Top 100 Contractors in NAICS 33121: Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 33121: Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, FY2025.
The top 10 won 55% of NAICS 33121 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $16,659,299 Net of deobligations, by contracts coded NAICS 33121 or a code under it
- Contractors
- 237 Parent companies with an obligation
- Largest contractor
- Centroid, Inc. $3.96 million, 21.1% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Centroid, Inc.
Top agencies
|
$3,956,295 | ||
| 2 |
Aviator Systems Inc.
Top agencies
|
$1,384,360 | ||
| 3 |
Rudy Iii, Ernest
Top agencies
|
$1,232,494 | ||
| 4 | $1,110,665 | |||
| 5 |
JBL System Solutions LLC
Top agencies
|
$717,826 | ||
| 6 |
Sarco Inc.
Top agencies
|
$462,401 | ||
| 7 | $434,182 | |||
| 8 |
Hoopoe Labs Inc.
Top agencies
|
$349,993 | ||
| 9 | $339,567 | |||
| 10 |
Wickcraft Company, Inc.
Top agencies
|
$319,908 | ||
| 11 | $264,020 | |||
| 12 |
S3 Aerodefense LLC
Top agencies
|
$233,841 | ||
| 13 |
Metco Engineering Corp
Top agencies
|
$190,372 | ||
| 14 |
Hughes Brothers Inc.
Top agencies
|
$179,620 | ||
| 15 | $174,352 | |||
| 16 |
Delflo Industries, Inc.
Top agencies
|
$172,107 | ||
| 17 |
Aqua-Chem, Inc.
Top agencies
|
$160,188 | ||
| 18 |
W.p.e., Inc.
Top agencies
|
$149,862 | ||
| 19 | $149,300 | |||
| 20 |
Marmetal Industries, LLC
Top agencies
|
$148,638 | ||
| 21 |
Jgils, LLC
Top agencies
|
$147,488 | ||
| 22 |
Grandida, LLC
Top agencies
|
$136,131 | ||
| 23 |
One-Way Manufacturing Inc.
Top agencies
|
$119,026 | ||
| 24 | $117,617 | |||
| 25 | $112,957 | |||
| 26 | $109,970 | |||
| 27 |
BTM Inc.
Top agencies
|
$108,277 | ||
| 28 | $100,103 | |||
| 29 |
2Lyons Aerospace LLC
Top agencies
|
$94,296 | ||
| 30 |
FBC Enterprises LLC
Top agencies
|
$94,111 | ||
| 31 | $91,407 | |||
| 32 |
Ho-Chunk, Inc.
Top agencies
|
$90,880 | ||
| 33 |
Hurlen Corporation
Top agencies
|
$90,322 | ||
| 34 |
Burhani Enterprises Inc.
Top agencies
|
$87,734 | ||
| 35 |
Precision Metals Corp.
Top agencies
|
$87,308 | ||
| 36 | $85,320 | |||
| 37 | $81,540 | |||
| 38 |
Lobo Ventures Ltd
Top agencies
|
$81,000 | ||
| 39 | $78,937 | |||
| 40 |
CHG Group Inc
Top agencies
|
$73,382 | ||
| 41 |
Empire Avionics Corp.
Top agencies
|
$72,528 | ||
| 42 | $71,714 | |||
| 43 |
General Tool Company
Top agencies
|
$69,649 | ||
| 44 |
BMC Software Inc.
Top agencies
|
$69,570 | ||
| 45 |
Kampi Components Co Inc.
Top agencies
|
$69,359 | ||
| 46 | $64,449 | |||
| 47 |
Sogen Company, Inc.
Top agencies
|
$64,447 | ||
| 48 | $64,243 | |||
| 49 |
TECH Service Solutions LLC
Top agencies
|
$61,909 | ||
| 50 | $60,993 | |||
| 51 | $60,350 | |||
| 52 | $60,103 | |||
| 53 | $58,759 | |||
| 54 |
Tactair Fluid Controls Inc
Top agencies
|
$57,514 | ||
| 55 |
Triman Industries Inc.
Top agencies
|
$55,434 | ||
| 56 | $53,890 | |||
| 57 |
Essex Industries Inc.
Top agencies
|
$51,766 | ||
| 58 | $50,951 | |||
| 59 |
H C Merchandisers, Inc.
Top agencies
|
$49,927 | ||
| 60 |
Braketechnique Inc.
Top agencies
|
$49,400 | ||
| 61 |
Cold LLC
Top agencies
|
$46,656 | ||
| 62 | $44,860 | |||
| 63 |
Aerometals, Inc.
Top agencies
|
$44,646 | ||
| 64 | $44,303 | |||
| 65 |
Tork Systems Inc.
Top agencies
|
$40,898 | ||
| 66 | $40,846 | |||
| 67 |
J.G.B. Enterprises Inc.
Top agencies
|
$40,048 | ||
| 68 | $38,873 | |||
| 69 |
Aantilia LLC
Top agencies
|
$38,844 | ||
| 70 |
GI Corporation
Top agencies
|
$37,824 | ||
| 71 |
PK5 Solutions LLC
Top agencies
|
$37,418 | ||
| 72 | $37,102 | |||
| 73 | $36,745 | |||
| 74 |
Aviarms Support Corp
Top agencies
|
$36,582 | ||
| 75 |
Era Industrial Sales Corp
Top agencies
|
$34,224 | ||
| 76 | $33,457 | |||
| 77 |
Cepeda Associates, Inc.
Top agencies
|
$33,006 | ||
| 78 | $32,193 | |||
| 79 |
Ruotanen Associates Inc.
Top agencies
|
$30,940 | ||
| 80 |
T & T Materials Inc.
Top agencies
|
$29,750 | ||
| 81 |
ECI Defense Group, Inc.
Top agencies
|
$29,661 | ||
| 82 | $29,267 | |||
| 83 |
Al-Tech Associates, LLC
Top agencies
|
$27,656 | ||
| 84 | $27,320 | |||
| 85 |
Mayointhemix LLC
Top agencies
|
$26,865 | ||
| 86 |
Galvanizers Inc.
Top agencies
|
$26,772 | ||
| 87 |
Govage, Inc.
Top agencies
|
$26,250 | ||
| 88 | $26,150 | |||
| 89 |
Haltec Corp
Top agencies
|
$25,134 | ||
| 90 |
Aereos, LLC
Top agencies
|
$25,091 | ||
| 91 |
W.w. Grainger, Inc.
Top agencies
|
$24,670 | ||
| 92 |
Spaires Inc.
Top agencies
|
$24,558 | ||
| 93 |
MTC Engineering, LLC
Top agencies
|
$23,460 | ||
| 94 | $22,458 | |||
| 95 |
Phoenix Trading Inc.
Top agencies
|
$22,433 | ||
| 96 |
TNL Sales LLC
Top agencies
|
$21,325 | ||
| 97 |
Brown Helicopter, Inc.
Top agencies
|
$20,222 | ||
| 98 |
Capy Machine Shop Inc.
Top agencies
|
$19,893 | ||
| 99 |
Mitsuwa Sangyo KK
Top agencies
|
$19,821 | ||
| 100 |
STS Distribution Solutions, LLC
Top agencies
|
$19,569 |
Show 75 more
100 of 237 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 33121
| Code | Net obligations | Largest contractor |
|---|---|---|
| 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel | $16,659,299 | Centroid, Inc. |
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $18.8 million obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 NAICS 33121 contractors in Aug 2025–Jul 2026?
1. Centroid, Inc. ($3.96M), 2. Aviator Systems Inc. ($1.38M), 3. Rudy Iii, Ernest ($1.23M), 4. Bb&G Enterprises Inc. ($1.11M), 5. JBL System Solutions LLC ($718K), 6. Sarco Inc. ($462K), 7. Argo Turboserve Corporation ($434K), 8. Hoopoe Labs Inc. ($350K), 9. AB Group Inc. ($340K), 10. Wickcraft Company, Inc. ($320K).
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