# EDGAR Filing Document

**Accession Number:** 0000003197
**File Stem:** 0000000000-26-003792
**Filing Date:** 2026-4
**Character Count:** 2446
**Document Hash:** 535b5c92f825aa5aa2b5ed0492bb908d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000000000-26-003792.hdr.sgml**: 20260520

**ACCESSION NUMBER**: 0000000000-26-003792

**CONFORMED SUBMISSION TYPE**: UPLOAD

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260415

**FILED FOR**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CECO ENVIRONMENTAL CORP
- **CENTRAL INDEX KEY:** 0000003197
- **STANDARD INDUSTRIAL CLASSIFICATION:** INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 132566064
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** UPLOAD
- **SEC FILE NUMBER:** 333-294924

**BUSINESS ADDRESS:**
- **STREET 1:** 5080 SPECTRUM DRIVE
- **STREET 2:** SUITE 800E
- **CITY:** ADDISON
- **STATE:** TX
- **ZIP:** 75001
- **BUSINESS PHONE:** (513) 458-2600

**MAIL ADDRESS:**
- **STREET 1:** 5080 SPECTRUM DRIVE
- **STREET 2:** SUITE 800E
- **CITY:** ADDISON
- **STATE:** TX
- **ZIP:** 75001

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** API ENTERPRISES INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALARM PRODUCTS INTERNATIONAL INC
- **DATE OF NAME CHANGE:** 19851210
**PUBLIC REFERENCE ACCESSION NUMBER**: 0001104659-26-040556

## Text-Extract

```

                                                           April 15, 2026

Todd Gleason
Chief Executive Officer
CECO Environmental Corp.
5080 Spectrum Drive, Suite 800E
Addison, Texas 75001

       Re: CECO Environmental Corp.
           Registration Statement on Form S-4
           Filed April 8, 2026
           File No. 333-294924
Dear Todd Gleason:

       This is to advise you that we have not reviewed and will not review your
registration
statement.

        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 Matthew Crispino at 202-551-3456 with any questions.

                                                           Sincerely,

                                                           Division of
Corporation Finance
                                                           Office of Technology
cc:    Jonathan Whalen

```

### Attached PDF Documents

**Attachment 1:** `filename1`

_No text found in this document._