbeuel seat on TETRA TECH INC, effective 2018-01-01. Effective: 2018-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:nblp8c1ikib0o - COMMITTEE_CREATED: Audit · Chair; Nominating and Governance committee of TETRA TECH INC, effective 2018-01-01. Effective: 2018-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:lt7kru1yjlw78 - COMMITTEE_MEMBER_ADDED: Gary R. Birkenbeuel member of Audit · Chair; Nominating and Governance, effective 2018-01-01. Effective: 2018-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:nalf6319cpsrp - DIRECTOR_APPOINTED: Dan L. Batrack seat on TETRA TECH INC, effective 2005-01-01. Effective: 2005-01-01. Detected: 2026-10-17T04:45:37.386881+00:00. event_id=alpha:event:transition:1n5kqv1ylonwr ## Scoped resources - `alpha://company/tetra-tech-inc` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record - `alpha://company/tetra-tech-inc/identity` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=identity - `alpha://company/tetra-tech-inc/corporate-structure` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=corporate-structure - `alpha://company/tetra-tech-inc/board` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=board - `alpha://company/tetra-tech-inc/committees` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=committees - `alpha://company/tetra-tech-inc/leadership` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=leadership - `alpha://company/tetra-tech-inc/ownership` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=ownership - `alpha://company/tetra-tech-inc/financials` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=financials - `alpha://company/tetra-tech-inc/capital-structure` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=capital-structure - `alpha://company/tetra-tech-inc/compensation` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=compensation - `alpha://company/tetra-tech-inc/governance` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=governance - `alpha://company/tetra-tech-inc/shareholder-governance` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=shareholder-governance - `alpha://company/tetra-tech-inc/audit` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=audit - `alpha://company/tetra-tech-inc/legal` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=legal - `alpha://company/tetra-tech-inc/risk` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=risk - `alpha://company/tetra-tech-inc/cyber` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=cyber - `alpha://company/tetra-tech-inc/ai-governance` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=ai-governance - `alpha://company/tetra-tech-inc/agents` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=agents - `alpha://company/tetra-tech-inc/ecosystem` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=ecosystem - `alpha://company/tetra-tech-inc/events` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=events - `alpha://company/tetra-tech-inc/relationships` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=relationships - `alpha://company/tetra-tech-inc/assessments` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=assessments - `alpha://company/tetra-tech-inc/evidence` (contract): https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record§ion=evidence ## Role modules - NOT_ASSERTED ## Attention - NO_RECORDS_FOUND ## Committee data - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:24: `{"kind":"committee_appointment","original_name":"Audit","category":"audit","role":"chair","person":{"alpha_id":"alpha:person:gary-r-birkenbeuel","name":"Gary R. Birkenbeuel"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:25: `{"kind":"committee_appointment","original_name":"Audit","category":"audit","role":"member","person":{"alpha_id":"alpha:person:jeffrey-r-feeler","name":"Jeffrey R. Feeler"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:26: `{"kind":"committee_appointment","original_name":"Audit","category":"audit","role":"member","person":{"alpha_id":"alpha:person:kirsten-m-volpi","name":"Kirsten M. Volpi"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:27: `{"kind":"committee_appointment","original_name":"Audit","category":"audit","role":"member","person":{"alpha_id":"alpha:person:m-susan-hardwick","name":"M. Susan Hardwick"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:29: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"chair","person":{"alpha_id":"alpha:person:kirsten-m-volpi","name":"Kirsten M. Volpi"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:30: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"member","person":{"alpha_id":"alpha:person:jeffrey-r-feeler","name":"Jeffrey R. Feeler"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:31: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"member","person":{"alpha_id":"alpha:person:prashant-gandhi","name":"Prashant Gandhi"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:33: `{"kind":"committee_appointment","original_name":"Nominating and Governance","category":"nominating_governance","role":"chair","person":{"alpha_id":"alpha:person:prashant-gandhi","name":"Prashant Gandhi"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:34: `{"kind":"committee_appointment","original_name":"Nominating and Governance","category":"nominating_governance","role":"member","person":{"alpha_id":"alpha:person:gary-r-birkenbeuel","name":"Gary R. Birkenbeuel"},"source_id":"board_seats"}` - Claim alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:35: `{"kind":"committee_appointment","original_name":"Nominating and Governance","category":"nominating_governance","role":"member","person":{"alpha_id":"alpha:person:m-susan-hardwick","name":"M. Susan Hardwick"},"source_id":"board_seats"}` ## Leadership - Dan L. Batrack: Director. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:7. Valid from: 2005-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c20ea5b148b2eec808fd519d53e112482b53a4136bf1b3cec411a03841f47d50. - Gary R. Birkenbeuel: Director, Audit · Chair; Nominating and Governance. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:8. Valid from: 2018-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c20ea5b148b2eec808fd519d53e112482b53a4136bf1b3cec411a03841f47d50. - Jeffrey R. Feeler: Director, Audit; Compensation. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:9. Valid from: 2025-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c20ea5b148b2eec808fd519d53e112482b53a4136bf1b3cec411a03841f47d50. - M. Susan Hardwick: Director, Audit; Nominating and Governance. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:10. Valid from: 2025-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c20ea5b148b2eec808fd519d53e112482b53a4136bf1b3cec411a03841f47d50. - Prashant Gandhi: Director, Compensation; Nominating and Governance · Chair. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:11. Valid from: 2022-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c20ea5b148b2eec808fd519d53e112482b53a4136bf1b3cec411a03841f47d50. - Bernard Teufele: President of Environment & Geotech Division. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:12. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:3eab64b589a1569710bc61cde694ec5232216ac0ea5d4c993f69d50f31aefd67. - Brendan J. O'Rourke: Senior Vice President of Enterprise Risk Management. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:13. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:96975af6e825e4ed0b24fba536ae8a407c1a89c84aab9b61032c87d4db8d2601. - Brian N. Carter: Senior Vice President, Corporate Controller and Chief Accounting Officer. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:14. Valid from: 2025-11-20. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:2f73c6ae8d4f8478c8c11bec728a9c1c8f9bf72976f368395d25fb3f22746617. - Craig L. Christensen: Senior VP & Chief Information Officer. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:15. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:a99d252b1fed6f6bdc9fdbcb96f63930e0d9afad5441f56b07cdf8e7b44a6e7c. - Dan L. Batrack: Chairman and Chief Executive Officer. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:16. Valid from: 2025-11-20. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:4bc92c36a5da874f7f8bd49a086c5b2b9e58b7d25b7dd169860a7cd8701ddff8. - Leslie Shoemaker: Executive Vice President, Chief Innovation and Sustainability Officer. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:17. Valid from: 2025-11-20. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:253d3bbc6422f438d232086887984682c47a125538df984c03ba196ec9112dbb. - Olivier H. Jeannot: President of Federal Information Technology Division. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:18. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:882c62f2bc567c4ed76ede7bff81eb289c9d25c46c1cb2348ea16db130c56124. - Preston Hopson: Executive Vice President, Chief Legal and Human Capital Officer and Secretary. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:19. Valid from: 2025-11-20. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:605f4842ea9c7592560d01a9c25b98415f684d7dfa626bc8db754c584c404ab0. - Richard A. Lemmon: Senior Vice President of Corporate Administration. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:20. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:b808409e68dc86f0b2e2a258692dc3ae450fecdfc342cb878de17a2292ca0de4. - Roger R. Argus: President. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:21. Valid from: 2025-11-20. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:4255a3f0707a104993cebeb25e5209cbca665fc900aef458e701d246cbe41e03. - Steven M. Burdick: Executive Vice President, Chief Financial Officer. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:leadership_role:22. Valid from: 2025-11-20. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:dc3bf19b291467a519e6732ef72cdb9475b11057bbb22e3544dcbdc8cd9a9897. ## Roles - PUBLISHED ## Governance - NOT_ASSERTED ## Board committees - Audit: Chair Gary R. Birkenbeuel; Members Gary R. Birkenbeuel (Chair); Jeffrey R. Feeler; Kirsten M. Volpi; M. Susan Hardwick. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_record:23. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Compensation: Chair Kirsten M. Volpi; Members Kirsten M. Volpi (Chair); Jeffrey R. Feeler; Prashant Gandhi. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_record:28. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Nominating and Governance: Chair Prashant Gandhi; Members Prashant Gandhi (Chair); Gary R. Birkenbeuel; M. Susan Hardwick. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_record:32. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. ## Financials - NOT_ASSERTED ## Workforce - NOT_ASSERTED ## Market and index context - PUBLISHED ## Legal Name - TETRA TECH INC. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:legal_name:1. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:790b8206950bc2127f444114834f17906e6748b4f0b69a3192517daef16f99b0. ## Entity Status - Public listing published. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:entity_status:3. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:790b8206950bc2127f444114834f17906e6748b4f0b69a3192517daef16f99b0. ## Published Fact - US. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:published_fact:5. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:790b8206950bc2127f444114834f17906e6748b4f0b69a3192517daef16f99b0. - Industrials. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:published_fact:6. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:790b8206950bc2127f444114834f17906e6748b4f0b69a3192517daef16f99b0. ## Committee Appointment - Gary R. Birkenbeuel: chair, Audit. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:24. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Jeffrey R. Feeler: member, Audit. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:25. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Kirsten M. Volpi: member, Audit. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:26. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - M. Susan Hardwick: member, Audit. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:27. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Kirsten M. Volpi: chair, Compensation. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:29. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Jeffrey R. Feeler: member, Compensation. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:30. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Prashant Gandhi: member, Compensation. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:31. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Prashant Gandhi: chair, Nominating and Governance. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:33. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - Gary R. Birkenbeuel: member, Nominating and Governance. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:34. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. - M. Susan Hardwick: member, Nominating and Governance. Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:committee_appointment:35. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400. ## Security Listing - TTEK (NASDAQ). Claim: alpha:claim:company:104381dd-0d87-431f-b4a1-64469fd08ce1:security_listing:36. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:790b8206950bc2127f444114834f17906e6748b4f0b69a3192517daef16f99b0. ## Coverage states | Field | Value | | --- | --- | | Identity | PUBLISHED | | Business | PUBLISHED | | Leadership | PUBLISHED | | Board and committees | PUBLISHED | | Governance | NOT_ASSERTED | | Financials | NOT_ASSERTED | | Workforce | NOT_ASSERTED | | Ownership | NOT_ASSERTED | | Ratings | NOT_PUBLISHED | | Market and index context | PUBLISHED | ## Public sources - alpha:projection-evidence:790b8206950bc2127f444114834f17906e6748b4f0b69a3192517daef16f99b0: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/tetra-tech-inc). - alpha:projection-evidence:document:c20ea5b148b2eec808fd519d53e112482b53a4136bf1b3cec411a03841f47d50: [Tetra Tech Inc DEF 14A 2026-01-09](https://www.sec.gov/Archives/edgar/data/831641/000110465926002458/tm2533152-2_def14a.htm). - alpha:projection-evidence:document:3eab64b589a1569710bc61cde694ec5232216ac0ea5d4c993f69d50f31aefd67: [Tetra Tech Inc key executives](https://financialmodelingprep.com/stable/key-executives?symbol=TTEK). - alpha:projection-evidence:document:96975af6e825e4ed0b24fba536ae8a407c1a89c84aab9b61032c87d4db8d2601: [Tetra Tech Inc key executives](https://financialmodelingprep.com/stable/key-executives?symbol=TTEK). - alpha:projection-evidence:document:2f73c6ae8d4f8478c8c11bec728a9c1c8f9bf72976f368395d25fb3f22746617: [TTEK 10-K executive officers](https://www.sec.gov/Archives/edgar/data/831641/000083164125000032/ttek-20250928.htm). - alpha:projection-evidence:document:a99d252b1fed6f6bdc9fdbcb96f63930e0d9afad5441f56b07cdf8e7b44a6e7c: [Tetra Tech Inc key executives](https://financialmodelingprep.com/stable/key-executives?symbol=TTEK). - alpha:projection-evidence:document:4bc92c36a5da874f7f8bd49a086c5b2b9e58b7d25b7dd169860a7cd8701ddff8: [TTEK 10-K executive officers](https://www.sec.gov/Archives/edgar/data/831641/000083164125000032/ttek-20250928.htm). - alpha:projection-evidence:document:253d3bbc6422f438d232086887984682c47a125538df984c03ba196ec9112dbb: [TTEK 10-K executive officers](https://www.sec.gov/Archives/edgar/data/831641/000083164125000032/ttek-20250928.htm). - alpha:projection-evidence:document:882c62f2bc567c4ed76ede7bff81eb289c9d25c46c1cb2348ea16db130c56124: [Tetra Tech Inc key executives](https://financialmodelingprep.com/stable/key-executives?symbol=TTEK). - alpha:projection-evidence:document:605f4842ea9c7592560d01a9c25b98415f684d7dfa626bc8db754c584c404ab0: [TTEK 10-K executive officers](https://www.sec.gov/Archives/edgar/data/831641/000083164125000032/ttek-20250928.htm). - alpha:projection-evidence:document:b808409e68dc86f0b2e2a258692dc3ae450fecdfc342cb878de17a2292ca0de4: [Tetra Tech Inc key executives](https://financialmodelingprep.com/stable/key-executives?symbol=TTEK). - alpha:projection-evidence:document:4255a3f0707a104993cebeb25e5209cbca665fc900aef458e701d246cbe41e03: [TTEK 10-K executive officers](https://www.sec.gov/Archives/edgar/data/831641/000083164125000032/ttek-20250928.htm). - alpha:projection-evidence:document:dc3bf19b291467a519e6732ef72cdb9475b11057bbb22e3544dcbdc8cd9a9897: [TTEK 10-K executive officers](https://www.sec.gov/Archives/edgar/data/831641/000083164125000032/ttek-20250928.htm). - alpha:projection-evidence:49408587e86302bb07171a308ae6e1cd55b23dc1ecbd506dcd400c6fb9872400: [Audit](https://www.sec.gov/Archives/edgar/data/831641/000110465926002458/tm2533152-2_def14a.htm). ## Rights | Field | Value | | --- | --- | | public_retrieval | allowed | | agent_retrieval | allowed | | redistribution | not_granted | | model_training | not_granted | | commercial_use | not_specified | | relationship_pathfinding | not_granted | | direct_contact | not_granted | ## Limitations - Absence of a leadership role, committee, or disclosure is not evidence that it does not exist. - Only explicitly published canonical company identity and current confirmed public roles are included. - Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist. - Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights. - This Company Profile is an identity and evidence record, not an Alpha rating. ## Alternate representations - [Canonical profile](https://registry.alpha.ac/companies/tetra-tech-inc) - [Public Markdown](https://registry.alpha.ac/companies/tetra-tech-inc.md) - [Public JSON](https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=record) - [JSON-LD](https://registry.alpha.ac/api/public/companies/tetra-tech-inc?format=jsonld) - MCP resource: `alpha://companies/tetra-tech-inc` at https://mcp.alpha.ac/mcp ## Connected governance records Only explicitly published, rights-cleared records. Missing records do not establish absence, safety, or complete coverage. ## Critical-risk oversight Snapshot as of 2026-10-17T09:18:36.336634+00:00; recorded 2026-10-17T09:18:36.336634+00:00. Every published assignment for this snapshot is listed. Only explicitly reviewed, rights-cleared assignments in effect on the as-of date, in the company's own wording. An assignment shows where oversight is placed, not whether it is effective. Missing records do not establish absence.