Top 100 Contractors in PSC 6635: Physical Properties Testing and Inspection, FY2025

Name: Top 100 Contractors in PSC 6635: Physical Properties Testing and Inspection, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 53% of FY2025 PSC 6635 contract dollars

Contract obligations: $68,419,273 Net of deobligations, by contracts coded PSC 6635
Contractors: 279 Parent companies with an obligation
Largest contractor: NDT Solutions, LLC $7.29 million, 10.4% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	NDT Solutions, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$7,289,402	10.4%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list and #2 in FY2024; up 1 since FY2024.
2	V.j. Technologies, Inc. Top agencies Army (Department of the Army)	$6,480,515	9.2%	Rank history: #6 in FY2021, #53 in FY2022, #6 in FY2023 and #12 in FY2024; up 10 since FY2024.
3	Hadland Imaging LLC Top agencies USAF (Department of the Air Force)	$5,332,026	7.6%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; up 1 since FY2024.
4	Illinois Tool Works Inc. 4 awardees, including North Star Imaging Incorporated and QSA Global Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,494,752	5.0%	Rank history: #35 in FY2021, #11 in FY2022, #7 in FY2023 and #3 in FY2024; down 1 since FY2024.
5	Jess W. Jackson and Associates, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,754,027	3.9%	Rank history: #7 in FY2021, #5 in FY2022, #11 in FY2023 and #10 in FY2024; up 5 since FY2024.
6	Atap Inc. Top agencies USAF (Department of the Air Force)	$2,659,818	3.8%	Rank history: not on the FY2021–FY2024 lists; new.
7	Habco Industries LLC Top agencies Navy (Department of the Navy)	$2,326,900	3.3%	Rank history: not on the FY2021–FY2024 lists; new.
8	Agilent Technologies, Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$2,323,660	3.3%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 60 since FY2024.
9	Wabtec Inspection Technologies, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,228,974	3.2%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 5 since FY2024.
10	Viken Detection Corporation Top agencies DOS (Department of State)	$2,019,100	2.9%	Rank history: #15 in FY2021, #12 in FY2022, not on the FY2023 list and #20 in FY2024; up 10 since FY2024.
11	L3Harris Technologies, Inc. Through Fisica Applied Technologies, Inc. Top agencies WHS (DOD Washington Headquarters Service) Army (Department of the Army)	$1,771,910	2.5%	Rank history: #14 in FY2021, #37 in FY2022, #12 in FY2023 and #6 in FY2024; down 5 since FY2024.
12	Federal Resources Supply Company, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,536,651	2.2%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; down 1 since FY2024.
13	Technology for Energy Corp Top agencies Navy (Department of the Navy)	$1,310,300	1.9%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and not on the FY2024 list; returned.
14	Marietta Nondestructive Testing LLC Top agencies Navy (Department of the Navy)	$1,304,216	1.9%	Rank history: #42 in FY2021, #8 in FY2022, #15 in FY2023 and #9 in FY2024; down 5 since FY2024.
15	Soluna Holdings Inc. Through MTI Instruments Inc. Top agencies USAF (Department of the Air Force)	$1,114,748	1.6%	Rank history: not on the FY2021–FY2024 lists; up 120 since FY2024.
16	United Western Technologies Corp. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,025,041	1.5%	Rank history: #61 in FY2021, #58 in FY2022, #9 in FY2023 and #21 in FY2024; up 5 since FY2024.
17	The Modal Shop, Inc. Top agencies Navy (Department of the Navy)	$798,000	1.1%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 73 since FY2024.
18	Waygate Technologies USA LP Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$773,870	1.1%	Rank history: not on the FY2021–FY2024 lists; up 277 since FY2024.
19	A.k.o. Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$758,525	1.1%	Rank history: not on the FY2021 list, #48 in FY2022, #38 in FY2023 and #26 in FY2024; up 7 since FY2024.
20	Expotech U.s.a., Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$691,923	1.0%	Rank history: #30 in FY2021, #23 in FY2022, #58 in FY2023 and #8 in FY2024; down 12 since FY2024.
21	Phillystran Inc Through Carestream Health, Inc. Top agencies USAF (Department of the Air Force)	$630,603	0.9%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 2 since FY2024.
22	Lafayette Instrument Company, LLC Top agencies Navy (Department of the Navy) DCSA (Defense Counterintelligence and Security Agency)	$581,756	0.8%	Rank history: #50 in FY2021 and not on the FY2022–FY2024 lists; up 79 since FY2024.
23	Rapiscan Systems Inc Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$576,344	0.8%	Rank history: not on the FY2021–FY2024 lists; up 96 since FY2024.
24	PPD Development LP 2 awardees, including Thermo Electron North America LLC and Thermo Scientific Portable Analytical Instruments Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$524,657	0.7%	Rank history: not on the FY2021–FY2024 lists; up 127 since FY2024.
25	Newco Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$500,029	0.7%	Rank history: #31 in FY2021, #6 in FY2022, #28 in FY2023 and #24 in FY2024; down 1 since FY2024.
26	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$488,533	0.7%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 31 since FY2024.
27	Flawtech America, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$477,897	0.7%	Rank history: not on the FY2021–FY2024 lists; up 140 since FY2024.
28	Test Equipment Distributors LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$450,575	0.6%	Rank history: not on the FY2021–FY2024 lists; up 222 since FY2024.
29	Quality Equipment Distributors, Inc. Top agencies DLA (Defense Logistics Agency)	$443,587	0.6%	Rank history: not on the FY2021 list, #64 in FY2022, not on the FY2023 list and #74 in FY2024; up 45 since FY2024.
30	Femtotools AG Top agencies NASA (National Aeronautics and Space Administration)	$440,685	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
31	PH Tool, LLC Top agencies Navy (Department of the Navy)	$429,015	0.6%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2024; up 5 since FY2024.
32	Malvern Panalytical Inc. Top agencies DHS (Department of Homeland Security)	$408,211	0.6%	Rank history: not on the FY2021–FY2024 lists; up 107 since FY2024.
33	Psylotech, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$368,879	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
34	Mystaire Inc Top agencies DHS (Department of Homeland Security)	$363,616	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
35	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$359,153	0.5%	Rank history: not on the FY2021–FY2024 lists; up 207 since FY2024.
36	MPM Products, Inc. Top agencies Navy (Department of the Navy)	$317,093	0.5%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #45 in FY2024; up 9 since FY2024.
37	Aerofab NDT LLC Top agencies USAF (Department of the Air Force)	$309,078	0.4%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; up 34 since FY2024.
38	Gammon Technical Products Inc. Top agencies DLA (Defense Logistics Agency)	$299,616	0.4%	Rank history: #48 in FY2021, #20 in FY2022, #27 in FY2023 and #44 in FY2024; up 6 since FY2024.
39	Lake Shore Cryotronics, Inc. Top agencies Navy (Department of the Navy)	$290,848	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
40	Astrophysics Inc. Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury)	$274,540	0.4%	Rank history: #40 in FY2021, #94 in FY2022, #20 in FY2023 and #53 in FY2024; up 13 since FY2024.
41	E & S Industriebedarf GMBH Top agencies Army (Department of the Army)	$257,325	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
42	Okos Solutions LLC Top agencies USAF (Department of the Air Force)	$255,000	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
43	Leco Corp Top agencies Navy (Department of the Navy)	$249,999	0.4%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2024 list; returned.
44	TSI Incorporated Top agencies Navy (Department of the Navy)	$241,456	0.3%	Rank history: not on the FY2021–FY2024 lists; up 79 since FY2024.
45	Honeywell International Inc. Top agencies DLA (Defense Logistics Agency)	$238,209	0.3%	Rank history: #87 in FY2021, not on the FY2022–FY2023 lists and #69 in FY2024; up 24 since FY2024.
46	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$231,050	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
47	Laser Techniques Company, LLC Top agencies Navy (Department of the Navy)	$230,076	0.3%	Rank history: #68 in FY2021 and not on the FY2022–FY2024 lists; returned.
48	Midway Industrial Supply Inc. Top agencies DLA (Defense Logistics Agency)	$226,341	0.3%	Rank history: not on the FY2021–FY2024 lists; up 137 since FY2024.
49	Surface Measurement Systems Ltd North America Top agencies Army (Department of the Army)	$217,290	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	A.m.s. Network, LLC Top agencies DLA (Defense Logistics Agency)	$217,214	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
51	Ametek Inc. Through Spectro Scientific, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$211,867	0.3%	Rank history: #47 in FY2021, #39 in FY2022, #78 in FY2023 and #22 in FY2024; down 29 since FY2024.
52	Cenmed Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$207,820	0.3%	Rank history: not on the FY2021–FY2024 lists; up 179 since FY2024.
53	Varex Imaging Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$202,213	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	Arhab LLC Top agencies USAF (Department of the Air Force)	$200,440	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
55	RAD Source Technologies Inc. Top agencies DHS (Department of Homeland Security)	$197,900	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
56	Hyspex Inc. Top agencies Treasury (Department of the Treasury)	$186,365	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
57	K5 Defense LLC Top agencies DHS (Department of Homeland Security)	$182,832	0.3%	Rank history: not on the FY2021–FY2024 lists; up 131 since FY2024.
58	Global Digital Systems Limited Top agencies DOI (Department of the Interior)	$182,120	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
59	Innovatest USA Co Top agencies Navy (Department of the Navy)	$174,190	0.2%	Rank history: not on the FY2021 list, #85 in FY2022 and not on the FY2023–FY2024 lists; returned.
60	Plastometrex Usa, Inc. Top agencies Navy (Department of the Navy)	$160,187	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
61	Hudson Lab Automation, Inc. Top agencies Army (Department of the Army)	$156,500	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
62	Amphenol Corporation Through PCB Piezotronics, Inc. Top agencies Navy (Department of the Navy)	$156,039	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
63	Ufa, Inc. Top agencies USAF (Department of the Air Force)	$151,300	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
64	Government Scientific Source Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$150,386	0.2%	Rank history: #29 in FY2021, #52 in FY2022, #17 in FY2023 and #16 in FY2024; down 48 since FY2024.
65	Kodex, Inc. Top agencies USAF (Department of the Air Force)	$149,740	0.2%	Rank history: not on the FY2021 list, #54 in FY2022, not on the FY2023 list and #27 in FY2024; down 38 since FY2024.
66	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$149,211	0.2%	Rank history: #39 in FY2021 and not on the FY2022–FY2024 lists; up 77 since FY2024.
67	International Television Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$146,467	0.2%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
68	Tovey Engineering, Inc. Top agencies USAF (Department of the Air Force)	$144,440	0.2%	Rank history: not on the FY2021–FY2024 lists; up 41 since FY2024.
69	Fotronic Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$142,055	0.2%	Rank history: not on the FY2021–FY2024 lists; up 122 since FY2024.
70	Halliday Technologies Inc. Top agencies USAF (Department of the Air Force)	$140,345	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
71	Tinius Olsen Testing Machine Co Inc Top agencies Army (Department of the Army) Treasury (Department of the Treasury)	$139,249	0.2%	Rank history: not on the FY2021–FY2024 lists; up 196 since FY2024.
72	Foster & Freeman USA Inc. Top agencies DHS (Department of Homeland Security)	$139,004	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
73	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$137,781	0.2%	Rank history: not on the FY2021–FY2024 lists; up 76 since FY2024.
74	Executive Business Services Inc. Through Struers Inc. Top agencies Navy (Department of the Navy)	$137,072	0.2%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; down 45 since FY2024.
75	Biomomentum Inc. Top agencies Navy (Department of the Navy)	$136,751	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
76	Echo81 LLC Top agencies Army (Department of the Army)	$136,346	0.2%	Rank history: #10 in FY2021, #46 in FY2022 and not on the FY2023–FY2024 lists; returned.
77	Berg Engineering & Sales Co., Inc. Top agencies DLA (Defense Logistics Agency)	$130,357	0.2%	Rank history: not on the FY2021–FY2024 lists; up 191 since FY2024.
78	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$129,997	0.2%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; down 16 since FY2024.
79	Willrich Precision Instrument Company, Inc. Top agencies Army (Department of the Army)	$128,559	0.2%	Rank history: not on the FY2021 list, #42 in FY2022, #16 in FY2023 and #23 in FY2024; down 56 since FY2024.
80	Opti Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$125,562	0.2%	Rank history: #51 in FY2021, #57 in FY2022, not on the FY2023 list and #49 in FY2024; down 31 since FY2024.
81	Vexlum OY Top agencies Navy (Department of the Navy)	$123,500	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
82	S & K Federal Services LLC Top agencies USAF (Department of the Air Force)	$123,090	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
83	Govsmart, Inc. Top agencies Navy (Department of the Navy)	$119,530	0.2%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 10 since FY2024.
84	Techna NDT LLC Top agencies USAF (Department of the Air Force)	$119,160	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
85	B & H International LLC Top agencies Navy (Department of the Navy)	$116,565	0.2%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; down 60 since FY2024.
86	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$110,243	0.2%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
87	American Crane & Equipment Corp Top agencies Navy (Department of the Navy)	$109,938	0.2%	Rank history: not on the FY2021 list, #66 in FY2022, #52 in FY2023 and not on the FY2024 list; returned.
88	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$102,683	0.1%	Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
89	Dataphysics Instruments USA Corp. Top agencies Treasury (Department of the Treasury)	$102,574	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Vcloud GOV Inc. Top agencies Navy (Department of the Navy)	$102,319	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Raysecur Inc. Top agencies Army (Department of the Army)	$101,105	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	U S Analytical Solutions LLC Top agencies USAF (Department of the Air Force)	$99,119	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$94,674	0.1%	Rank history: not on the FY2021–FY2024 lists; up 13 since FY2024.
94	Bluefors Cryocooler Technologies Inc. Top agencies Navy (Department of the Navy)	$91,655	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Kijero, LLC Top agencies Navy (Department of the Navy)	$91,400	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Boneal, Incorporated Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$88,616	0.1%	Rank history: #34 in FY2021, not on the FY2022 list, #66 in FY2023 and not on the FY2024 list; up 16 since FY2024.
97	Govstrat Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$84,122	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Veyka Insaat Mimarlik Muhendislik Sanayi IC VE Dis Ticaret Anonim Sirketi Top agencies DOS (Department of State)	$78,775	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	NDT Supply.com, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$78,113	0.1%	Rank history: #54 in FY2021 and not on the FY2022–FY2024 lists; up 160 since FY2024.
100	The Boeing Company 2 awardees Top agencies DLA (Defense Logistics Agency)	$76,527	0.1%	Rank history: #8 in FY2021, #25 in FY2022, not on the FY2023 list and #82 in FY2024; down 18 since FY2024.

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100 of 279 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 $70.2 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. 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.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
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 6635 contractors in FY2025?

1. NDT Solutions, LLC ($7.29M), 2. V.j. Technologies, Inc. ($6.48M), 3. Hadland Imaging LLC ($5.33M), 4. Illinois Tool Works Inc. ($3.49M), 5. Jess W. Jackson and Associates, Inc. ($2.75M), 6. Atap Inc. ($2.66M), 7. Habco Industries LLC ($2.33M), 8. Agilent Technologies, Inc. ($2.32M), 9. Wabtec Inspection Technologies, Inc. ($2.23M), 10. Viken Detection Corporation ($2.02M).

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