Mass Tank Inspection Services LLC
Middleborough, MA
- UEI
- VYAMHABZC7Q9
- CAGE
- 6VHW7
- Primary NAICS
- 541620 Environmental Consulting Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- Other NAICS codes in SAM.gov
-
- 213112 Support Activities for Oil and Gas Operations
- 236220 Commercial and Institutional Building Construction
- 237110 Water and Sewer Line and Related Structures Construction
- 237120 Oil and Gas Pipeline and Related Structures Construction
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
- 238320 Painting and Wall Covering Contractors
- 238990 All Other Specialty Trade Contractors
- 326199 All Other Plastics Product Manufacturing
Show all 21
- 332420 Metal Tank (Heavy Gauge) Manufacturing
- 541330 Engineering Services
- 541350 Building Inspection Services
- 541380 Testing Laboratories and Services
- 541990 All Other Professional, Scientific, and Technical Services
- 561210 Facilities Support Services
- 561730 Landscaping Services
- 561790 Other Services to Buildings and Dwellings
- 561990 All Other Support Services
- 562910 Remediation Services
- 562991 Septic Tank and Related Services
- 562998 All Other Miscellaneous Waste Management Services
- 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
- SAM.gov registration date
- Physical address
- 29 Abbey Ln, Middleborough, MA 02346, USA
- Website
- masstank.com
- Founded
- 1915
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Industrial Conglomerates
- Industrials & Manufacturing
- SIC code
- 34 Fabricated Metal Products
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 | $1,678,718 |
| FY2025 | $1,061,426 |
| FY2024 | $1,535,910 |
| FY2023 | $1,886,995 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $1,118,231 | |
| 2 | Department of the Navy | $460,906 | |
| 3 | Department of the Army | $52,351 | |
| 4 | Department of the Interior | $23,730 | |
| 5 | Department of Homeland Security | $19,750 | |
| 6 | Department of Justice | $3,750 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Emcor Government Services, Inc. | 47PN0324F0009 | $6,315 | |
| Emcor Government Services, Inc. | 47PN0324F0009 | $10,000 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Jbl.-Prs. JV LLC | Summerville, SC | 541330 Engineering Services |
| Interspec, LLC | Virginia Beach, VA | 541990 All Other Professional, Scientific, and Technical Services |
| JBL Solutions Inc. | Fife, WA | 561990 All Other Support Services |
| Mid Atlantic Petroleum Services, Inc. | Chesapeake, VA | 236220 Commercial and Institutional Building Construction |
| Vetcon Services LLC | Lutz, FL | 541990 All Other Professional, Scientific, and Technical Services |
About the company
Mass Tank Inspection Services LLC, a service-disabled veteran-owned small business based in Middleborough, Massachusetts, delivers aboveground and underground storage tank inspection, testing, maintenance, repair, and regulatory compliance services to federal agencies as a prime contractor on 172 awards (99% of its award footprint) and as a subcontractor on 2 awards. The company operates as a limited liability partnership and holds SDVOSB and VOSB certifications through May 9, 2027, competing predominantly under total-small-business and service-disabled-veteran-owned-small-business set-asides, with a recurring secondary posture in full-and-open procurements.
Mass Tank's capability portfolio centers on API 653 certified tank inspection protocols, confined-space entry operations, tank component replacement (manhole covers, containment pans, pneumercator panels), fuel polishing, cathodic protection services, epoxy coating, emergency boiler plant repairs, and state-required documentation and compliance reporting. The company also manufactures replacement tanks and tank components. Representative work includes a $296,861 definitive contract with the Engineer Research and Development Center (awarded April 1, 2026) for annual inspection, testing, maintenance, and repair of nine aboveground fuel storage tanks at the Cold Regions Research and Engineering Laboratory in Hanover, New Hampshire, through June 30, 2031; a $1.62 million definitive contract with Veterans Integrated Service Network 2 (awarded April 1, 2023) for tank and underground pipe monitoring, inspection, maintenance, regulatory compliance, and emergency response at Northport, New York, through March 31, 2028; and a $485,519 definitive contract with Veterans Integrated Service Network 19 (awarded July 22, 2024) for fuel storage tank inspection and fuel polishing at Rocky Mountain Regional VA Medical Center in Aurora, Colorado, through July 21, 2029.
Customer concentration sits heavily with the Department of the Navy and Department of Veterans Affairs. The top five funding agencies account for 61% of awards by count and 78% of combined potential value. Navy Installations Command leads by dollars ($14.8 million across 22 awards), followed by Veterans Integrated Service Network 2 ($5.4 million across 19 awards) and Naval Facilities Engineering Command ($4.6 million across 37 awards). Army Installation Management Command Northeast Region and Department of Veterans Affairs Veterans Integrated Service Network 19 round out the active set. Activity has declined year over year—23 awards in 2022 to 12 in 2026—though combined potential value across all 174 awards totals $36.1 million, with $17.1 million obligated (47% of combined potential value). Twelve awards carrying combined potential value of $2.6 million reach ultimate completion in the next twenty-four months and face recompete exposure.
Mass Tank holds four primary indefinite-delivery contracts: a $2.967 million SDVOSB single-award IDIQ with Naval Installations Command for cathodic protection services through May 31, 2030; a $131,747 total-small-business single-award IDC with Army Installation Management Command Northeast Region for storage tank testing at Fort Drum, New York, through February 14, 2027, which has generated three delivery orders; a $261,736 total-small-business single-award IDIQ with Veterans Integrated Service Network 2 for tank maintenance and repair at Hudson Valley VA Healthcare System through January 31, 2027, which has issued four task orders since June 2022; and a $523,472 total-small-business single-award IDC with Veterans Integrated Service Network 2 for tank services at Hudson Valley facilities, now terminated for convenience. Beyond these, Mass Tank places work under multiple Navy IDIQs: contract N4008521D0015 has generated 23 task orders ($2.1 million combined value), N4008515D9607 has generated 14 task orders ($1.2 million), and N4008515D8726 has generated 9 task orders ($1 million). Mass Tank also holds a GSA Federal Supply Schedule contract awarded May 18, 2026, through May 17, 2031, with a $475,000 ceiling, enabling direct ordering by federal agencies without competition. The schedule carries ten labor categories ranging from Administrative Assistant at $43.87 per hour through Senior Inspector at $196.26 per hour, encompassing administrative, professional consultant, and specialized inspection roles with nine to twenty-five years of experience; no security-cleared positions are offered.
In its subcontractor role, Mass Tank delivers fuel tank testing and inspection services to Emcor Government Services, Inc., on two awards for the Federal Bureau of Investigation Central Records Complex in Winchester, Virginia, under contract 47PN0324F0009 (base year and option year one, both awarded under no set-aside). The company's recent trajectory reflects consistent focus on Veterans Affairs and Navy infrastructure maintenance, with contract work heavily concentrated in the Northeast and at key installations including Naval Station Newport, Rhode Island; Naval Base Groton, Connecticut; and multiple VA healthcare system facilities in New York and Connecticut.
SBA capabilities narrative
Tank Fabrication and Inspection, Cathodic Protection, Environmental Engineering
Quick answers
Is Mass Tank Inspection Services LLC registered in SAM.gov?
Yes. Mass Tank Inspection Services LLC's SAM.gov registration is active through October 8, 2027.
Which contract vehicles does Mass Tank Inspection Services LLC hold?
Mass Tank Inspection Services LLC holds a place on 1 federal contract vehicle: MAS.
How much has Mass Tank Inspection Services LLC received in federal contracts?
Federal contracts obligated $1,061,426 to Mass Tank Inspection Services LLC in fiscal year 2025 and $6,163,049 in fiscal years 2023 through 2027.
How does Mass Tank Inspection Services LLC rank among federal contractors?
Mass Tank Inspection Services LLC ranked #6 in PSC H299, #14 in PSC J091 and #23 in NAICS 562998 in FY2025.
What is Mass Tank Inspection Services LLC's most recent federal award?
Mass Tank Inspection Services LLC's most recent federal contract award is Water tower inspection & maintenance (36C24126P0795), from Veterans Integrated Service Network 1 (VHA), on September 28, 2026.
On GovTribe
See Mass Tank Inspection Services LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors