# EDGAR Filing Document

**Accession Number:** 0001537435
**File Stem:** 0000000000-25-006921
**Filing Date:** 2025-7
**Character Count:** 2436
**Document Hash:** 6e6fd9122948cf5fb6ebc749fbe6a76f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000000000-25-006921.hdr.sgml**: 20250814

**ACCESSION NUMBER**: 0000000000-25-006921

**CONFORMED SUBMISSION TYPE**: UPLOAD

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250701

**FILED FOR**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TECOGEN INC.
- **CENTRAL INDEX KEY:** 0001537435
- **STANDARD INDUSTRIAL CLASSIFICATION:** AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 043536131
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** UPLOAD
- **SEC FILE NUMBER:** 377-08143

**BUSINESS ADDRESS:**
- **STREET 1:** 76 TREBLE COVE ROAD
- **STREET 2:** BLDG. 1
- **CITY:** NORTH BILLERICA
- **STATE:** MA
- **ZIP:** 01862
- **BUSINESS PHONE:** 781-466-6400

**MAIL ADDRESS:**
- **STREET 1:** 76 TREBLE COVE ROAD
- **STREET 2:** BLDG. 1
- **CITY:** NORTH BILLERICA
- **STATE:** MA
- **ZIP:** 01862

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** TECOGEN INC
- **DATE OF NAME CHANGE:** 20111215
**PUBLIC REFERENCE ACCESSION NUMBER**: 0001537435-25-000067

## Text-Extract

```

                                                            July 1, 2025

Abinand Rangesh
Chief Executive Officer
TECOGEN INC.
76 Treble Cove Road
Building 1
North Billerica, MA 01862

       Re: TECOGEN INC.
           Draft Registration Statement on Form S-1
           Submitted June 26, 2025
           CIK No. 0001537435
Dear Abinand Rangesh:

       This is to advise you that we do not intend to review your registration
statement.

       We request that you publicly file your registration statement at least
two business
days prior to the requested effective date and time. Please refer to Rules 460
and 461
regarding requests for acceleration. We remind you that the company and its
management are
responsible for the accuracy and adequacy of their disclosures, notwithstanding
any review,
comments, action or absence of action by the staff.

       Please contact Aliya Ishmukhamedova at 202-551-7519 with any questions.

                                                            Sincerely,

                                                            Division of
Corporation Finance
                                                            Office of
Technology
cc:   Neil R.E. Carr

```

### Attached PDF Documents

**Attachment 1:** `filename1`

_No text found in this document._