Certified Stainless Service Inc.
Ceres, CA Doing business as West-Mark
- UEI
- YAL2J8H4M3M1
- CAGE
- 1HJ27
- Primary NAICS
- 336212 Truck Trailer Manufacturing
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
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- 332312 Fabricated Structural Metal Manufacturing
- 332313 Plate Work Manufacturing
- 332322 Sheet Metal Work Manufacturing
- 332420 Metal Tank (Heavy Gauge) Manufacturing
- 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
- 333120 Construction Machinery Manufacturing
- 333131 Mining Machinery and Equipment Manufacturing
- 333132 Oil and Gas Field Machinery and Equipment Manufacturing
Show all 20
- 333618 Other Engine Equipment Manufacturing
- 333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing
- 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
- 336120 Heavy Duty Truck Manufacturing
- 336211 Motor Vehicle Body Manufacturing
- 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing
- 336999 All Other Transportation Equipment Manufacturing
- 423120 Motor Vehicle Supplies and New Parts Merchant Wholesalers
- 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
- 811111 General Automotive Repair
- 811121 Automotive Body, Paint, and Interior Repair and Maintenance
- 811198 All Other Automotive Repair and Maintenance
- Corporate family
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- Certified Stainless Service, Inc. · Bakersfield, CA JZNTFJ3587V3
- Certified Stainless Service, Inc. · Atwater, CA LLY1NS29ZMR7
- Certified Stainless Service, Inc. · Phoenix, AZ MHNCGBNJUCB3
- Certified Stainless Service, Inc. · Fairbanks, AK HSRMWW1UKRH3
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- SAM.gov registration date
- Physical address
- 2704 Railroad Ave, Ceres, CA 95307, USA
- Website
- west-mark.com
- Founded
- 1967
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Consumer Discretionary
- Automobiles & Components
- Automotive
- SIC code
- 37 Transportation Equipment
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 | $7,380,404 |
| FY2025 | $14,093,290 |
| FY2024 | $38,505,885 |
| FY2023 | $55,705,119 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $4,562,228 | |
| 2 | General Services Administration | $2,674,715 | |
| 3 | Air Force | $63,671 | |
| 4 | Department of Agriculture | $49,963 | |
| 5 | Department of the Interior | $34,472 |
Contract vehicles
Expired vehicles (2)
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Equipment trailer for uswfs alaska | Idaho Region (BLM) | $34,472 | |
| Multiple award schedules (MAS) | Federal Acquisition Service | $409,412 | |
| Multiple award schedules (MAS) | Federal Acquisition Service | $300,805 | |
| Multiple award schedules (MAS) | Federal Acquisition Service | $300,805 | |
| Multiple award schedules (MAS) | Federal Acquisition Service | $228,188 |
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Atlantic Diving Supply, Inc. | SPE8EL24F159T | $494,731 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Flowmark Vacuum Trucks | Kansas City, MO | 336211 Motor Vehicle Body Manufacturing |
| Maryland Industrial Trucks, Incorporated | Linthicum Heights, MD | 336120 Heavy Duty Truck Manufacturing |
| Garsite Progress, LLC | Kansas City, KS | 336120 Heavy Duty Truck Manufacturing |
| Truckcorp, LLC | Canton, OH | 336999 All Other Transportation Equipment Manufacturing |
| Kaufman Trailers Group, LLC | Lexington, NC | 336212 Truck Trailer Manufacturing |
About the company
Certified Stainless Service Inc., operating through its West-Mark Division, manufactures specialized transportation equipment—water trucks, fuel trucks, dump trucks, trailers, cement mixers, vacuum cleaning units, and related logistics vehicles—and sells them as a prime contractor to federal agencies on an unrestricted, full-and-open competitive basis, with no SBA socioeconomic certifications. The company is a for-profit Subchapter S corporation and labor surplus area firm headquartered in Ceres, California, where it performs in-house manufacturing and operates as a pure prime with minimal subcontracting activity.
West-Mark's federal footprint is heavily concentrated with the Defense Logistics Agency (DLA) Troop Support Construction and Equipment division, which accounts for 486 awards (68% of recent activity) valued at $1.85 billion in combined potential value—a dominant share driven by two large single-award indefinite delivery vehicles. The first IDV, awarded February 10, 2023, carries a $421.8 million ceiling through February 9, 2028, and covers commercial trucks, trailers, and related transportation equipment for global military logistics. The second IDV, awarded October 25, 2023, carries a $158.2 million ceiling through October 24, 2028, and covers commercial sweeper and scrubber equipment including vacuum loaders and tank cleaners. Together these two vehicles represent $580 million in standing capacity. Recent representative delivery orders under these IDVs include a $1.22 billion water trailer award (April 2024), a $821.8 million water-semi-trailer order (March 2026), a $780.8 million cement mixer (July 2025), and a $619.8 million truck tank septic cleaner (September 2025), all fixed-price with economic price adjustment structures. Outside DLA, West-Mark holds a GSA Multiple Award Schedule contract generating 115 task orders worth $23.6 million; a March 24, 2026 single-award $1.13 million Total Small Business set-aside IDV with GSA Federal Acquisition Service under the Non-Standard program; and scattered awards from the U.S. Forest Service, Department of the Interior, Army Corps of Engineers, Air Force, Coast Guard, National Park Service, and other civilian agencies, though these represent a small portion of overall dollars. The top five customer agencies account for 68% of recent awards and 74% of combined potential value, with DLA Troop Support Construction and Equipment dominating both volume and dollars.
Activity has remained steady—65 awards in 2022, 88 in 2023, 77 in 2024, with 44 in 2025 and 45 in 2026 to date—reflecting consistent federal procurement demand for specialized transportation equipment. Fifty-one awards face ultimate completion within the next twenty-four months, carrying combined potential value of $10.3 million and representing modest recompete exposure relative to the vendor's overall portfolio. West-Mark competes almost entirely on a full-and-open basis; while certain task orders have carried Total Small Business set-aside designations (particularly on GSA and civilian-agency contracts), the vendor holds no formal SBA minority, disadvantaged, women-owned, HUBZone, or SDVOSB certifications and operates as an unrestricted prime on its core DLA vehicles. The vendor's award history spans 949 total federal transactions since 1986, with $2.68 billion in combined potential value and approximately $405 million obligated, reflecting roughly fifteen percent draw-down across a multi-decade portfolio. NAICS concentration aligns with the vendor's manufacturing footprint: Construction Machinery Manufacturing (475 awards), Truck Trailer Manufacturing (182 awards), Heavy Duty Truck Manufacturing (74 awards), Metal Tank Manufacturing (45 awards), and related equipment categories. West-Mark is structured as a single parent entity operating through the West-Mark Division name; no significant subsidiary relationships or teaming arrangements are evident in the award record.
Quick answers
Is Certified Stainless Service Inc. registered in SAM.gov?
Yes. Certified Stainless Service Inc.'s SAM.gov registration is active through June 2, 2027.
Which contract vehicles does Certified Stainless Service Inc. hold?
Certified Stainless Service Inc. holds a place on 3 federal contract vehicles, including MAS.
How much has Certified Stainless Service Inc. received in federal contracts?
Federal contracts obligated $14,093,290 to Certified Stainless Service Inc. in fiscal year 2025 and $115,684,698 in fiscal years 2023 through 2027.
How does Certified Stainless Service Inc. rank among federal contractors?
Certified Stainless Service Inc. ranked #11 in NAICS 336212, #15 in PSC 4630 and #18 in PSC 3805 in FY2025.
What is Certified Stainless Service Inc.'s most recent federal award?
Certified Stainless Service Inc.'s most recent federal contract award is Equipment trailer for uswfs alaska (140L3726F0342), from Idaho Region (BLM), on September 25, 2026.
On GovTribe
See Certified Stainless Service Inc.'s full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors