Cornerstone Environmental Consulting LLC
Flagstaff, AZ Doing business as Cornerstone Environmental
- UEI
- LXYTA3FNXNG1
- CAGE
- 5UKM6
- Primary NAICS
- 541620 Environmental Consulting Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- NAICS codes registered in SAM.gov
- SAM.gov registration date
- Physical address
- 320 N Leroux St a, Flagstaff, AZ 86001, USA
- Website
- cornerstone-environmental.com
- Founded
- 2009
- Employees
- 1-10
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- Consulting
- SIC code
- 89 Services, Not Elsewhere Classified
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| 12363N24A4120/127EAV26F0063 (1173795) cave creek abandoned mine closures cultural resource survey tonto national forest | Forest Service | $51,538 | |
| 12363N24A4120/127EAV26F0049 (1175096) north kaibab heritage survey kaibab national forest | Forest Service | $71,116 | |
| 12363N24A4120/127EAV26F0037 (1172678) tusayan and williams ranger districts heritage survey kaibab national forest | Forest Service | $179,260 | |
| 0301 Q4 CON WCS 06 rvfs PHASE3 HTG survey new out | Forest Service | $174,448 | |
| This project will provide the foundation of a developing interpretation plan for cultural sites that were damaged or… | Forest Service | $85,189 |
About Cornerstone Environmental Consulting LLC
Cornerstone Environmental Consulting LLC, doing business as Cornerstone Environmental, a self-certified small disadvantaged business based in Flagstaff, Arizona, delivers archaeological surveys, cultural resource inventories, and environmental compliance services to federal land management agencies exclusively as a prime contractor (100% of recent awards). The firm operates under the Total Small Business set-aside category across most of its work, competing under that designation on BPA calls and delivery orders with the USDA Forest Service, the Department of the Interior, and allied agencies.
Cornerstone Environmental's customer concentration is acute and regional. Eighty-nine percent of awards derive from four customer agencies, with the USDA Forest Service Southwestern Region (Region 3) dominating at 55 awards and $33.7 million in combined potential value — the source of roughly 62% of the firm's total award dollars. The Department of the Interior Bureau of Land Management Arizona Region places 10 awards ($1 million), followed by the Forest Service Pacific Northwest Region, Fish and Wildlife Service Region 2, and the Bureau of Reclamation in smaller volume. By dollar magnitude, the ranking reshuffles: the Forest Service Washington Office Acquisitions division controls a single $50 million LMIR (Land Management Integrated Resources National BPA) award issued in February 2024, which anchors the vendor's portfolio. Beneath that vehicle, the Southwestern Region delivers 55 task orders totaling $33.7 million.
Cornerstone Environmental holds a $50 million single-award BPA with the Forest Service, effective through March 2033 and available government-wide, for land management integrated resources services including archaeology, biology, aerial imaging, photogrammetry, and water resources compliance. The vendor also operates two $12.5 million indefinite delivery contracts with the Forest Service Southwestern Region for archaeological inventory and documentation in Arizona and New Mexico national forests respectively. Work flows through these vehicles as delivery orders and BPA calls, each typically ranging from $30 thousand to $900 thousand. Representative task orders include a $1.1 million Class III cultural resource survey of 7,910 mandatory and optional acres on the Coconino National Forest (October 2024, completion October 2026), a $659 thousand heritage survey across unsurveyed portions of the Dry Park, Cougar, and Little Park West areas in Arizona (May 2022, completion February 2026), and a $625 thousand archaeological survey supporting the Tonto Mountain Range Archaeological Survey for Arizona State Parks (July 2022, completion February 2026). The vendor also operates a GSA Multiple Award Schedule position, issuing 25 delivery orders across Fish and Wildlife Service, Bureau of Land Management, Bureau of Reclamation, and NRCS, valued at $4.7 million combined potential value.
Activity has been volatile. Awards per year ran 13 in 2022, declined to 7 in 2023, recovered to 8 in 2024, surged to 12 in 2025, and stand at 5 year-to-date in 2026 through mid-July. Thirteen awards (combined potential value $4.2 million) reach ultimate completion within the next twenty-four months, presenting recompete exposure across small heritage surveys and cultural inventories. The vendor operates as a 100% prime contractor with no subcontract footprint in the source data, building its own delivery teams for field archaeology, cultural resource management, and compliance documentation.
GSA Schedule labor reflects the vendor's technical specialization: fifteen labor categories span $44.25/hr entry-level administrative roles through $107.22/hr master's-level Cultural Resources Specialist VII positions, with no cleared or security-required roles. Median government-paid rates on SCI-reportable contracts run $32.09/hr, though the small SCI dataset (seven invoiced contracts totaling $498 thousand in FY2024 across 7.7 FTEs) captures only service contracts above the $150 thousand threshold and excludes the bulk of Cornerstone's delivery-order work, goods, and smaller purchases. The vendor has no named subcontractors and performs 100% of contracted hours in-house across its prime awards.
Cornerstone Environmental's geographic footprint centers on the Southwest — Arizona, New Mexico, and northern California — performing work from Flagstaff headquarters and field locations including Phoenix, Albuquerque, Flagstaff, and dispersed ranger districts across multiple national forests. The firm's capability set is narrowly focused on Class III archaeological inventories, pedestrian cultural resource surveys, osteological expertise, NAGPRA compliance, and heritage documentation in support of fuels reduction, habitat restoration, timber sales, and land management planning on federal lands. The vendor does not compete on defense, IT infrastructure, or large civilian agency modernization work; it is a specialized environmental consulting subcontractor to large primes' federal programs and a direct prime only to land management agencies in the Southwest.
Contract vehicles
SBA capabilities narrative
Our expertise includes NEPA, CWA, ESA and NHPA compliance. We can provide Section 7 consultations, cultural resource work, and tribal consultation. This includes Phase Is, AZPDES and JWD compliance, EAs and EISs.
Quick answers
What is Cornerstone Environmental Consulting LLC's UEI?
Cornerstone Environmental Consulting LLC's Unique Entity ID (UEI) in SAM.gov is LXYTA3FNXNG1.
What is Cornerstone Environmental Consulting LLC's CAGE code?
Cornerstone Environmental Consulting LLC's CAGE code is 5UKM6.
What is Cornerstone Environmental Consulting LLC's primary NAICS code?
Cornerstone Environmental Consulting LLC's primary NAICS code is 541620 (Environmental Consulting Services).
Where is Cornerstone Environmental Consulting LLC located?
Cornerstone Environmental Consulting LLC's physical address in SAM.gov is 320 N Leroux St a, Flagstaff, AZ 86001, USA.
Is Cornerstone Environmental Consulting LLC registered in SAM.gov?
Yes. Cornerstone Environmental Consulting LLC's SAM.gov registration is active through September 25, 2027.
Which contract vehicles does Cornerstone Environmental Consulting LLC hold?
Cornerstone Environmental Consulting LLC holds a place on 3 federal contract vehicles, including LMIR, MAS and PSS.
What is Cornerstone Environmental Consulting LLC's most recent federal award?
Cornerstone Environmental Consulting LLC's most recent federal contract award is 12363N24A4120/127EAV26F0063 (1173795) cave creek abandoned mine closures cultural resource survey tonto national forest (127EAV26F0063), from Forest Service, on October 1, 2026.
On GovTribe
See Cornerstone Environmental Consulting LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Funding analysis by agency, NAICS and set-aside
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