Top 100 Contractors in PSC J052: Maintenance, Repair and Rebuilding of Equipment: Measuring Tool, 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 PSC J052: Maintenance, Repair and Rebuilding of Equipment: Measuring Tool, FY2025.

The top 10 won 87% of PSC J052 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$71,747,250 Net of deobligations, by contracts coded PSC J052
Contractors
122 Parent companies with an obligation
Largest contractor
Calista Corp $27.3 million, 37.4% 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 $27,310,133
Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2023, #6 in FY2024 and #1 in FY2025; new, not ranked in Aug 2024–Jul 2025.
2 $16,772,363
Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3 $5,057,368
Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
4 $4,156,950
Rank history: #6 in FY2021, #5 in FY2022, #6 in FY2023, #64 in FY2024 and #6 in FY2025; up 1 since Aug 2024–Jul 2025.
5 $3,408,352
Rank history: #4 in FY2021, #4 in FY2022, #5 in FY2023, #4 in FY2024 and #3 in FY2025; down 2 since Aug 2024–Jul 2025.
6
KBR Wyle Services LLC
$2,454,125
Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #7 in FY2025; up 1 since Aug 2024–Jul 2025.
7 $1,920,832
Rank history: #7 in FY2021, #7 in FY2022, #7 in FY2023, #5 in FY2024 and #5 in FY2025; down 1 since Aug 2024–Jul 2025.
8 $814,801
Rank history: #8 in FY2021, #11 in FY2022, #10 in FY2023, #11 in FY2024 and #11 in FY2025; up 2 since Aug 2024–Jul 2025.
9
Blade Diagnostics Corporation
$736,479
Rank history: #15 in FY2021, #9 in FY2022, #15 in FY2023, #13 in FY2024 and #13 in FY2025; up 3 since Aug 2024–Jul 2025.
10 $724,562
Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11 $707,290
Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; unchanged since Aug 2024–Jul 2025.
12 $668,523
Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; down 3 since Aug 2024–Jul 2025.
13 $662,202
Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; down 5 since Aug 2024–Jul 2025.
14 $526,583
Rank history: #9 in FY2021, #13 in FY2022, #21 in FY2023, #14 in FY2024 and #42 in FY2025; up 29 since Aug 2024–Jul 2025.
15 $504,957
Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #77 in FY2025; down 2 since Aug 2024–Jul 2025.
16 $492,816
Rank history: #40 in FY2021, #46 in FY2022, #13 in FY2023, #15 in FY2024 and #18 in FY2025; up 2 since Aug 2024–Jul 2025.
17 $433,835
Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and #16 in FY2025; unchanged since Aug 2024–Jul 2025.
18 $388,264
Rank history: not on the FY2021–FY2022 lists, #11 in FY2023, #17 in FY2024 and #14 in FY2025; down 3 since Aug 2024–Jul 2025.
19 $373,984
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20 $370,191
Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; down 4 since Aug 2024–Jul 2025.
21
Radiation Detection Services Inc
$288,600
Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22 $231,078
Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23 $173,201
Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #32 in FY2025; up 18 since Aug 2024–Jul 2025.
24
Detect Inc.
$156,917
Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #25 in FY2024 and #27 in FY2025; down 5 since Aug 2024–Jul 2025.
25 $148,450
Rank history: #12 in FY2021, not on the FY2022–FY2023 lists, #27 in FY2024 and #28 in FY2025; up 3 since Aug 2024–Jul 2025.
26
Cobham Mission Systems Orchard Park Inc. Through Mission Systems Orchard Park Inc.
$142,438
Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 4 since Aug 2024–Jul 2025.
27 $137,475
Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; down 1 since Aug 2024–Jul 2025.
28
Danaher Corporation 2 awardees, including Sea-Bird Electronics, Inc. and Beckman Coulter, Inc.
$120,305
Rank history: #17 in FY2021, #30 in FY2022, #77 in FY2023, #22 in FY2024 and #26 in FY2025; down 7 since Aug 2024–Jul 2025.
29 $104,063
Rank history: not on the FY2021–FY2022 lists, #22 in FY2023, #16 in FY2024 and #15 in FY2025; down 15 since Aug 2024–Jul 2025.
30 $103,671
Rank history: #50 in FY2021, #66 in FY2022, #66 in FY2023, #73 in FY2024 and #22 in FY2025; up 88 since Aug 2024–Jul 2025.
31 $92,400
Rank history: #14 in FY2021, #24 in FY2022, #28 in FY2023, #20 in FY2024 and #37 in FY2025; up 6 since Aug 2024–Jul 2025.
32 $90,046
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33 $89,306
Rank history: #28 in FY2021, #31 in FY2022, #37 in FY2023, #38 in FY2024 and #36 in FY2025; up 5 since Aug 2024–Jul 2025.
34
Mirion Technologies (Canberra), Inc.
$76,157
Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35 $73,495
Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #38 in FY2025; up 26 since Aug 2024–Jul 2025.
36
Nikon Metrology Inc Through LK Metrology Incorporated
$72,500
Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, #36 in FY2024 and #47 in FY2025; down 7 since Aug 2024–Jul 2025.
37 $69,337
Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 5 since Aug 2024–Jul 2025.
38
Coast to Coast Calibrations Inc.
$65,859
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39 $63,738
Rank history: #64 in FY2021, #60 in FY2022, #90 in FY2023, #77 in FY2024 and #44 in FY2025; up 5 since Aug 2024–Jul 2025.
40 $51,312
Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; up 9 since Aug 2024–Jul 2025.
41
Phillips Scales LLC
$51,031
Rank history: not on the FY2021–FY2022 lists, #59 in FY2023, #98 in FY2024 and #63 in FY2025; up 33 since Aug 2024–Jul 2025.
42 $50,906
Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43 $50,388
Rank history: not on the FY2021–FY2022 lists, #44 in FY2023, #50 in FY2024 and #50 in FY2025; up 7 since Aug 2024–Jul 2025.
44 $48,280
Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #52 in FY2025; up 8 since Aug 2024–Jul 2025.
45 $47,637
Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #51 in FY2025; up 6 since Aug 2024–Jul 2025.
46
AGFA-GEVAERT Through Agfa US Corp
$44,581
Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 49 since Aug 2024–Jul 2025.
47 $41,859
Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
48 $41,753
Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
49 $41,013
Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50 $35,714
Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #85 in FY2025; up 60 since Aug 2024–Jul 2025.
51
Roper Technologies Inc. Through Struers Inc.
$33,415
Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #65 in FY2025; up 16 since Aug 2024–Jul 2025.
52
Mettler-Toledo International Inc. Through Mettler-Toledo LLC
$33,244
Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 87 since Aug 2024–Jul 2025.
53 $30,000
Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54 $29,538
Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #70 in FY2024 and #61 in FY2025; up 12 since Aug 2024–Jul 2025.
55 $28,688
Rank history: not on the FY2021–FY2022 lists, #63 in FY2023, not on the FY2024 list and #55 in FY2025; up 33 since Aug 2024–Jul 2025.
56 $28,055
Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
57 $27,600
Rank history: #68 in FY2021, #75 in FY2022, #88 in FY2023, #91 in FY2024 and #68 in FY2025; up 14 since Aug 2024–Jul 2025.
58 $27,300
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59 $26,595
Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; down 5 since Aug 2024–Jul 2025.
60 $26,331
Rank history: not on the FY2021 list, #74 in FY2022, #83 in FY2023, #85 in FY2024 and #78 in FY2025; up 24 since Aug 2024–Jul 2025.
61 $25,421
Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 18 since Aug 2024–Jul 2025.
62 $25,230
Rank history: #91 in FY2021, #96 in FY2022, #71 in FY2023, #83 in FY2024 and #72 in FY2025; up 14 since Aug 2024–Jul 2025.
63
Steris Corporation
$25,084
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64 $23,640
Rank history: #59 in FY2021, #70 in FY2022, #74 in FY2023, #75 in FY2024 and #74 in FY2025; up 14 since Aug 2024–Jul 2025.
65 $23,220
Rank history: not on the FY2021–FY2025 lists; up 15 since Aug 2024–Jul 2025.
66 $22,738
Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
67 $22,392
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68 $22,000
Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #80 in FY2025; up 17 since Aug 2024–Jul 2025.
69 $20,868
Rank history: not on the FY2021–FY2025 lists; up 45 since Aug 2024–Jul 2025.
70 $20,239
Rank history: not on the FY2021–FY2022 lists, #55 in FY2023, #65 in FY2024 and #64 in FY2025; down 5 since Aug 2024–Jul 2025.
71 $18,966
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72 $18,750
Rank history: #76 in FY2021, #64 in FY2022, #72 in FY2023, #72 in FY2024 and not on the FY2025 list; up 1 since Aug 2024–Jul 2025.
73 $17,730
Rank history: #77 in FY2021, #87 in FY2022, #95 in FY2023, #95 in FY2024 and #88 in FY2025; up 19 since Aug 2024–Jul 2025.
74 $17,540
Rank history: #78 in FY2021, not on the FY2022 list, #91 in FY2023, #93 in FY2024 and #86 in FY2025; up 15 since Aug 2024–Jul 2025.
75 $16,900
Rank history: not on the FY2021–FY2023 lists, #90 in FY2024 and not on the FY2025 list; up 62 since Aug 2024–Jul 2025.
76 $16,770
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77 $16,177
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78 $15,880
Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 13 since Aug 2024–Jul 2025.
79
Oerlikon Metco US Inc.
$15,410
Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and not on the FY2025 list; up 40 since Aug 2024–Jul 2025.
80 $15,363
Rank history: #92 in FY2021, not on the FY2022–FY2024 lists and #35 in FY2025; down 44 since Aug 2024–Jul 2025.
81 $14,545
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82 $14,400
Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 18 since Aug 2024–Jul 2025.
83 $13,557
Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
84 $13,500
Rank history: not on the FY2021 list, #98 in FY2022, not on the FY2023–FY2024 lists and #95 in FY2025; up 14 since Aug 2024–Jul 2025.
85 $13,175
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86
Tyco Fire Products LP Through Johnson Controls, Inc.
$12,005
Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
87 $11,940
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88 $11,088
Rank history: not on the FY2021 list, #99 in FY2022, #62 in FY2023, not on the FY2024 list and #92 in FY2025; up 6 since Aug 2024–Jul 2025.
89 $10,558
Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #84 in FY2025; down 7 since Aug 2024–Jul 2025.
90 $10,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91 $9,600
Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 52 since Aug 2024–Jul 2025.
92 $9,100
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93 $8,975
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94 $8,239
Rank history: #98 in FY2021, not on the FY2022–FY2023 lists, #68 in FY2024 and not on the FY2025 list; down 26 since Aug 2024–Jul 2025.
95 $7,950
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96 $7,860
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97 $7,800
Rank history: not on the FY2021–FY2025 lists; up 27 since Aug 2024–Jul 2025.
98 $7,580
Rank history: not on the FY2021–FY2025 lists; down 1 since Aug 2024–Jul 2025.
99 $7,285
Rank history: #99 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100 $7,188
Rank history: not on the FY2021–FY2025 lists; up 8 since Aug 2024–Jul 2025.
Show 75 more

100 of 122 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 $73.1 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 PSC J052 contractors in Aug 2025–Jul 2026?

1. Calista Corp ($27.3M), 2. Apro International, Inc. ($16.8M), 3. Goldbelt, Incorporated ($5.06M), 4. Science & Management Resources Inc. ($4.16M), 5. Mesotech International, Inc. ($3.41M), 6. KBR Wyle Services LLC ($2.45M), 7. Haight Bey & Associates LLC ($1.92M), 8. Teradyne Inc. ($815K), 9. Blade Diagnostics Corporation ($736K), 10. The Pennsylvania State University ($725K).

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