# Teradyne

> Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero.

## Record

| Field | Value |
| --- | --- |
| Representation | alpha-profile-markdown-v3 |
| Protocol | Alpha Governance Facts Protocol 0.1 |
| Schema | alpha.governance.entity.public.v1 |
| Record version | public-1 |
| Canonical entity | alpha:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e |
| Entity type | Company |
| Canonical URL | https://registry.alpha.ac/companies/teradyne-inc |
| Publication | PUBLISHED |
| Verification | source_reported |
| Verification schema | alpha-verification-states-v1 |
| Ownership | unclaimed |
| Published claims | 17 |
| Claims under review | 1 |
| Evidence records | 4 |
| Conflicts | 0 |
| Conflicts in internal review | 0 |
| Observed | 2026-09-13T04:45:09.174476+00:00 |
| Last reviewed | 2026-09-13T04:45:09.174476+00:00 |

## Identity

- Legal name: TERADYNE, INC
- Display name: Teradyne

## Leadership

- Paul J. Tufano: Chair. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Andrew "Drew" C. Henry: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Bridget van Kralingen: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Ernest E. Maddock: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Gregory S. Smith: Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Marilyn Matz: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Mercedes Johnson: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Necip Sayiner: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Peter Herweck: Independent Director. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3.
- Reagan Mills: President, Product Test. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:4.

## Roles

- PUBLISHED

## Governance

- NOT_ASSERTED

## Board committees

- PUBLISHED

## Financials

- NOT_ASSERTED

## Workforce

- NOT_ASSERTED

## Market and index context

- PUBLISHED

## Legal Name

- TERADYNE, INC. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:1.

## Headquarters

- US. Publication: UNDER_REVIEW. Verification: source_reported. Assertion: source_reported. Evidence: unlinked, under review.

## Entity Status

- Public listing published. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:1.

## Official Website

- https://www.teradyne.com. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:2.

## Published Fact

- US. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:1.
- MA. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:1.
- Technology. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:1.
- https://www.teradyne.com. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:2.

## 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:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:1: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/teradyne-inc).
- alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:2: [TERADYNE INC Form 10-K](https://www.sec.gov/Archives/edgar/data/97210/000119312526059002/ter-20251231.htm).
- alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:3: [Teradyne, Inc. DEF 14A 2026-03-27](https://www.sec.gov/Archives/edgar/data/97210/000119312526127504/ter-20260325.htm).
- alpha:evidence:company:9ab9a49c-10b2-43ad-8c27-a2443b19604e:4: TER executive roster source.

## 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.
- Current index memberships: Unavailable
- Index membership events: Unavailable

## Alternate representations

- [Canonical profile](https://registry.alpha.ac/companies/teradyne-inc)
- [Public Markdown](https://registry.alpha.ac/companies/teradyne-inc.md)
- [Public JSON](https://registry.alpha.ac/api/public/companies/teradyne-inc)
- [JSON-LD](https://registry.alpha.ac/api/public/companies/teradyne-inc?format=jsonld)
- MCP resource: `alpha://companies/teradyne-inc` at https://mcp.alpha.ac/mcp