Top 28 Contractors in PSC H335: Inspection and Laboratory Services (except medical/dental): Service and Trade Equipment, Jul 2025–Jun 2026

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 66% of PSC H335 contract dollars from July 2025 through June 2026

Ranking facts

Contract obligations
$633,824 Net of deobligations, by contracts coded PSC H335
Contractors
30 Parent companies with an obligation
Largest contractor
Rescue One Training for Life Inc. $108 thousand, 14.5% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 28 rows as CSV

Full ranking

Rank Contractor Net obligations Share Trend
1 $107,848
Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; up 18 since Jul 2024–Jun 2025.
2 $62,721
Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and #12 in FY2025; up 9 since Jul 2024–Jun 2025.
3 $49,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
4
Valhalla Engineering Group LLC
$47,436
Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and #2 in FY2025; down 2 since Jul 2024–Jun 2025.
5 $46,750
Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Jul 2024–Jun 2025.
6 $42,917
Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and #13 in FY2025; up 8 since Jul 2024–Jun 2025.
7
Stenstrom Companies Ltd. Through Stenstrom Petroleum Services, Inc.
$42,195
Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and #4 in FY2025; new, not ranked in Jul 2024–Jun 2025.
8 $32,210
Rank history: not on the FY2021–FY2022 lists, #8 in FY2024 and #7 in FY2025; down 2 since Jul 2024–Jun 2025.
9
Midwest Electro-Tech Corp
$31,344
Rank history: not on the FY2021–FY2022 lists, #18 in FY2024 and #14 in FY2025; up 6 since Jul 2024–Jun 2025.
10 $26,634
Rank history: not on the FY2021 list, #8 in FY2022, #12 in FY2024 and #10 in FY2025; down 3 since Jul 2024–Jun 2025.
11 $25,487
Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and #9 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12 $25,044
Rank history: not on the FY2021–FY2022 lists, #14 in FY2024 and #11 in FY2025; down 4 since Jul 2024–Jun 2025.
13
Otis Elevator Company
$21,536
Rank history: not on the FY2021–FY2022 lists, #17 in FY2024 and #6 in FY2025; down 8 since Jul 2024–Jun 2025.
14 $18,797
Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Jul 2024–Jun 2025.
15 $15,200
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
16 $14,584
Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; up 1 since Jul 2024–Jun 2025.
17 $11,950
Rank history: #2 in FY2021, not on the FY2022 list, #16 in FY2024 and #19 in FY2025; down 13 since Jul 2024–Jun 2025.
18 $11,260
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
19 $9,625
Rank history: not on the FY2021 list, #15 in FY2022, not on the FY2024 list and #22 in FY2025; up 1 since Jul 2024–Jun 2025.
20 $9,200
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
21 $9,098
Rank history: not on the FY2021 list, #18 in FY2022, not on the FY2024 list and #25 in FY2025; up 1 since Jul 2024–Jun 2025.
22 $8,780
Rank history: not on the FY2021 list, #23 in FY2022, not on the FY2024 list and #24 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23 $7,386
Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; down 10 since Jul 2024–Jun 2025.
24 $6,300
Rank history: not on the FY2021–FY2022 lists, #3 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
25
Boiler Supply Company Inc
$5,487
Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and not on the FY2025 list; unchanged since Jul 2024–Jun 2025.
26 $4,631
Rank history: #21 in FY2021, #21 in FY2022, #27 in FY2024 and #30 in FY2025; up 1 since Jul 2024–Jun 2025.
27 $4,100
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
28 $1,900
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
Show 3 more

28 of 30 contractors listed here. See the rest on GovTribe.

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 $745 thousand 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. 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 Jul 2024–Jun 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 PSC H335 contractors in Jul 2025–Jun 2026?

1. Rescue One Training for Life Inc. ($108K), 2. National Elevator Inspection Services, Inc. ($62.7K), 3. New Age Elevator Company, LLC ($49K), 4. Valhalla Engineering Group LLC ($47.4K), 5. Brown Point Facility Management Solutions, LLC ($46.8K), 6. Minnesota Elevator Inc. ($42.9K), 7. Stenstrom Companies Ltd. ($42.2K), 8. Stenstrom Protanic, LLC ($32.2K), 9. Midwest Electro-Tech Corp ($31.3K), 10. Fluid Solutions LLC ($26.6K).

On GovTribe

Research every contractor on this list

  • Every contract, task order and IDV they hold
  • Their subsidiaries, teammates and competitors
  • Open opportunities they're positioned for
  • Alerts when they win new work