Top 87 Contractors in NAICS 54136: Geophysical Surveying and Mapping Services, 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 NAICS 54136: Geophysical Surveying and Mapping Services, FY2025.

The top 10 won 93% of NAICS 54136 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$127,392,301 Net of deobligations, by contracts coded NAICS 54136 or a code under it
Contractors
89 Parent companies with an obligation
Largest contractor
Woolpert, Inc. $28.8 million, 22.4% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 87 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1 $28,756,477
Rank history: #3 in FY2021, #2 in FY2022, #4 in FY2023, #1 in FY2024 and #2 in FY2025; up 2 since Aug 2024–Jul 2025.
2 $25,460,504
Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, not on the FY2024 list and #1 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3 $23,250,395
Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #5 in FY2025; up 1 since Aug 2024–Jul 2025.
4 $14,443,843
Rank history: #9 in FY2021, #4 in FY2022, #3 in FY2023, #4 in FY2024 and #3 in FY2025; up 1 since Aug 2024–Jul 2025.
5 $9,321,123
Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #4 in FY2025; down 3 since Aug 2024–Jul 2025.
6 $7,136,144
Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, #6 in FY2024 and #6 in FY2025; unchanged since Aug 2024–Jul 2025.
7 $3,920,139
Rank history: not on the FY2021 list, #13 in FY2022, not on the FY2023 list, #10 in FY2024 and #7 in FY2025; unchanged since Aug 2024–Jul 2025.
8 $2,605,602
Rank history: #12 in FY2021, #9 in FY2022, #11 in FY2023, #13 in FY2024 and #9 in FY2025; up 2 since Aug 2024–Jul 2025.
9 $2,012,388
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10 $1,952,536
Rank history: not on the FY2021–FY2022 lists, #52 in FY2023, not on the FY2024 list and #13 in FY2025; up 8 since Aug 2024–Jul 2025.
11 $1,528,837
Rank history: not on the FY2021 list, #8 in FY2022, #10 in FY2023, #7 in FY2024 and #11 in FY2025; down 3 since Aug 2024–Jul 2025.
12 $1,273,827
Rank history: #20 in FY2021, #15 in FY2022, #17 in FY2023, #15 in FY2024 and #18 in FY2025; up 8 since Aug 2024–Jul 2025.
13 $616,400
Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #29 in FY2024 and #16 in FY2025; up 36 since Aug 2024–Jul 2025.
14
Seismic Exchange Inc.
$553,520
Rank history: not on the FY2021–FY2022 lists, #42 in FY2023, not on the FY2024 list and #19 in FY2025; up 10 since Aug 2024–Jul 2025.
15 $456,524
Rank history: #28 in FY2021, not on the FY2022–FY2024 lists and #52 in FY2025; up 51 since Aug 2024–Jul 2025.
16 $360,486
Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Aug 2024–Jul 2025.
17 $352,575
Rank history: #21 in FY2021, #58 in FY2022, #15 in FY2023, #25 in FY2024 and #17 in FY2025; up 5 since Aug 2024–Jul 2025.
18
Shannon & Wilson Inc.
$278,920
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; up 20 since Aug 2024–Jul 2025.
19 $235,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20 $233,286
Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; up 15 since Aug 2024–Jul 2025.
21 $191,970
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
22 $184,426
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23 $119,060
Rank history: #91 in FY2021, #32 in FY2022, not on the FY2023 list, #45 in FY2024 and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24
Planet Labs Federal, Inc.
$114,750
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25
3D Imaging Technology LLC
$112,320
Rank history: not on the FY2021 list, #20 in FY2022, #16 in FY2023, not on the FY2024 list and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26
Arab Center for Engineering Studies Ltd - ABU Dhabi
$106,444
Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27 $105,000
Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; up 6 since Aug 2024–Jul 2025.
28 $97,170
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29 $92,500
Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30 $89,547
Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #23 in FY2025; down 14 since Aug 2024–Jul 2025.
31
Seitel, Inc.
$82,992
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32 $82,800
Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33 $82,572
Rank history: not on the FY2021–FY2022 lists, #82 in FY2023, not on the FY2024 list and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34 $79,971
Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #14 in FY2025; down 20 since Aug 2024–Jul 2025.
35 $78,200
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36 $76,600
Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #82 in FY2025; unchanged since Aug 2024–Jul 2025.
37
Gulf Shore Construction Services Inc.
$69,787
Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and not on the FY2025 list; down 22 since Aug 2024–Jul 2025.
38 $66,560
Rank history: #54 in FY2021, not on the FY2022 list, #39 in FY2023, #49 in FY2024 and #34 in FY2025; up 7 since Aug 2024–Jul 2025.
39 $66,545
Rank history: not on the FY2021–FY2022 lists, #38 in FY2023, #35 in FY2024 and #32 in FY2025; down 9 since Aug 2024–Jul 2025.
40 $65,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41 $61,085
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42 $60,345
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
43 $57,820
Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
44 $54,476
Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45 $53,850
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46 $52,500
Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47 $52,123
Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #53 in FY2025; up 3 since Aug 2024–Jul 2025.
48 $51,540
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49
Michael Baker International Inc.
$48,991
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50 $48,240
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51 $43,915
Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52 $38,495
Rank history: #13 in FY2021, #11 in FY2022, #8 in FY2023, #11 in FY2024 and #12 in FY2025; down 40 since Aug 2024–Jul 2025.
53 $37,900
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54 $37,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55 $36,654
Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56 $36,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57 $32,658
Rank history: #80 in FY2021, #64 in FY2022, #55 in FY2023, #79 in FY2024 and #27 in FY2025; down 18 since Aug 2024–Jul 2025.
58 $31,896
Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
59 $30,064
Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60 $30,000
Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61 $30,000
Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 22 since Aug 2024–Jul 2025.
62 $29,080
Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63 $28,243
Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64 $27,400
Rank history: #93 in FY2021, not on the FY2022–FY2023 lists, #81 in FY2024 and #54 in FY2025; up 3 since Aug 2024–Jul 2025.
65 $26,280
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66 $25,680
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
67 $23,975
Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68 $21,885
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
69 $21,855
Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70 $21,231
Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and not on the FY2025 list; down 16 since Aug 2024–Jul 2025.
71 $20,728
Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Aug 2024–Jul 2025.
72 $19,651
Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; down 17 since Aug 2024–Jul 2025.
73 $18,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74 $16,000
Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #63 in FY2025; up 4 since Aug 2024–Jul 2025.
75 $15,000
Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
76 $14,800
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77 $13,500
Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78 $13,000
Rank history: not on the FY2021 list, #95 in FY2022, #73 in FY2023, not on the FY2024 list and #69 in FY2025; up 11 since Aug 2024–Jul 2025.
79 $11,000
Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Aug 2024–Jul 2025.
80 $10,920
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81 $10,416
Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Aug 2024–Jul 2025.
82 $10,043
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83 $3,900
Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 8 since Aug 2024–Jul 2025.
84 $3,300
Rank history: not on the FY2021 list, #98 in FY2022, #79 in FY2023, not on the FY2024 list and #85 in FY2025; up 11 since Aug 2024–Jul 2025.
85 $2,936
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86 $824
Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
87 $800
Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
Show 62 more

87 of 89 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 54136

Code Net obligations Largest contractor
541360 Geophysical Surveying and Mapping Services $127,392,301 Woolpert, Inc.

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 $128 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 NAICS 54136 contractors in Aug 2025–Jul 2026?

1. Woolpert, Inc. ($28.8M), 2. NV5 Global, Inc. ($25.5M), 3. Fugro USA Land, Inc. ($23.3M), 4. Merrick-Surdex Joint Venture LLP ($14.4M), 5. Dewberry Engineers Inc. ($9.32M), 6. Costquest Associates LLC ($7.14M), 7. The Sanborn Map Company, Inc. ($3.92M), 8. The Boeing Company ($2.61M), 9. Brackish Consulting LLC ($2.01M), 10. Instrumental Software Technologies, Inc. ($1.95M).

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