Top 100 Contractors in NAICS 621999: All Other Miscellaneous Ambulatory Health Care Services, FY2025

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

The top 10 won 46% of FY2025 NAICS 621999 contract dollars

Ranking facts

Contract obligations
$335,887,022 Net of deobligations, by contracts coded NAICS 621999
Contractors
250 Parent companies with an obligation
Largest contractor
Acuity-Chs, LLC $36.2 million, 7.1% 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 $36,151,495
Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; up 1 since FY2024.
2 $35,543,611
Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 24 since FY2024.
3 $34,419,922
Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; up 25 since FY2024.
4 $25,826,555
Rank history: #7 in FY2021, #6 in FY2022, #6 in FY2023 and #3 in FY2024; down 1 since FY2024.
5 $22,638,843
Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; up 25 since FY2024.
6 $17,404,456
Rank history: not on the FY2021–FY2024 lists; up 132 since FY2024.
7 $16,279,620
Rank history: #6 in FY2021, #9 in FY2022, #10 in FY2023 and #5 in FY2024; down 2 since FY2024.
8 $16,277,945
Rank history: #1 in FY2021, #4 in FY2022, #1 in FY2023 and #1 in FY2024; down 7 since FY2024.
9 $14,675,605
Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #11 in FY2024; up 2 since FY2024.
10
Dilligas Corp
$13,613,226
Rank history: #36 in FY2021, #12 in FY2022, #7 in FY2023 and #12 in FY2024; up 2 since FY2024.
11 $13,551,934
Rank history: #16 in FY2021, #15 in FY2022, #12 in FY2023 and #7 in FY2024; down 4 since FY2024.
12 $12,397,727
Rank history: not on the FY2021 list, #38 in FY2022, not on the FY2023 list and #8 in FY2024; down 4 since FY2024.
13 $11,751,750
Rank history: #11 in FY2021, #17 in FY2022, #8 in FY2023 and #6 in FY2024; down 7 since FY2024.
14 $10,223,191
Rank history: #31 in FY2021, #36 in FY2022, #31 in FY2023 and #13 in FY2024; down 1 since FY2024.
15 $9,583,404
Rank history: #13 in FY2021, #25 in FY2022, #16 in FY2023 and #10 in FY2024; down 5 since FY2024.
16 $9,469,474
Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 17 since FY2024.
17 $8,451,240
Rank history: #24 in FY2021, #13 in FY2022, #15 in FY2023 and #84 in FY2024; up 67 since FY2024.
18 $8,370,366
Rank history: #34 in FY2021, #28 in FY2022, #24 in FY2023 and #15 in FY2024; down 3 since FY2024.
19 $7,039,209
Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 10 since FY2024.
20 $5,792,145
Rank history: #17 in FY2021, #19 in FY2022, #9 in FY2023 and #17 in FY2024; down 3 since FY2024.
21 $5,515,303
Rank history: #18 in FY2021, #26 in FY2022, #23 in FY2023 and #19 in FY2024; down 2 since FY2024.
22
Caban Resources LLC
$5,417,147
Rank history: #37 in FY2021, #35 in FY2022, #19 in FY2023 and #20 in FY2024; down 2 since FY2024.
23 $5,155,350
Rank history: not on the FY2021–FY2024 lists; up 187 since FY2024.
24 $4,727,768
Rank history: #62 in FY2021, #65 in FY2022, #22 in FY2023 and #21 in FY2024; down 3 since FY2024.
25
Reef Systems Corp
$4,602,142
Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 12 since FY2024.
26
American Indian Health & Services Corporation
$3,810,866
Rank history: not on the FY2021–FY2024 lists; up 100 since FY2024.
27 $3,254,198
Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 16 since FY2024.
28
Distinctive Spectrum Healthcare Solutions JV LLC
$3,251,789
Rank history: #20 in FY2021, #20 in FY2022, #18 in FY2023 and #27 in FY2024; down 1 since FY2024.
29 $2,973,809
Rank history: #14 in FY2021, #10 in FY2022, #17 in FY2023 and #23 in FY2024; down 6 since FY2024.
30 $2,902,390
Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 17 since FY2024.
31 $2,605,000
Rank history: not on the FY2021–FY2024 lists; new.
32 $2,593,834
Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 30 since FY2024.
33 $2,543,023
Rank history: #30 in FY2021, #40 in FY2022, #34 in FY2023 and #36 in FY2024; up 3 since FY2024.
34 $2,408,191
Rank history: #27 in FY2021, #34 in FY2022, #30 in FY2023 and #34 in FY2024; unchanged since FY2024.
35 $2,204,508
Rank history: #23 in FY2021, #24 in FY2022, #25 in FY2023 and #25 in FY2024; down 10 since FY2024.
36 $2,045,051
Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 3 since FY2024.
37 $1,949,777
Rank history: #33 in FY2021, #42 in FY2022, #28 in FY2023 and #50 in FY2024; up 13 since FY2024.
38 $1,942,421
Rank history: #44 in FY2021, #46 in FY2022, #37 in FY2023 and #40 in FY2024; up 2 since FY2024.
39
Native American Development Corp
$1,824,429
Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #41 in FY2024; up 2 since FY2024.
40 $1,770,854
Rank history: not on the FY2021–FY2024 lists; new.
41
Metropolitan Medical LLC
$1,750,610
Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 1 since FY2024.
42 $1,736,972
Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; down 10 since FY2024.
43 $1,667,849
Rank history: #59 in FY2021, #18 in FY2022, #45 in FY2023 and #48 in FY2024; up 5 since FY2024.
44 $1,663,977
Rank history: not on the FY2021 list, #32 in FY2022, #43 in FY2023 and #45 in FY2024; up 1 since FY2024.
45 $1,650,779
Rank history: #10 in FY2021, #45 in FY2022, #38 in FY2023 and #44 in FY2024; down 1 since FY2024.
46 $1,634,684
Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #35 in FY2024; down 11 since FY2024.
47 $1,577,524
Rank history: not on the FY2021–FY2024 lists; new.
48 $1,552,877
Rank history: not on the FY2021 list, #48 in FY2022, #50 in FY2023 and #53 in FY2024; up 5 since FY2024.
49 $1,542,391
Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list and #65 in FY2024; up 16 since FY2024.
50 $1,503,025
Rank history: #15 in FY2021, #52 in FY2022, #40 in FY2023 and #52 in FY2024; up 2 since FY2024.
51 $1,501,312
Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; up 8 since FY2024.
52 $1,499,958
Rank history: not on the FY2021–FY2024 lists; new.
53 $1,399,084
Rank history: not on the FY2021 list, #67 in FY2022, not on the FY2023 list and #46 in FY2024; down 7 since FY2024.
54 $1,321,875
Rank history: #54 in FY2021, #50 in FY2022, not on the FY2023 list and #56 in FY2024; up 2 since FY2024.
55 $1,256,932
Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2024 list; returned.
56 $1,236,569
Rank history: not on the FY2021–FY2024 lists; new.
57 $1,226,355
Rank history: not on the FY2021–FY2024 lists; new.
58 $1,207,380
Rank history: #63 in FY2021, #78 in FY2022, #65 in FY2023 and #63 in FY2024; up 5 since FY2024.
59
Capital MED Group LLC
$1,192,391
Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #73 in FY2024; up 14 since FY2024.
60 $1,177,818
Rank history: not on the FY2021–FY2024 lists; up 185 since FY2024.
61 $987,905
Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; down 7 since FY2024.
62 $980,700
Rank history: #2 in FY2021, #37 in FY2022, #73 in FY2023 and #88 in FY2024; up 26 since FY2024.
63 $947,581
Rank history: not on the FY2021–FY2024 lists; new.
64 $892,856
Rank history: #76 in FY2021, #66 in FY2022, #55 in FY2023 and #67 in FY2024; up 3 since FY2024.
65 $877,465
Rank history: not on the FY2021 list, #73 in FY2022, #67 in FY2023 and #60 in FY2024; down 5 since FY2024.
66 $854,600
Rank history: not on the FY2021–FY2024 lists; up 85 since FY2024.
67 $839,868
Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; up 3 since FY2024.
68 $829,994
Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
69 $829,027
Rank history: not on the FY2021–FY2024 lists; new.
70 $818,749
Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 27 since FY2024.
71 $728,712
Rank history: not on the FY2021–FY2024 lists; new.
72 $717,752
Rank history: not on the FY2021 list, #88 in FY2022, #71 in FY2023 and #72 in FY2024; unchanged since FY2024.
73 $713,278
Rank history: not on the FY2021–FY2024 lists; up 69 since FY2024.
74 $703,876
Rank history: not on the FY2021 list, #94 in FY2022, #92 in FY2023 and #75 in FY2024; up 1 since FY2024.
75 $692,878
Rank history: not on the FY2021 list, #71 in FY2022, #76 in FY2023 and #81 in FY2024; up 6 since FY2024.
76 $691,112
Rank history: #46 in FY2021, #39 in FY2022, #41 in FY2023 and #61 in FY2024; down 15 since FY2024.
77 $665,907
Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; down 8 since FY2024.
78 $659,539
Rank history: not on the FY2021–FY2024 lists; new.
79 $650,000
Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; down 13 since FY2024.
80 $632,569
Rank history: #22 in FY2021, #29 in FY2022, #27 in FY2023 and #22 in FY2024; down 58 since FY2024.
81 $627,052
Rank history: not on the FY2021–FY2024 lists; new.
82 $619,847
Rank history: not on the FY2021–FY2024 lists; new.
83 $551,328
Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
84
Professional Health Services Inc
$518,579
Rank history: not on the FY2021–FY2024 lists; up 17 since FY2024.
85 $512,323
Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 11 since FY2024.
86
Appddictionstudio Limited Liability Company
$506,456
Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; down 4 since FY2024.
87 $498,574
Rank history: not on the FY2021–FY2024 lists; up 24 since FY2024.
88 $496,086
Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
89 $471,434
Rank history: #84 in FY2021, not on the FY2022 list, #72 in FY2023 and #91 in FY2024; up 2 since FY2024.
90 $465,325
Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 3 since FY2024.
91 $464,392
Rank history: #52 in FY2021, not on the FY2022 list, #84 in FY2023 and not on the FY2024 list; up 89 since FY2024.
92 $459,131
Rank history: #82 in FY2021, not on the FY2022–FY2023 lists and #94 in FY2024; up 2 since FY2024.
93 $457,951
Rank history: not on the FY2021–FY2024 lists; new.
94 $454,676
Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #89 in FY2024; down 5 since FY2024.
95 $452,036
Rank history: #40 in FY2021, #61 in FY2022, not on the FY2023 list and #95 in FY2024; unchanged since FY2024.
96 $445,463
Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; down 9 since FY2024.
97 $423,566
Rank history: not on the FY2021–FY2024 lists; new.
98 $415,126
Rank history: not on the FY2021–FY2024 lists; new.
99 $409,615
Rank history: not on the FY2021–FY2024 lists; up 3 since FY2024.
100 $403,040
Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and not on the FY2024 list; up 44 since FY2024.
Show 75 more

100 of 250 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 $510 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 NAICS 621999 contractors in FY2025?

1. Acuity-Chs, LLC ($36.2M), 2. The Arora Group, Inc. ($35.5M), 3. Amergis Healthcare Staffing Inc. ($34.4M), 4. Servefed Inc. ($25.8M), 5. Ingenesis Inc. ($22.6M), 6. LMR Technical Group LLC ($17.4M), 7. Cognito Systems LLC ($16.3M), 8. STG International, Inc. ($16.3M), 9. Dawson Cms, LLC ($14.7M), 10. Dilligas Corp ($13.6M).

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