Federal contractor profile
UEI N78KKEV1N7V7CAGE 52B94
WELCH CONSTRUCTION INC. is associated with UEI N78KKEV1N7V7 and CAGE 52B94 in public federal records. AcornBids currently links 14 prime awards totaling $97.7M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Veterans Affairs. Its recorded federal awards include work classified as Commercial and Institutional Building Construction; Plumbing, Heating, and Air-Conditioning Contractors; Electrical Contractors and Other Wiring Installation Contractors. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 236220 (Commercial and Institutional Building Construction). Its public SAM.gov registration lists MARCELLUS, NY, USA.
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 Refresh pending; these totals may be out of date.
Public SAM.gov registration details.
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.
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 36C24222C0062BUFAALO VAMC SWITCHGEAR REPLACEMENT | Department of Veterans Affairs | $33.0M | Jul 14, 2022 | Jun 1, 2027 |
| 36C24221C0072RENOVATE CLC | Department of Veterans Affairs | $6.7M | Jan 28, 2021 | Sep 5, 2026 |
| 36C24226C0024REPLACE STEAM COILS AT THE SYRACUSE VAMC | Department of Veterans Affairs | $1.4M | Mar 11, 2026 | Dec 26, 2026 |
| 36C24225C0031REPLACE AHU 2-7- AND 11 | Department of Veterans Affairs | $6.8M | Mar 10, 2025 | May 26, 2027 |
| 36C24223C00569C RENOVATION BUFFALO VAMC | Department of Veterans Affairs | $14.1M | Mar 15, 2023 | Jun 9, 2026 |
| FA875125C0003REPAIR/REPLACE THE HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) SYSTEMS IN BUILDING 3 AT THE AIR FORCE RESEARCH SITE, LOCATED IN ROME, NY | Department of Defense | $7.8M | Jul 11, 2025 | Jan 10, 2027 |
| 36C24226P0454CONNECT POWER TO FD BREATHING AIR COMPRESSOR | Department of Veterans Affairs | $4.9K | Mar 6, 2026 | Apr 6, 2026 |
| 36C24225C0026RENOVATE B9 | Department of Veterans Affairs | $5.5M | Feb 14, 2025 | Feb 11, 2027 |
| 36C24224C0072ADMINISTRATIVE SWING SPACE- BUFFALO VAMC | Department of Veterans Affairs | $1.4M | May 21, 2024 | Nov 28, 2025 |
| 36C24224C0034RENOVATE MAIN KITCHEN | Department of Veterans Affairs | $3.2M | Jan 4, 2024 | Oct 30, 2025 |
Modeled recompete windows are estimates, not announced solicitations or guarantees.
| Registration evidence | Date |
|---|---|
| SAM updated | Mar 9, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Apr 23, 2008 |
| Entity start | Jul 1, 2000 |
Registration classifications: Self Certified Small Disadvantaged Business, Veteran Owned Business, Service Disabled Veteran Owned Business, Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 221320 — Sewage Treatment Facilities | Not reported |
| 236210 — Industrial Building Construction | Not reported |
| 236220 — Commercial and Institutional Building Construction | Not reported |
| 237110 — Water and Sewer Line and Related Structures Construction | Not reported |
| 237120 — Oil and Gas Pipeline and Related Structures Construction | Not reported |
| 237130 — Power and Communication Line and Related Structures Construction | Not reported |
| 237310 — Highway, Street, and Bridge Construction | Not reported |
| 237990 — Other Heavy and Civil Engineering Construction | Not reported |
| 238110 — Poured Concrete Foundation and Structure Contractors | Not reported |
| 238120 — Structural Steel and Precast Concrete Contractors | Not reported |
| 238140 — Masonry Contractors | Not reported |
| 238160 — Roofing Contractors | Not reported |
| 238190 — Other Foundation, Structure, and Building Exterior Contractors | Not reported |
| 238210 — Electrical Contractors and Other Wiring Installation Contractors | Not reported |
| 238220 — Plumbing, Heating, and Air-Conditioning Contractors | Not reported |
| 238310 — Drywall and Insulation Contractors | Not reported |
| 238330 — Flooring Contractors | Not reported |
| 238350 — Finish Carpentry Contractors | Not reported |
| 238390 — Other Building Finishing Contractors | Not reported |
| 238910 — Site Preparation Contractors | Not reported |
| 238990 — All Other Specialty Trade Contractors | Not reported |
| 332312 — Fabricated Structural Metal Manufacturing | Not reported |
| 332321 — Metal Window and Door Manufacturing | Not reported |
| 332322 — Sheet Metal Work Manufacturing | Not reported |
| 332323 — Ornamental and Architectural Metal Work Manufacturing | Not reported |
| 561210 — Facilities Support Services | Not reported |
| 562910 — Remediation Services | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| MARK J WELCH | Government business | Contact method not published | SAM registration | Not available |
| MARK J WELCH | Alternate government business | Contact method not published | SAM registration | Not available |
| MARK J WELCH | Electronic business | Contact method not published | SAM registration | Not available |
| MARK J WELCH | Alternate electronic business | Contact method not published | SAM registration | Not available |
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
Explore the customer, work and award-size evidence behind each match.
Recorded award industries: 236220 — Commercial and Institutional Building Construction; 238220 — Plumbing, Heating, and Air-Conditioning Contractors; 238210 — Electrical Contractors and Other Wiring Installation Contractors.
Recorded products and services: Z1DA — MAINTENANCE OF HOSPITALS AND INFIRMARIES; Y1DA — CONSTRUCTION OF HOSPITALS AND INFIRMARIES; Y1NB — CONSTRUCTION OF HEATING AND COOLING PLANTS.
Examples from recent award records:
These records describe federal award work, not every company capability. Review the award evidence.
4331 SLATE HILL RD, MARCELLUS, New York 13108, United States
Registered location from SAM.gov; award performance locations may differ.
236220 — Commercial and Institutional Building Construction.
Primary SAM.gov NAICS classification.
Department of Veterans Affairs; Department of Defense.
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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