Cornerstone Construction Services, LLC

Cornerstone Construction Services, LLC, a Service-Disabled Veteran-Owned Small Business headquartered in Woburn, Massachusetts, operates as a prime contractor on federal construction, renovation, and facility maintenance projects across civilian and defense agencies, competing predominantly under SDVOSB and Total Small Business set-asides. The company holds SBA SDVOSB and VOSB certifications through October 15, 2027, and delivers work in concrete terms: general construction, mechanical systems (HVAC, boilers, chillers, pumps), electrical infrastructure, plumbing, roofing, facility alterations, and emergency repairs at federal installations across the Northeast and nationally.

Cornerstone's customer concentration reflects heavy reliance on GSA and federal facility managers. The top five funding agencies account for 55% of award count: the General Services Administration Public Buildings Service Region 1 leads with 93 awards and $721 million combined potential value, followed by the Department of the Air Force Air National Guard (49 awards, $74.2 million), the Department of the Interior National Park Service Northeast Region (40 awards, $165.4 million), the Federal Aviation Administration Headquarters (29 awards, $2.04 billion), and the Department of the Navy Installations Command (27 awards, $5.1 million). By potential value, FAA dominates at $2.04 billion across just 29 awards—a stark divergence from award count, signaling that Cornerstone holds major framework agreements with FAA that generate large task orders, while GSA work clusters into smaller delivery orders. The Department of Veterans Affairs Veterans Integrated Service Network 1 contributes $223.8 million across 22 awards, and Naval Facilities Engineering Command adds $167.1 million across 12 awards.

Cornerstone's vehicle position centers on three GSA Region 1 Construction IDIQs (three separate contracts, each valued at $125 million across North, Boston, and South Zones), where the company places ongoing task orders for facility upgrades, renovations, and maintenance at GSA-owned and leased federal properties. The FAA holds two major frameworks: a $999.999 billion Single Award Basic Ordering Agreement for design/build and bid/build construction supporting Air Traffic Control facilities across Eastern, Central, Western, and Alaska regions (awarded July 5, 2023, through July 2, 2033), and a $999.999 billion Multiple Award BOA for similar work (awarded February 13, 2023, through February 8, 2033). Both FAA vehicles carry placeholder ceilings indicating no specified dollar cap. Cornerstone also holds a $100 million VISN 1 New England Healthcare System Construction MATOC (October 9, 2024, through November 11, 2029) set aside for SDVOSB firms, a $250 million Great American Outdoors Act MATOC under Department of Interior Fish and Wildlife Service Region 9 (January 1, 2022, through December 31, 2026) for alteration, repair, and construction on public lands, a $20 million Air Force Materiel Command MACSPO IDIQ (March 9, 2023, through March 8, 2028) for maintenance and minor construction at Hanscom Air Force Base and other facilities, and a $500 million GSA EVSE (Electric Vehicle Supply Equipment) design/build IDIQ (September 1, 2022, through August 31, 2026) for EV charging infrastructure installations under Executive Order 14398.

Recent representative work includes a $3.36 million firm fixed-price delivery order from GSA for JFK Federal Building chiller plant upgrades in Boston, Massachusetts (awarded June 30, 2026, ultimate completion August 30, 2027); a $11.512 million SDVOSB sole-source definitive contract from GSA for HVAC system replacement at 11 Murphy Drive in Nashua, New Hampshire (awarded April 25, 2023, completion June 3, 2026); a $6.26 million sole-source contract from the U.S. Merchant Marine Academy for boiler replacement at Kings Point, New York (awarded July 25, 2023, completion January 28, 2025); and a $5.09 million SDVOSB sole-source remediation and restoration project at 11 Murphy Drive in Nashua, New Hampshire (awarded December 22, 2023, completion January 6, 2026). Under the VISN 1 MATOC, Cornerstone received a $3.999 million order for generator building deficiency corrections at Leeds VA Medical Center in Northampton, Massachusetts (awarded December 23, 2025, completion June 26, 2027), and a $1.71 million masonry repair order at the same facility (awarded October 2, 2025, completion October 2, 2026). Cornerstone also holds a $2.484 million firm fixed-price definitive contract from the U.S. Coast Guard for base-wide fire alarm system retrofit and replacement at Coast Guard Base Boston (awarded February 12, 2026, ultimate completion October 20, 2026).

Activity has declined modestly year over year, from 25 awards in 2022 to 8 awards in 2026 (through July 13). Ten awards with combined potential value of $14.3 million face ultimate completion within the next twenty-four months, presenting recompete exposure and opportunity for competitors.

Cornerstone operates as a prime contractor across 100% of its recent awards and carries a nearly inverse subcontracting posture compared to typical construction firms. On SCI-reportable federal service contracts above the $150,000 threshold, Cornerstone reported $33.2 million in invoiced revenue across FY2022–FY2024 (FY2022: $3.1 million, FY2023: $10.3 million, FY2024: $19.8 million), with FY2024 showing scaled delivery at 4.7 FTEs. Government-paid hourly rates on these contracts ranged from a 10th percentile of $9.10/hr to a 90th percentile of $2,043/hr, with a median of $367.57/hr—a wide band reflecting mixed labor categories from site supervision to specialized trades. Across SCI-reportable prime contracts, subcontractors performed 56% of total contractor hours, with 91 named subcontractors reported. This indicates Cornerstone builds delivery through established subcontractor networks rather than building internal labor—a model common in construction where specialized trades (HVAC, electrical, plumbing, painting, demolition, paving) are typically sourced from vendors. Named subcontractors include B L Mechanical Inc. (veteran-owned, mechanical and HVAC work), Mike's Electric and Northern Electric Inc. (electrical), Angelo Sassi & Son Plumbing & Heating (plumbing and HVAC), Hearth and Stone Restoration LLC (excavation and paving), Structural Preservation Systems LLC (concrete and waterproofing), Nashoba Paving Company Inc. (paving and landscaping), and ESC Construction LLC (electrical, communications, fire alarm, security). Cornerstone frequently uses the same core subs across multiple awards, establishing efficient delivery partnerships. The vendor also reports having held several significant IDIQs and BOAs totaling over $2.7 billion in contracting authority as of late 2025, positioning it as a capable vehicle holder and call-order aggregator for federal facility work in the Northeast and across FAA infrastructure nationally.

Cornerstone is a construction, environmental and engineering firm committed to providing clients with cost effective, quality construction and professional services. We are dedicated to the needs of our clients and maintain a high standard on safety.