Top DOT other accounting services contractors
In the 12 months ending Oct 5, 2026, the Department of Transportation obligated $10.7M in net prime contract dollars under NAICS 541219, down 19.6% from $13.3M in the preceding 12 months. 7 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 541219
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 | Westat, Inc. | $2.9M | $6.0M | 26.8% | — |
| 2 | RP Solutions LLC | $2.3M | $2.5M | 21.7% | — |
| 3 | Tuba Group, Inc. | $2.3M | $1.8M | 21.1% | — |
| 4 | Savalan LLC | $1.2M | $780K | 11.4% | ▲ 1 |
| 5 | TFC Consulting Inc. | $968K | $885K | 9.0% | ▼ 1 |
| 6 | Castro & Company, LLC | $622K | $320K | 5.8% | ▲ 2 |
| 7 | Integrated Finance and Accounting Solutions, LLC. | $446K | $433K | 4.2% | — |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Tuba Group, Inc.$1.8M → $2.3M (+$463K) · now #3
- Savalan LLC$780K → $1.2M (+$445K) · now #4
- Castro & Company, LLC$320K → $622K (+$302K) · now #6
Largest declines
- Westat, Inc.$6.0M → $2.9M (−$3.1M) · now #1
- Sikich CPA LLC$772K → −$10K (−$782K) · no latest-period obligations
- RP Solutions LLC$2.5M → $2.3M (−$181K) · now #2
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 |
|---|---|---|---|
| National Highway Traffic Safety Administration | $4.4M | $6.3M | Down $1.9M (30.5%) |
| Federal Transit Administration | $4.1M | $3.5M | Up $633K (18.2%) |
| Federal Aviation Administration | $2.3M | $2.4M | Down $76K (3.2%) |
| Federal Highway Administration | $446K | $433K | Up $13K (3.0%) |
| Maritime Administration | $423K | $0 | New |
| Pipeline and Hazardous Materials Safety Administration | $266K | $0 | New |
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 |
|---|---|---|---|
| 69319525F10041N | Tuba Group, Inc. COMPREHENSIVE OVERSIGHT REVIEW AND TECHNICAL ASSISTANCE PROGRAM (CORTAP) - AWARD FOR FY2026 REVIEWS -PACKAGE 5 | $1.8M | Dec 31, 2026 |
| 693JJ924F000005 | Westat, Inc. ISSUE A NEW TASK ORDER FOR THE OCCUPANT PROTECTION SURVEYS. THIS REPLACES PR 693JJ923RQ000025 | $8.9M | Jan 14, 2027 |
| 693JJ924F000013 | Westat, Inc. ISSUE A NEW TASK FOR STATISTICAL SUPPORT ON NCSA'S DATA COLLECTION SYSTEMS. THIS REPLACES PR 693JJ923RQ000688 | $7.5M | Apr 14, 2027 |
| 69319524F30175N | TFC Consulting Inc. TASK ORDER TO PROVIDE CONTRACT SUPPORT FOR THE AMERICAN WITH DISABILITIES ACT (ADA) OVERSIGHT PROGRAM | $2.4M | Sep 29, 2027 |
| 693JJ324F00411N | Integrated Finance and Accounting Solutions, LLC. FINANCIAL MANAGEMENT SUPPORT SERVICES | $1.3M | Sep 30, 2027 |
| 69319526F10028N | Tuba Group, Inc. THE PURPOSE OF THIS CALL ORDER AGAINST THE CORTAP BPA IS TO PROVIDE OVERSIGHT REVIEW, TECHNICAL ASSISTANCE, CORRECTIVE ACTION SUPPORT AND RECIPIENT TRAINING FOR FY 27 REVIEW… | $2.3M | Dec 31, 2027 |
Common questions
Who are the top DOT contractors for NAICS 541219?
In the latest 12 months, Westat, Inc. ($2.9M), RP Solutions LLC ($2.3M), Tuba Group, Inc. ($2.3M) received the most DOT obligations for other accounting services.
How concentrated is this market?
The eight largest primes held 100.0% of positive obligations, and Westat, Inc. alone held 26.8%. 0 contractors won their first obligations in this market during the latest 12 months.
Are any large DOT NAICS 541219 contracts ending soon?
6 of the largest awards in this market reach their current end date in the next 18 months. The first is 69319525F10041N (Tuba Group, Inc., $1.8M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 541219 across all agencies
DoD · NAICS 541219
$402.7MDHS · NAICS 541219
$61.1MHHS · NAICS 541219
$51.5MState Department · NAICS 541219
$40.3MVA · NAICS 541219
$14.7MTreasury · NAICS 541219
$8.2MFigures 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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