Top DoD septic tank and related services contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $46.5M in net prime contract dollars under NAICS 562991, down 24.6% from $61.7M in the preceding 12 months. 235 prime contractors received positive obligations, and 47 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 562991
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 | Major Contracting Services, Inc. | $4.3M | $4.5M | 9.2% | ▲ 1 |
| 2 | Ronjon Rentals Inc | $2.7M | $5.5M | 5.7% | ▼ 1 |
| 3 | Skookum Educational Programs | $2.4M | $2.5M | 5.1% | ▲ 2 |
| 4 | Ronjon Rentals Vantex Service Joint Venture | $1.9M | $2.0M | 4.1% | ▲ 3 |
| 5 | Suntiff, LLC | $1.9M | $2.1M | 4.0% | ▲ 1 |
| 6 | K&H Environmental Services, LLC | $1.9M | $1.4M | 4.0% | ▲ 4 |
| 7 | Future Services General Trading & Contracting Co. | $1.8M | $1.6M | 3.7% | ▲ 2 |
| 8 | Vantex Service Corporation | $1.4M | $2.5M | 3.1% | ▼ 4 |
| 9 | Triangle Solutions, LLC | $1.2M | $218K | 2.5% | ▲ 46 |
| 10 | krätz Gmbh | $1.1M | $2.6M | 2.3% | ▼ 7 |
| 11 | Sani-CAN, Inc. | $1.0M | $739K | 2.2% | ▲ 11 |
| 12 | E & D Enterprises Inc | $936K | $797K | 2.0% | ▲ 7 |
| 13 | Hawaii Johns Inc | $934K | $848K | 2.0% | ▲ 5 |
| 14 | Wabash Consultants, LLC | $847K | $1.2M | 1.8% | ▼ 3 |
| 15 | Architectural House EST. for Contracting | $844K | $910K | 1.8% | ▲ 1 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Triangle Solutions, LLC$218K → $1.2M (+$949K) · now #9
- R & R Universal Solutions LLC$0 → $554K (+$554K) · now #23
- BOB Drayton Inc$307K → $756K (+$449K) · now #16
Largest declines
- Ronjon Rentals Inc$5.5M → $2.7M (−$2.8M) · now #2
- krätz Gmbh$2.6M → $1.1M (−$1.5M) · now #10
- Two-TAC LLC$1.8M → $452K (−$1.4M) · now #25
New to this market
47 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| R & R Universal Solutions LLC | Dec 3, 2025 | $554K |
| South P.R. Aeroservice, Inc. | Dec 24, 2025 | $403K |
| Kington Deluxe Toilet Hire SW Ltd | Jun 26, 2026 | $275K |
| Envirosmart, LLC | Dec 16, 2025 | $233K |
| Cross Equity LLC | Dec 8, 2025 | $189K |
| Ashchar SRS Ltd | Jun 23, 2026 | $150K |
| Wruck Sewer and Portable Rental L. L. C. | Jun 24, 2026 | $115K |
| Above All Sanitation, Inc. | Mar 5, 2026 | $108K |
Where the money comes from
Funding sub-agencies within the Department of Defense, 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 |
|---|---|---|---|
| Department of the Army | $27.4M | $41.4M | Down $14.1M (33.9%) |
| Department of the Air Force | $10.6M | $12.2M | Down $1.5M (12.5%) |
| Department of the Navy | $8.4M | $7.6M | Up $780K (10.2%) |
| Defense Logistics Agency | $73K | $147K | Down $73K (49.9%) |
| Organization of the Joint Chiefs of Staff | $46K | $0 | New |
| Defense Commissary Agency | $16K | $16K | Up $294 (1.8%) |
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 |
|---|---|---|---|
| M0026422P0041 | Two-TAC LLC STANDARD PORTABLE TOILET RENTAL FY22 | $1.8M | Nov 14, 2026 |
| FA462623P0001 | Mondak Portables LLC LAUNCH FACILITY PORTABLE TOILETS AT MALMSTROM AIR FORCE BASE. | $1.3M | Dec 14, 2026 |
| W9124C23P0006 | E & D Enterprises Inc PLACEMENT AND CLEANING PORTABLE CHEMICAL TOILETS POST WIDE ON FORT JACKSON. | $3.1M | Mar 31, 2027 |
| W9115126FA135 | Major Contracting Services, Inc. FULLY FUNDED TASK ORDER OF PORTABLE LATRINES SERVICES (POP 1AUG26-31JUL27), CLIN 0001 MONTHLY SERVICE PORTABLE SANITATION - 9,700 X EA, CLIN 0002 WEEKLY SERVICE PORTABLE… | $1.2M | Jul 31, 2027 |
| FA570323C0005 | Future Services General Trading & Contracting Co. ASAB SEPTIC AND RELATED SERVICES | $6.6M | Mar 31, 2028 |
Common questions
Who are the top DoD contractors for NAICS 562991?
In the latest 12 months, Major Contracting Services, Inc. ($4.3M), Ronjon Rentals Inc ($2.7M), Skookum Educational Programs ($2.4M) received the most DoD obligations for septic tank and related services.
How concentrated is this market?
The eight largest primes held 38.8% of positive obligations, and Major Contracting Services, Inc. alone held 9.2%. 47 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 562991 contracts ending soon?
5 of the largest awards in this market reach their current end date in the next 18 months. The first is M0026422P0041 (Two-TAC LLC, $1.8M obligated), ending Nov 14, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 562991 across all agencies
USDA · NAICS 562991
$23.7MInterior · NAICS 562991
$8.6MFigures 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.
Ready to connect your pursuit work?
GovEagle gives BD directors, capture managers, and proposal teams one AI workspace from pipeline through proposal, with CMMC/FedRAMP Certified compliance built in.