Overview
- Legal name
- MATRIX HG, INC.
- Also known as
- MATRIX HG INC
- Registered location
- CONCORD, CA, USA
- Website
- Company website ↗
- Primary NAICS
- 238220 — Plumbing, Heating, and Air-Conditioning Contractors
- Latest award activity
- Sep 11, 2026
Read company summary
MATRIX HG, INC. is associated with UEI NFNEUNFFREK5 and CAGE 4EMP1 in public federal records. AcornBids currently links 1 prime award totaling $217.0K in obligations to this entity. Its largest recorded federal customer by obligations is Environmental Protection Agency. Its recorded federal awards include work classified as Plumbing, Heating, and Air-Conditioning Contractors. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 238220 (Plumbing, Heating, and Air-Conditioning Contractors). Its public SAM.gov registration lists CONCORD, CA, USA.
At a glance
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 28, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- MATRIX HG, INC.
- Doing business as
- MATRIX HG INC
- UEI
- NFNEUNFFREK5
- CAGE
- 4EMP1
- Registered address
- 115 MASON CIR, CONCORD, CA, 94520, USA
- Registration status
- Active
- Primary NAICS
- 238220 — Plumbing, Heating, and Air-Conditioning Contractors
- SAM activation
- Aug 26, 2025
- Initial registration
- May 19, 2006
- Entity start
- Mar 15, 2002
- SAM updated
- Aug 26, 2025
- Registration expires
- Aug 22, 2026
- Fiscal year end
- Dec 31
- Place of incorporation
- CA, USA
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 68HE0923P0018AC MAINTENANCE AND EMERGENCY SERVICES FOR EPA REGION 09 AT 75 HAWTHORNE, SAN FRANCISCO | Environmental Protection Agency | $217.0K | Apr 24, 2023 | Apr 23, 2028 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Aug 26, 2025 |
| Source loaded | Sep 26, 2026 |
| Initial registration | May 19, 2006 |
| Entity start | Mar 15, 2002 |
| Industry | Reported size status |
|---|---|
| 238220 — Plumbing, Heating, and Air-Conditioning Contractors | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| ART HOOVER | Government business | Contact method not published | SAM registration | Not available |
| ARTHUR D HOOVER | Alternate government business | Contact method not published | SAM registration | Not available |
| DANIEL GREESON | Electronic business | Contact method not published | SAM registration | Not available |
| ARTHUR D HOOVER | Alternate electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 238220 — Plumbing, Heating, and Air-Conditioning Contractors
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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Explore the customer, work and award-size evidence behind each match.
About MATRIX HG, INC.
What products and services appear in its federal awards?
Recorded award industries: 238220 — Plumbing, Heating, and Air-Conditioning Contractors.
Recorded products and services: J041 — Maintenance, Repair and Rebuilding of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment.
Examples from recent award records:
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
115 MASON CIR, CONCORD, California 94520, United States
Registered location from SAM.gov; award performance locations may differ.
What is its primary registered industry?
238220 — Plumbing, Heating, and Air-Conditioning Contractors.
Primary SAM.gov NAICS classification.
Which federal agencies are represented in its awards?
Environmental Protection Agency.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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