Cornerstone Environmental Consulting LLC

Flagstaff, AZ

UEI
LXYTA3FNXNG1
CAGE
5UKM6
Primary NAICS
541620 Environmental Consulting Services
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
  • Limited Liability Company
Entity structure
Partnership or Limited Liability Partnership
SAM.gov registration date
Physical address
320 N Leroux St a, Flagstaff, AZ 86001, USA
Founded
2009
Employees
1-10
Estimated annual revenue
$1M-$10M
Industry
  1. Industrials
  2. Commercial & Professional Services
  3. Professional Services
  4. 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 .

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 $2,138,021
FY2025 $1,784,850
FY2024 $1,154,882
FY2023 $2,372,664

Top agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Agriculture $1,770,578
2 Department of the Interior $367,443

Contract vehicles

Contract awards

Latest 5 listed here. See the rest on GovTribe.

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About the company

Cornerstone Environmental Consulting LLC, doing business as Cornerstone Environmental, is a self-certified small disadvantaged business headquartered in Flagstaff, Arizona, that operates exclusively as a prime contractor delivering archaeological surveys, cultural resource inventories, and environmental compliance services to federal land management agencies across the Southwest. The firm holds 100 prime awards (90 contracts and IDVs plus enumerated grant work) with no subcontract footprint — it performs all contracted work in-house with no named subcontractors. Cornerstone Environmental competes predominantly under Total Small Business set-asides on the Forest Service's Land Management Integrated Resources (LMIR) National BPA and other agency vehicles; roughly 56% of recent awards carry Total Small Business designations, with the remainder on full-and-open or no-set-aside task orders against existing schedules.

Customer concentration is extreme: the Department of Agriculture Forest Service Southwestern Region (Region 3) accounts for 64 of 90 recent prime awards (71% of award count) and $34.8 million of $89.8 million combined potential value (39% of dollars). The Department of the Interior Bureau of Land Management Arizona Region follows with 10 awards ($1 million). Cornerstone Environmental also serves the National Park Service, Fish and Wildlife Service, Natural Resources Conservation Service, and the Department of Energy in smaller volumes. The top five customer agencies by award count cover 89% of recent awards.

Cornerstone Environmental anchors its prime footprint to a single $50 million single-award Blanket Purchase Agreement with the USDA Forest Service, awarded in February 2024 and effective through March 2033. This LMIR BPA, available to all federal agencies, covers land management integrated resources services including archaeology, biology, aerial imaging, photogrammetry, and water resources compliance. Nineteen task orders under LMIR have generated $3.1 million in combined potential value. The firm also holds multiple Indefinite Delivery Contracts with the Forest Service Southwestern Region (16 task orders under contract 12837120D0009, 16 under contract AG8371C140009) valued at $2.9 million and $1.2 million respectively, and sits on the GSA Multiple Award Schedule with 25 task orders generating $4.7 million. Representative recent work includes a $1.118 million delivery order for Class III cultural resource survey of 7,910 acres (2,568 mandatory and 5,342 optional) supporting National Historic Preservation Act compliance on the Tonto National Forest (awarded October 2024); a $899,959 contract for archaeological surveys on the Kaibab National Forest's Williams and Tusayan Ranger Districts supporting hazardous fuels reduction (June 2023); and a $522,656 delivery order for grassland restoration cultural surveys on the Kaibab (August 2023). Recent FY2026 activity includes multiple LMIR task orders for heritage surveys and archaeological inventories on Arizona and New Mexico national forests, ranging from $51 thousand to $328 thousand per task.

Activity has grown from 13 awards in 2022 to 16 in 2026 (year-to-date), with 18 awards totaling $4.3 million combined potential value reaching ultimate completion inside the next twenty-four months — a moderate recompete exposure across the LMIR BPA and agency-specific IDCs. Service Contract Inventory data show minimal SCI-reportable invoicing: $498 thousand in FY2024 across 7.7 FTEs, with no SCI-reported revenue in FY2022, FY2023, or FY2025. This reflects the fact that SCI captures only service contracts above the $150,000 threshold; most of Cornerstone's work falls below that reporting floor, and the portfolio skews toward deliverables-based archaeological and survey services rather than time-and-materials labor. GSA Schedule labor rates span from $44.25/hr (Administrative I, high school) to $107.22/hr (Cultural Resources Specialist VII, master's degree), positioning the firm to staff small professional teams and lower-cost survey crews. The firm offers no security-cleared labor categories.

Cornerstone Environmental specializes in Class III cultural resource inventories, heritage documentation, archaeological data recovery, and NAGPRA compliance support for land management projects including timber sales, fuel reduction, habitat restoration, and post-fire recovery across Southwest national forests and public lands. The firm has executed work under the National Historic Preservation Act and maintains expertise in Section 106 review and site recordation to state standards. All work is performed in-house from the Flagstaff headquarters and Arizona/New Mexico field locations; the vendor reports 100% prime-contractor delivery with zero subcontractor hours across its federal footprint.

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

Is Cornerstone Environmental Consulting LLC registered in SAM.gov?

Yes. Cornerstone Environmental Consulting LLC's SAM.gov registration is active through September 25, 2027.

What is Cornerstone Environmental Consulting LLC's CAGE code?

Cornerstone Environmental Consulting LLC's CAGE code is 5UKM6, and its Unique Entity ID (UEI) is LXYTA3FNXNG1.

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.

How much has Cornerstone Environmental Consulting LLC received in federal contracts?

Federal contracts obligated $1,784,850 to Cornerstone Environmental Consulting LLC in fiscal year 2025 and $7,450,418 in fiscal years 2023 through 2027.

How does Cornerstone Environmental Consulting LLC rank among federal contractors?

Cornerstone Environmental Consulting LLC ranked #26 in PSC B503 and #27 in PSC F099 in FY2025.

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, 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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