Top 100 Contractors in PSC 6630: Chemical Analysis Instruments, FY2025

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

The top 10 won 73% of FY2025 PSC 6630 contract dollars

Ranking facts

Contract obligations
$212,962,568 Net of deobligations, by contracts coded PSC 6630
Contractors
249 Parent companies with an obligation
Largest contractor
D-2 Incorporated $40.8 million, 17.9% of obligations
Data as of

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 $40,812,125
Rank history: #74 in FY2021 and not on the FY2022–FY2024 lists; up 130 since FY2024.
2 $28,669,069
Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; up 2 since FY2024.
3 $24,391,592
Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #1 in FY2024; down 2 since FY2024.
4 $19,286,550
Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; up 3 since FY2024.
5
Kilgore Flares Company LLC Through Chemring Sensors and Electronic Systems, Inc.
$15,601,305
Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #3 in FY2024; down 2 since FY2024.
6 $10,545,715
Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 1 since FY2024.
7 $9,312,092
Rank history: #13 in FY2021, #17 in FY2022, #9 in FY2023 and #11 in FY2024; up 4 since FY2024.
8 $7,260,231
Rank history: not on the FY2021–FY2024 lists; new.
9 $6,699,561
Rank history: not on the FY2021–FY2024 lists; new.
10 $4,533,162
Rank history: #35 in FY2021, #11 in FY2022, #10 in FY2023 and #30 in FY2024; up 20 since FY2024.
11 $3,829,643
Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #29 in FY2024; up 18 since FY2024.
12 $3,475,721
Rank history: #17 in FY2021, #19 in FY2022, #33 in FY2023 and #31 in FY2024; up 19 since FY2024.
13 $2,652,376
Rank history: #1 in FY2021, #3 in FY2022, #1 in FY2023 and #2 in FY2024; down 11 since FY2024.
14 $2,592,559
Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; unchanged since FY2024.
15 $2,588,169
Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and #18 in FY2024; up 3 since FY2024.
16 $2,100,854
Rank history: not on the FY2021–FY2024 lists; new.
17 $1,430,616
Rank history: not on the FY2021–FY2024 lists; up 95 since FY2024.
18 $1,388,957
Rank history: #16 in FY2021, not on the FY2022 list, #30 in FY2023 and #28 in FY2024; up 10 since FY2024.
19 $1,271,913
Rank history: #44 in FY2021, #20 in FY2022, #20 in FY2023 and #23 in FY2024; up 4 since FY2024.
20 $1,144,840
Rank history: not on the FY2021–FY2023 lists and #52 in FY2024; up 32 since FY2024.
21 $868,177
Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; down 8 since FY2024.
22 $791,344
Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 5 since FY2024.
23 $733,408
Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 14 since FY2024.
24 $706,966
Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 38 since FY2024.
25 $694,598
Rank history: #31 in FY2021, #39 in FY2022, #98 in FY2023 and not on the FY2024 list; up 222 since FY2024.
26 $627,802
Rank history: not on the FY2021 list, #67 in FY2022, #38 in FY2023 and not on the FY2024 list; up 183 since FY2024.
27 $569,510
Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 45 since FY2024.
28 $566,556
Rank history: #22 in FY2021, #15 in FY2022, #44 in FY2023 and #16 in FY2024; down 12 since FY2024.
29 $490,105
Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 48 since FY2024.
30 $459,424
Rank history: not on the FY2021–FY2024 lists; new.
31 $446,839
Rank history: #48 in FY2021, #47 in FY2022, #70 in FY2023 and not on the FY2024 list; returned.
32 $438,690
Rank history: not on the FY2021–FY2024 lists; new.
33 $431,508
Rank history: #36 in FY2021, not on the FY2022 list, #99 in FY2023 and #69 in FY2024; up 36 since FY2024.
34 $408,304
Rank history: #39 in FY2021, #35 in FY2022, #61 in FY2023 and #53 in FY2024; up 19 since FY2024.
35 $401,561
Rank history: #25 in FY2021, #40 in FY2022, #40 in FY2023 and not on the FY2024 list; up 232 since FY2024.
36 $388,132
Rank history: not on the FY2021–FY2024 lists; new.
37 $380,799
Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 41 since FY2024.
38 $356,307
Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; down 16 since FY2024.
39 $354,643
Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 35 since FY2024.
40 $352,640
Rank history: #40 in FY2021, not on the FY2022–FY2023 lists and #73 in FY2024; up 33 since FY2024.
41 $343,000
Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #51 in FY2024; up 10 since FY2024.
42 $339,586
Rank history: not on the FY2021–FY2024 lists; up 202 since FY2024.
43 $319,415
Rank history: not on the FY2021–FY2024 lists; new.
44 $302,758
Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
45 $295,000
Rank history: not on the FY2021–FY2024 lists; new.
46 $287,000
Rank history: not on the FY2021–FY2024 lists; new.
47 $274,770
Rank history: not on the FY2021 list, #85 in FY2022, #96 in FY2023 and not on the FY2024 list; up 66 since FY2024.
48
Thermal Hazard Technology Inc.
$273,865
Rank history: not on the FY2021–FY2024 lists; new.
49 $266,595
Rank history: not on the FY2021–FY2024 lists; new.
50 $259,549
Rank history: not on the FY2021–FY2024 lists; new.
51 $247,833
Rank history: not on the FY2021–FY2024 lists; up 202 since FY2024.
52 $247,771
Rank history: not on the FY2021 list, #82 in FY2022, #32 in FY2023 and #42 in FY2024; down 10 since FY2024.
53 $245,843
Rank history: not on the FY2021–FY2024 lists; new.
54 $237,504
Rank history: not on the FY2021–FY2024 lists; new.
55 $232,573
Rank history: #32 in FY2021, not on the FY2022 list, #88 in FY2023 and not on the FY2024 list; up 60 since FY2024.
56 $232,152
Rank history: not on the FY2021–FY2024 lists; new.
57 $228,674
Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 3 since FY2024.
58 $228,465
Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and not on the FY2024 list; returned.
59 $222,964
Rank history: not on the FY2021–FY2024 lists; new.
60
Enviroflux LLC
$218,145
Rank history: not on the FY2021–FY2024 lists; new.
61 $203,272
Rank history: not on the FY2021–FY2024 lists; new.
62 $197,909
Rank history: #56 in FY2021, #50 in FY2022, #46 in FY2023 and not on the FY2024 list; up 72 since FY2024.
63 $197,580
Rank history: #53 in FY2021, not on the FY2022 list, #58 in FY2023 and #38 in FY2024; down 25 since FY2024.
64 $193,920
Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
65
Midland Scientific Inc.
$169,652
Rank history: not on the FY2021–FY2022 lists, #78 in FY2023 and not on the FY2024 list; up 74 since FY2024.
66 $164,122
Rank history: not on the FY2021–FY2024 lists; up 160 since FY2024.
67 $161,786
Rank history: #27 in FY2021, not on the FY2022–FY2023 lists and #91 in FY2024; up 24 since FY2024.
68 $160,869
Rank history: not on the FY2021–FY2024 lists; new.
69 $157,998
Rank history: not on the FY2021–FY2024 lists; new.
70 $151,927
Rank history: #83 in FY2021, not on the FY2022 list, #47 in FY2023 and #83 in FY2024; up 13 since FY2024.
71 $150,828
Rank history: not on the FY2021–FY2024 lists; new.
72 $150,609
Rank history: not on the FY2021–FY2024 lists; up 30 since FY2024.
73 $150,499
Rank history: not on the FY2021–FY2024 lists; new.
74 $147,369
Rank history: #86 in FY2021, not on the FY2022 list, #77 in FY2023 and not on the FY2024 list; up 33 since FY2024.
75 $144,700
Rank history: not on the FY2021–FY2024 lists; new.
76
RTX Corporation Through Hamilton Sundstrand Corporation
$143,441
Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 67 since FY2024.
77
Mettler-Toledo International Inc. 2 awardees, including Mettler-Toledo Autochem, Inc. and Mettler-Toledo LLC
$142,044
Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; down 51 since FY2024.
78 $140,847
Rank history: not on the FY2021–FY2024 lists; up 132 since FY2024.
79 $139,779
Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 6 since FY2024.
80 $131,662
Rank history: not on the FY2021–FY2024 lists; new.
81 $131,313
Rank history: not on the FY2021–FY2024 lists; new.
82 $129,000
Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024 list; returned.
83 $128,009
Rank history: not on the FY2021–FY2024 lists; new.
84 $122,111
Rank history: not on the FY2021–FY2024 lists; new.
85 $119,948
Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; down 73 since FY2024.
86 $117,212
Rank history: #89 in FY2021, #84 in FY2022 and not on the FY2023–FY2024 lists; up 49 since FY2024.
87 $116,000
Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; down 1 since FY2024.
88
Julabo USA Inc
$114,660
Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 45 since FY2024.
89 $114,316
Rank history: not on the FY2021–FY2024 lists; up 58 since FY2024.
90 $108,586
Rank history: not on the FY2021–FY2024 lists; new.
91 $108,458
Rank history: not on the FY2021–FY2024 lists; up 32 since FY2024.
92 $102,844
Rank history: #67 in FY2021 and not on the FY2022–FY2024 lists; up 70 since FY2024.
93
Tevet LLC
$98,921
Rank history: not on the FY2021–FY2024 lists; new.
94
Brinkmann Instruments Inc. 2 awardees, including USA Scientific, Inc.
$95,865
Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; down 18 since FY2024.
95 $93,431
Rank history: not on the FY2021–FY2024 lists; up 56 since FY2024.
96 $92,930
Rank history: not on the FY2021 list, #93 in FY2022, #63 in FY2023 and not on the FY2024 list; up 108 since FY2024.
97 $92,314
Rank history: not on the FY2021–FY2024 lists; up 128 since FY2024.
98 $91,080
Rank history: not on the FY2021–FY2024 lists; up 61 since FY2024.
99 $90,272
Rank history: not on the FY2021–FY2024 lists; new.
100
Phoenix Trading Inc.
$89,934
Rank history: not on the FY2021–FY2024 lists; up 166 since FY2024.
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100 of 249 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 $229 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 6630 contractors in FY2025?

1. D-2 Incorporated ($40.8M), 2. Beckman Coulter, Inc. ($28.7M), 3. Abbott Laboratories Inc. ($24.4M), 4. Roche Holdings Inc. ($19.3M), 5. Kilgore Flares Company LLC ($15.6M), 6. Siemens Corporation ($10.5M), 7. Government Scientific Source Inc. ($9.31M), 8. GTA Containers, LLC ($7.26M), 9. Scitech Services Inc. ($6.7M), 10. Federal Resources Supply Company, LLC ($4.53M).

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