Groff Engineering & Consulting PLLC
Mount Sterling, KY
- UEI
- DGFPCS4X3AY5
- CAGE
- 8FB89
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Sole Proprietorship
- NAICS codes registered in SAM.gov
- SAM.gov registration date
- Physical address
- 306 Jonathan Ct, Mt Sterling, KY 40353, USA
- Website
- groffengineering.com
- Founded
- 2017
- Employees
- 1-10
- Estimated annual revenue
- $0-$1M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Expert witness services | Internal Revenue Service | $117,265 | |
| Expert witiness case | Internal Revenue Service | $204,207 | |
| The IRS requires the services of an expert witness in connection with litigation | Internal Revenue Service | $94,143 | |
| TRACS0002390, approved 5/22/25. Expert witness services are required for the litigation of a case for IRS, chief… | Internal Revenue Service | $208,541 | |
| Expert witness: valuation/appraisal of syndicated conservation easements for internal revenue service chief counsel.… | Internal Revenue Service | $109,552 |
About Groff Engineering & Consulting PLLC
Groff Engineering & Consulting PLLC, a Mt Sterling, Kentucky-based sole proprietorship and limited liability company, provides expert witness services and forensic consulting to the Internal Revenue Service as a prime contractor on a full-and-open, non-set-aside basis. The vendor operates exclusively within federal expert witness and litigation support work, with 100% of its recent award footprint concentrated in a single customer—the IRS—and delivers specialized forensic accounting analysis, property and mineral interest valuation, mining feasibility assessment, and tax litigation support without subcontracting.
All nineteen awards in the source span the IRS as the sole customer, representing $7.6 million in combined potential value. The vendor's recent award volume has grown from one award in 2022 to seven in 2025, with two awards issued through July 2026, indicating sustained demand from the IRS Chief Counsel's office. The award portfolio is dominated by purchase orders and definitive contracts structured on labor-hours pricing, with ultimate completion dates clustering in the 2027–2030 window. Six awards with combined potential value of $5.3 million reach final completion within the next twenty-four months and face recompete exposure. Representative recent work includes a $346,219 definitive contract (May 2025) for expert witness services in IRS Chief Counsel litigation; a $207,110 purchase order (July 2026) for expert witness services with performance in Atlanta, Georgia; a $198,410 purchase order (May 2025) for expert witness services in syndicated conservation easement valuation; and a $2,401,538 definitive contract (February 2023) for expert witness, forensic accounting, and tax abatement support through February 2028. The vendor's largest single award was $2.401 million; the smallest in recent activity was approximately $66,913, all labor-hour engagements with no set-aside protection.
Service Contract Inventory data covers only the $642,565 contract awarded in July 2022, which reported $12 thousand in invoiced revenue in FY2022 across 56 labor hours at a derived rate of $208.07 per hour. No SCI-reportable invoicing appears in FY2023 or FY2024, and FTE tracking shows zero full-time-equivalent staff captured in the SCI dataset across all years, reflecting that most of the vendor's active caseload sits below the SCI $150,000 reporting threshold or remains classified. The vendor self-performs all work without named subcontractors, delivering specialized technical and valuation expertise directly to the IRS with no subcontract layer.
Quick answers
What is Groff Engineering & Consulting PLLC's UEI?
Groff Engineering & Consulting PLLC's Unique Entity ID (UEI) in SAM.gov is DGFPCS4X3AY5.
What is Groff Engineering & Consulting PLLC's CAGE code?
Groff Engineering & Consulting PLLC's CAGE code is 8FB89.
What is Groff Engineering & Consulting PLLC's primary NAICS code?
Groff Engineering & Consulting PLLC's primary NAICS code is 541330 (Engineering Services).
Where is Groff Engineering & Consulting PLLC located?
Groff Engineering & Consulting PLLC's physical address in SAM.gov is 306 Jonathan Ct, Mt Sterling, KY 40353, USA.
Is Groff Engineering & Consulting PLLC registered in SAM.gov?
Yes. Groff Engineering & Consulting PLLC's SAM.gov registration is active through December 24, 2026.
What is Groff Engineering & Consulting PLLC's most recent federal award?
Groff Engineering & Consulting PLLC's most recent federal contract award is Expert witness services (2023H226P00304), from Internal Revenue Service, on July 1, 2026.
On GovTribe
See Groff Engineering & Consulting PLLC's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
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