Top 100 Contractors in PSC 7B21: IT and Telecom – Compute: Mainframe (Hardware and Perpetual License Software), 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 7B21: IT and Telecom – Compute: Mainframe (Hardware and Perpetual License Software), FY2025.

The top 10 won 55% of PSC 7B21 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$513,964,007 Net of deobligations, by contracts coded PSC 7B21
Contractors
230 Parent companies with an obligation
Largest contractor
Four LLC $67.8 million, 13.0% 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 $67,846,870
Rank history: #17 in FY2021, #60 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2 $54,683,994
Rank history: #4 in FY2021, #3 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3 $38,199,262
Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; up 7 since Aug 2024–Jul 2025.
4 $22,140,088
Rank history: #2 in FY2021, #2 in FY2022, #13 in FY2023, #11 in FY2024 and #11 in FY2025; up 17 since Aug 2024–Jul 2025.
5 $20,658,792
Rank history: #46 in FY2021, #7 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; down 1 since Aug 2024–Jul 2025.
6 $19,360,178
Rank history: not on the FY2021–FY2025 lists; up 251 since Aug 2024–Jul 2025.
7 $18,231,385
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
8 $16,427,656
Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 27 since Aug 2024–Jul 2025.
9 $15,523,513
Rank history: #6 in FY2021, #5 in FY2022, #73 in FY2023, #16 in FY2024 and #30 in FY2025; up 20 since Aug 2024–Jul 2025.
10 $14,384,755
Rank history: #23 in FY2021, #18 in FY2022, #11 in FY2023, #12 in FY2024 and #12 in FY2025; up 4 since Aug 2024–Jul 2025.
11 $13,633,864
Rank history: #22 in FY2021, #24 in FY2022, #15 in FY2023, #29 in FY2024 and #8 in FY2025; up 12 since Aug 2024–Jul 2025.
12 $11,647,841
Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, #10 in FY2024 and #3 in FY2025; down 5 since Aug 2024–Jul 2025.
13 $10,772,964
Rank history: #3 in FY2021, #4 in FY2022, #19 in FY2023, #14 in FY2024 and #9 in FY2025; down 2 since Aug 2024–Jul 2025.
14 $9,830,403
Rank history: #9 in FY2021, #16 in FY2022, #16 in FY2023, #9 in FY2024 and #26 in FY2025; up 17 since Aug 2024–Jul 2025.
15 $9,568,514
Rank history: #1 in FY2021, #9 in FY2022, #12 in FY2023, #8 in FY2024 and #6 in FY2025; down 10 since Aug 2024–Jul 2025.
16 $7,943,702
Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #17 in FY2025; unchanged since Aug 2024–Jul 2025.
17 $7,923,585
Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #31 in FY2025; down 14 since Aug 2024–Jul 2025.
18 $7,779,033
Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #18 in FY2025; down 3 since Aug 2024–Jul 2025.
19
Regan Technologies Corp
$7,098,757
Rank history: not on the FY2021–FY2025 lists; up 212 since Aug 2024–Jul 2025.
20 $7,093,043
Rank history: #8 in FY2021, #10 in FY2022, #10 in FY2023, #23 in FY2024 and #33 in FY2025; unchanged since Aug 2024–Jul 2025.
21 $6,895,751
Rank history: #19 in FY2021, #25 in FY2022, #6 in FY2023, #6 in FY2024 and #20 in FY2025; down 13 since Aug 2024–Jul 2025.
22 $6,790,979
Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
23 $6,465,596
Rank history: #72 in FY2021, not on the FY2022 list, #43 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
24
Knot Technology Solutions L.L.C.
$4,932,182
Rank history: not on the FY2021–FY2022 lists, #54 in FY2023, #43 in FY2024 and #23 in FY2025; up 21 since Aug 2024–Jul 2025.
25
OSI Federal Technologies Inc
$4,788,572
Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; down 13 since Aug 2024–Jul 2025.
26 $4,761,118
Rank history: #60 in FY2021, #57 in FY2022, not on the FY2023–FY2024 lists and #25 in FY2025; up 44 since Aug 2024–Jul 2025.
27 $4,559,019
Rank history: #42 in FY2021, #8 in FY2022, #62 in FY2023, #52 in FY2024 and #27 in FY2025; up 51 since Aug 2024–Jul 2025.
28
Red River Technology LLC 2 awardees, including Distributed Technology Group LLC
$4,543,197
Rank history: #29 in FY2021, #15 in FY2022, #17 in FY2023, #39 in FY2024 and #19 in FY2025; up 191 since Aug 2024–Jul 2025.
30 $4,101,171
Rank history: #25 in FY2021, #17 in FY2022, #7 in FY2023, #5 in FY2024 and #10 in FY2025; down 21 since Aug 2024–Jul 2025.
31 $4,046,323
Rank history: #36 in FY2021, #19 in FY2022, #20 in FY2023, #7 in FY2024 and #16 in FY2025; down 25 since Aug 2024–Jul 2025.
32 $4,009,586
Rank history: #26 in FY2021, not on the FY2022–FY2023 lists, #42 in FY2024 and #28 in FY2025; down 4 since Aug 2024–Jul 2025.
33 $3,852,525
Rank history: #67 in FY2021, #62 in FY2022, #90 in FY2023, #93 in FY2024 and not on the FY2025 list; up 47 since Aug 2024–Jul 2025.
34 $3,848,335
Rank history: #80 in FY2021, #88 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 139 since Aug 2024–Jul 2025.
35 $3,136,720
Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #35 in FY2025; down 16 since Aug 2024–Jul 2025.
36 $3,133,590
Rank history: #44 in FY2021, #30 in FY2022, #47 in FY2023, #47 in FY2024 and #48 in FY2025; up 14 since Aug 2024–Jul 2025.
37
World Wide Technology LLC
$3,056,412
Rank history: not on the FY2021–FY2022 lists, #29 in FY2023, #27 in FY2024 and #32 in FY2025; down 12 since Aug 2024–Jul 2025.
38 $2,803,928
Rank history: #5 in FY2021, #27 in FY2022, #27 in FY2023, #31 in FY2024 and #36 in FY2025; up 6 since Aug 2024–Jul 2025.
39 $2,661,179
Rank history: not on the FY2021 list, #14 in FY2022, #64 in FY2023, #88 in FY2024 and #24 in FY2025; down 9 since Aug 2024–Jul 2025.
40 $2,558,468
Rank history: not on the FY2021 list, #70 in FY2022, #48 in FY2023, not on the FY2024 list and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41 $2,378,111
Rank history: not on the FY2021–FY2022 lists, #25 in FY2023, #55 in FY2024 and #21 in FY2025; down 17 since Aug 2024–Jul 2025.
42 $2,307,176
Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list, #26 in FY2024 and #41 in FY2025; down 16 since Aug 2024–Jul 2025.
43 $2,205,417
Rank history: #63 in FY2021, #59 in FY2022, #57 in FY2023, #60 in FY2024 and #39 in FY2025; unchanged since Aug 2024–Jul 2025.
44 $2,051,770
Rank history: #61 in FY2021, #52 in FY2022, #56 in FY2023, #57 in FY2024 and #50 in FY2025; up 104 since Aug 2024–Jul 2025.
45 $2,002,078
Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 24 since Aug 2024–Jul 2025.
46 $1,478,357
Rank history: #68 in FY2021, not on the FY2022 list, #83 in FY2023, not on the FY2024 list and #46 in FY2025; up 56 since Aug 2024–Jul 2025.
47 $1,217,300
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
48 $1,196,461
Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 8 since Aug 2024–Jul 2025.
49 $1,154,435
Rank history: #77 in FY2021, #94 in FY2022 and not on the FY2023–FY2025 lists; up 69 since Aug 2024–Jul 2025.
50 $1,145,680
Rank history: #53 in FY2021, #45 in FY2022, #66 in FY2023, #58 in FY2024 and #64 in FY2025; up 14 since Aug 2024–Jul 2025.
51 $1,086,359
Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and not on the FY2025 list; up 16 since Aug 2024–Jul 2025.
52 $1,084,787
Rank history: #32 in FY2021, #66 in FY2022, #50 in FY2023, #68 in FY2024 and #53 in FY2025; up 32 since Aug 2024–Jul 2025.
53 $1,072,572
Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, #21 in FY2024 and not on the FY2025 list; down 31 since Aug 2024–Jul 2025.
54 $1,002,813
Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #87 in FY2025; up 71 since Aug 2024–Jul 2025.
55 $869,845
Rank history: #90 in FY2021, not on the FY2022–FY2024 lists and #51 in FY2025; up 153 since Aug 2024–Jul 2025.
56 $865,768
Rank history: #56 in FY2021, #36 in FY2022, #39 in FY2023, #40 in FY2024 and #76 in FY2025; down 3 since Aug 2024–Jul 2025.
57 $841,753
Rank history: #85 in FY2021, not on the FY2022–FY2024 lists and #81 in FY2025; up 109 since Aug 2024–Jul 2025.
58 $801,414
Rank history: #78 in FY2021, #50 in FY2022, #45 in FY2023, not on the FY2024 list and #52 in FY2025; up 24 since Aug 2024–Jul 2025.
59 $767,312
Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 183 since Aug 2024–Jul 2025.
60 $738,150
Rank history: #81 in FY2021, #74 in FY2022, #74 in FY2023, #78 in FY2024 and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61 $734,389
Rank history: #50 in FY2021, #65 in FY2022, not on the FY2023 list, #69 in FY2024 and #65 in FY2025; up 16 since Aug 2024–Jul 2025.
62 $719,410
Rank history: not on the FY2021 list, #75 in FY2022, #67 in FY2023, #70 in FY2024 and #49 in FY2025; unchanged since Aug 2024–Jul 2025.
63 $711,836
Rank history: #64 in FY2021, #41 in FY2022, #55 in FY2023, #22 in FY2024 and #14 in FY2025; down 50 since Aug 2024–Jul 2025.
64 $700,612
Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
65 $674,293
Rank history: not on the FY2021–FY2022 lists, #85 in FY2023, #83 in FY2024 and #72 in FY2025; up 14 since Aug 2024–Jul 2025.
66 $657,425
Rank history: not on the FY2021–FY2022 lists, #91 in FY2023, not on the FY2024 list and #61 in FY2025; up 224 since Aug 2024–Jul 2025.
67 $622,450
Rank history: #75 in FY2021, #22 in FY2022, #36 in FY2023, not on the FY2024 list and #67 in FY2025; up 108 since Aug 2024–Jul 2025.
68 $615,892
Rank history: not on the FY2021 list, #84 in FY2022, #75 in FY2023, #85 in FY2024 and #63 in FY2025; up 6 since Aug 2024–Jul 2025.
69 $538,741
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
70 $520,216
Rank history: #14 in FY2021, #67 in FY2022, #72 in FY2023, #17 in FY2024 and #85 in FY2025; down 53 since Aug 2024–Jul 2025.
71 $517,516
Rank history: #91 in FY2021, #64 in FY2022, not on the FY2023–FY2024 lists and #70 in FY2025; up 50 since Aug 2024–Jul 2025.
72 $486,895
Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; down 30 since Aug 2024–Jul 2025.
73 $479,861
Rank history: #21 in FY2021, #23 in FY2022, #22 in FY2023, #32 in FY2024 and #77 in FY2025; down 32 since Aug 2024–Jul 2025.
74 $477,694
Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Aug 2024–Jul 2025.
75 $467,908
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76 $445,493
Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
77 $437,970
Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; up 86 since Aug 2024–Jul 2025.
78 $434,321
Rank history: #74 in FY2021, #54 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; up 52 since Aug 2024–Jul 2025.
79 $415,856
Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 106 since Aug 2024–Jul 2025.
80 $411,895
Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #71 in FY2025; down 33 since Aug 2024–Jul 2025.
81 $402,781
Rank history: #76 in FY2021, #61 in FY2022, not on the FY2023 list, #46 in FY2024 and #78 in FY2025; down 27 since Aug 2024–Jul 2025.
82 $375,070
Rank history: not on the FY2021–FY2025 lists; up 32 since Aug 2024–Jul 2025.
83 $375,000
Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84 $353,296
Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #30 in FY2024 and #86 in FY2025; down 52 since Aug 2024–Jul 2025.
85 $320,127
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86 $319,272
Rank history: #37 in FY2021, #35 in FY2022, #28 in FY2023, #36 in FY2024 and #34 in FY2025; down 47 since Aug 2024–Jul 2025.
87 $316,548
Rank history: #54 in FY2021, not on the FY2022 list, #59 in FY2023, #98 in FY2024 and not on the FY2025 list; up 10 since Aug 2024–Jul 2025.
88 $305,406
Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
89 $303,846
Rank history: not on the FY2021–FY2025 lists; up 60 since Aug 2024–Jul 2025.
90 $296,806
Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 110 since Aug 2024–Jul 2025.
91 $285,119
Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, #15 in FY2024 and #79 in FY2025; down 57 since Aug 2024–Jul 2025.
92
Kyndryl Inc
$279,114
Rank history: not on the FY2021–FY2023 lists, #81 in FY2024 and not on the FY2025 list; down 6 since Aug 2024–Jul 2025.
93 $274,752
Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, not on the FY2024 list and #91 in FY2025; unchanged since Aug 2024–Jul 2025.
94 $248,000
Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; new, not ranked in Aug 2024–Jul 2025.
95 $226,400
Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 6 since Aug 2024–Jul 2025.
96
ADB Safegate Americas LLC
$218,387
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97 $210,691
Rank history: not on the FY2021–FY2025 lists; up 138 since Aug 2024–Jul 2025.
98 $207,910
Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 89 since Aug 2024–Jul 2025.
99 $206,385
Rank history: not on the FY2021–FY2025 lists; up 32 since Aug 2024–Jul 2025.
100 $205,835
Rank history: not on the FY2021–FY2025 lists; up 173 since Aug 2024–Jul 2025.
Show 75 more

100 of 230 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 $523 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 7B21 contractors in Aug 2025–Jul 2026?

1. Four LLC ($67.8M), 2. FCN, Inc. ($54.7M), 3. Palantir Technologies Inc. ($38.2M), 4. MCP Computer Products Inc. ($22.1M), 5. Science Applications International Corporation ($20.7M), 6. Mythics Inc. ($19.4M), 7. ITI Engineering LLC ($18.2M), 8. International Business Machines Corporation ($16.4M), 9. NCS Technologies Inc. ($15.5M), 10. Sterling Computers Corporation ($14.4M).

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