Top DOT offices of certified public accountants contractors
In the 12 months ending Oct 5, 2026, the Department of Transportation obligated $8.6M in net prime contract dollars under NAICS 541211, up 65.9% from $5.2M in the preceding 12 months. 13 prime contractors received positive obligations, and 4 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Transportation. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DOT contractors for NAICS 541211
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Kpmg LLP | $3.1M | $2.6M | 35.7% | — |
| 2 | Holmes & Company, L.L.C. | $2.0M | $2.1M | 23.1% | — |
| 3 | Ernst & Young LLP | $1.6M | $28K | 18.6% | ▲ 10 |
| 4 | Hamilton Enterprises, LLC | $951K | $743K | 11.0% | ▼ 1 |
| 5 | American Institutes for Research in the Behavioral Sciences | $332K | $319K | 3.9% | ▼ 1 |
| 6 | Allmond & Co, LLC | $259K | $253K | 3.0% | ▼ 1 |
| 7 | Williams, Adley & Company DC LLP | $100K | $98K | 1.2% | — |
| 8 | Tichenor & Associates, LLP | $74K | $44K | 0.9% | ▲ 3 |
| 9 | Regis & Associates, PC | $66K | $68K | 0.8% | — |
| 10 | Davis Farr LLP | $66K | $56K | 0.8% | — |
| 11 | Carmichael, Brasher, Tuvell & Company, P.C. | $49K | $29K | 0.6% | ▲ 1 |
| 12 | Lopez & Associates, LLP | $40K | $76K | 0.5% | ▼ 4 |
| 13 | Davis Audrey Robinette | $15K | $13K | 0.2% | ▲ 1 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Ernst & Young LLP$28K → $1.6M (+$1.6M) · now #3
- TFC Consulting Inc.−$705K → −$9K (+$696K) · no latest-period obligations
- Kpmg LLP$2.6M → $3.1M (+$495K) · now #1
Largest declines
- Watkins Government Services LLC$110K → $0 (−$110K) · no latest-period obligations
- Holmes & Company, L.L.C.$2.1M → $2.0M (−$78K) · now #2
- Lopez & Associates, LLP$76K → $40K (−$35K) · now #12
Where the money comes from
Funding sub-agencies within the Department of Transportation, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Office of Inspector General | $3.6M | $3.2M | Up $452K (14.2%) |
| Federal Transit Administration | $3.2M | $1.8M | Up $1.4M (80.4%) |
| Federal Highway Administration | $1.4M | −$267 | Up $1.4M (524951.3%) |
| National Highway Traffic Safety Administration | $332K | $319K | Up $13K (4.2%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 69319525F10047N | Holmes & Company, L.L.C. TO PROCURE PROFESSIONAL SERVICES PERTAINING TO COMPREHENSIVE OVERSIGHT REVIEW AND TECHNICAL ASSISTANCE PROGRAM (CORTAP), FOR FY2026 OVERSIGHT REVIEWS. | $1.5M | Dec 31, 2026 |
| 693JK421F7500003 | Kpmg LLP AUDIT SERVICES FOR DOT AND FAA FINANCIAL STATEMENTS, ESC SSAE NO 18 ATTESTATION ENGAGEMENT, AND DOT DATA ACT | $13.3M | Jan 5, 2027 |
| 693JJ126F00102N | Ernst & Young LLP SECURITY ASSESSMENT AND AUTHORIZATION SUPPORT SERVICES TASK ORDER | $1.4M | Sep 28, 2027 |
| 69319526F10023N | Holmes & Company, L.L.C. ISSUE A BPA CALL ORDER FOR CORTAP - FY2027 REVIEWS - PACKAGE 2 | $1.9M | Dec 31, 2027 |
Common questions
Who are the top DOT contractors for NAICS 541211?
In the latest 12 months, Kpmg LLP ($3.1M), Holmes & Company, L.L.C. ($2.0M), Ernst & Young LLP ($1.6M) received the most DOT obligations for offices of certified public accountants.
How concentrated is this market?
The eight largest primes held 97.3% of positive obligations, and Kpmg LLP alone held 35.7%. 0 contractors won their first obligations in this market during the latest 12 months.
Are any large DOT NAICS 541211 contracts ending soon?
4 of the largest awards in this market reach their current end date in the next 18 months. The first is 69319525F10047N (Holmes & Company, L.L.C., $1.5M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$13.9MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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