CT / HX, LLC
Columbia, MD Doing business as Cooling Tower & Heat Exchangers Part of Fidelity Engineering, LLC
- UEI
- QPKNVNJWJFJ4
- CAGE
- 63CD4, 17XX0
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Corporate family
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Parent
Fidelity Engineering, LLC · Sparks Glencoe, MD
ZLYBXZPYRKG1
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Parent
Fidelity Engineering, LLC · Sparks Glencoe, MD
ZLYBXZPYRKG1
- SAM.gov registration date
- Physical address
- 9305 Gerwig Ln, Columbia, MD 21046, USA
- Website
- cthx.com
- Founded
- 1986
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
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- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 76 Miscellaneous Repair Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $150,000 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Justice | $150,000 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| J & J Maintenance Inc. | W9127824C0010 | $62,243 | |
| Valiant Government Services LLC | W9127824C0038 | $49,936 | |
| Gaghan Mechanical, Inc. | 47PM0323F0010 | $274,556 |
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About the company
CT / HX, LLC, doing business as Cooling Tower & Heat Exchangers, is a Maryland-based subsidiary of Fidelity Engineering, LLC that furnishes cooling tower equipment, repair, maintenance, and replacement services to federal agencies as a prime contractor (73% of recent awards) and as a subcontractor on federal facility maintenance and modernization programs. The vendor is foreign-owned and competes full-and-open without set-aside designation across its federal footprint.
CT / HX operates from Columbia, Maryland under parent Fidelity Engineering's corporate structure. The vendor's capability portfolio centers on HVAC systems, cooling tower service and repair, heating equipment, and facility air-handling maintenance. Recent prime work includes an August 2026 purchase order from the Federal Correctional Institution Beckley for $150 thousand to provide CYRCO cooling tower service and repair at Beaver, West Virginia. The vendor's NAICS profile is anchored in plumbing, heating, and air-conditioning contracting (nine of fifteen awards), with subordinate categories in commercial and institutional building construction and HVAC equipment repair and maintenance.
Customer concentration is dispersed across civilian facilities rather than concentrated in a single agency. The top five customer organizations by combined potential value account for 95% of recent awards, led by the Department of Veterans Affairs Veterans Health Administration Veterans Integrated Service Network 5 (three awards, $225 thousand), the General Services Administration Public Buildings Service National Capital Region (four awards, $193 thousand), the Department of Justice Bureau of Prisons Federal Correctional Institution Beckley (one award, $150 thousand), the Department of Justice Federal Bureau of Investigation Headquarters Division (one award, $85 thousand), and the Department of the Navy Office of Naval Research (one award, $45 thousand). The vendor sits on one IDC (47PM0518D0008) with two task orders. CT / HX subcontracts for cooling tower and mechanical system work under J & J Maintenance Inc., Valiant Government Services LLC, and Gaghan Mechanical, Inc., including $150 thousand equivalent scope for cooling tower motor and gearbox replacement at the U.S. Army Medical Research Institute of Chemical Defense at Aberdeen Proving Ground.
Award activity has been sparse and episodic: fifteen total awards across sixteen years in the source data, with only two awards in 2025 and one in 2026. Combined potential value across all awards totals $731 thousand, though obligated dollars reach $1.4 million across the portfolio. The vendor does not appear on government-wide acquisition vehicles or multiple-award schedules beyond the single IDC mentioned.
Quick answers
Is CT / HX, LLC registered in SAM.gov?
Yes. CT / HX, LLC's SAM.gov registration is active through January 7, 2027.
How much has CT / HX, LLC received in federal contracts?
Federal contracts obligated $150,000 to CT / HX, LLC in fiscal years 2023 through 2027.
What is CT / HX, LLC's most recent federal award?
CT / HX, LLC's most recent federal contract award is Cyrco - cooling tower (15B10326P00000100), from Federal Correctional Institution Beckley (BOP), on August 6, 2026.
On GovTribe
See CT / HX, LLC's full federal record
- Federal contract awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors