Structured intelligence coverage

Structured records are temporarily unavailable. The published profile and its source ledger remain accessible.

Identity checks do not refresh the age of governance evidence. Open a record for its source date and review state.

Profile

Identity, professional record and current appointments.

Overview

Professional record at a glance

A concise summary of information supported by the cited public sources. Missing information is treated as unknown, not as a negative finding.

Current roles
21 current organization shown on this profile
Board positions
11 supported by public sources, 0 supplied by the profile owner
Committee roles
Not establishedNo committee role is currently confirmed by the cited sources
Qualifications
Not establishedNo qualification is currently confirmed by the cited sources

Professional narrative

About

Alpha has not published a narrative summary because the current public source set is not sufficient.

Sources are shown with the information they support.

Current roles

Appointments & responsibilities

Board appointments

Governance

Board appointments, committee responsibilities and disclosed relationships.

Committee appointments across companies · Temporarily unavailable

Structured records for this section are unavailable. This does not establish that no records exist. Published profile sources remain in Evidence & History.

Board and advisory record

Board service

Sources are shown with each role, education record, or credential.

Director

TECOGEN INC.

2000-01-01 · current

Confirmed by public sourceView source

Lead Director

TECOGEN INC.

Current · start date not disclosed

Confirmed by public sourceView source

Connections

Explore the roles, education and affiliations published in this record.

TECOGEN INC.

Open TECOGEN INC. profile →

Director at TECOGEN INC.

2000-01-01 → End not stated

current · source reported

Observed: 2026-09-25

Lead Director at TECOGEN INC.

Start not stated → End not stated

current · source reported

Observed: 2026-09-25

TECOGEN INC.TECOGEN INC.John N. Hatsopoulos

Dashed lines mark past roles. Select a connection to see its dates and sources.

Relationship map

Connected through the public record

Direct relationships from verified facts and published résumé records. Private connections are excluded.

Direct public links only

Only published affiliations are shown here. Private relationships require authorized access.

Experience

Career history, education, credentials and public contributions.

Published record

Featured coverage

Selected publications and public sources used to establish this profile. Inclusion records provenance; it is not an endorsement.

Source 1 · Sec ProxyPublic profile sourceSupports Director at TECOGEN INC. (NYSE: TGEN).Open source

Basis

Identifiers, sources, dates and record limitations.

Identifiers

Alpha ID
alpha:person:john-n-hatsopoulos-tgen
Record version
public-0

Published evidence records

3 evidence records, matching Agent View. Records may refer to different locations or observations in the same document. This count is not a count of independent corroborating sources.

  1. Open source

    sec proxy · Source published: Apr 21, 2026 · Retrieved: Sep 2, 2026

    Supports 1 claim
    • Professional Role: Director at TECOGEN INC. · Claim reviewed: Sep 13, 2026

  2. Open source

    sec def 14a · Source published: Apr 21, 2026 · Retrieved: Sep 13, 2026

    Supports 1 claim
    • Professional Role: Lead Director at TECOGEN INC. · Claim reviewed: Sep 13, 2026

  3. Open source

    public source · Source published: Date unavailable · Retrieved: Date unavailable

    Supports 1 claim
    • Board membership: Serves on the board of TECOGEN INC. · Claim reviewed: Sep 13, 2026

Sources

Sources and published information

Each item links to the public source used to support it. When sources disagree, the item is clearly marked for review.

Board membership · Source reportedServes on the board of TECOGEN INC.Supported by 2 public records1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
View all sources3 records
  1. https://www.sec.gov/Archives/edgar/data/1537435/000153743526000029/tgen-20260417.htm

    Sec Proxy · Tier not stated · Reviewed Sep 2, 2026

    Supports: Director at TECOGEN INC. (NYSE: TGEN)

  2. https://www.sec.gov/Archives/edgar/data/1537435/000153743526000029/tgen-20260417.htm

    Sec Def 14a · Tier not stated · Reviewed Sep 13, 2026

    Supports: Lead Director at TECOGEN INC. (NYSE: TGEN)

  3. https://www.sec.gov/Archives/edgar/data/1537435/000153743526000029/tgen-20260417.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership