Top 47 Contractors in PSC Z1BC: Maintenance of Radar and Navigational Facilities, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Georgia TECH Research Corp Through Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$31,247,500	65.7%	Rank history: #1 in FY2022, #3 in FY2023, #3 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
2	Bdapco LLC Top agencies DOT (Department of Transportation)	$1,877,800	3.9%	Rank history: #10 in FY2022, #22 in FY2023, #12 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
3	Grayds, Inc. Top agencies DOT (Department of Transportation)	$1,619,599	3.4%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
4	Schneider Electric Buildings Americas Inc. Through Schneider Electric Federal, Inc. Top agencies DOT (Department of Transportation)	$1,563,709	3.3%	Rank history: not on the FY2022 list, #25 in FY2023, #22 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
5	Nxt, LLC Top agencies DOT (Department of Transportation)	$1,436,096	3.0%	Rank history: #42 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
6	Saab AB Through Saab, Inc. Top agencies DOS (Department of State)	$1,081,005	2.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	Ouzinkie Native Corporation Through Ice Technical Services Inc. Top agencies DOT (Department of Transportation)	$1,016,484	2.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	Prow'ess Construction Corp. Top agencies DOT (Department of Transportation)	$960,232	2.0%	Rank history: #36 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	KEO & Associates Inc. Top agencies DOT (Department of Transportation)	$841,066	1.8%	Rank history: #37 in FY2022, #32 in FY2023, #19 in FY2024 and #45 in FY2025; new, not ranked in FY2020.
10	Bergerson Construction Inc. Top agencies DHS (Department of Homeland Security)	$606,506	1.3%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
11	The Chenega Corporation Through Chenega Reliable Services LLC Top agencies DOT (Department of Transportation)	$584,223	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Bartkowski Life Safety Corp Top agencies DOT (Department of Transportation)	$574,791	1.2%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
13	Acro Construction, LLC Top agencies DOT (Department of Transportation)	$542,811	1.1%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
14	MB Roofing Inc. Top agencies DOT (Department of Transportation)	$341,475	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
15	Mejia International Group Corp Top agencies DOT (Department of Transportation)	$327,050	0.7%	Rank history: #25 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
16	Jenkins Construction Inc. Top agencies DOT (Department of Transportation)	$279,300	0.6%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
17	Affordable Concrete, LLC Top agencies DOT (Department of Transportation)	$240,575	0.5%	Rank history: #31 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
18	Atex Group LLC Top agencies DOT (Department of Transportation)	$236,394	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
19	Tj&B Air Conditioning and Electric, LLC Top agencies DOT (Department of Transportation)	$231,708	0.5%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
20	Acumen Enterprises Inc. Top agencies DOT (Department of Transportation)	$190,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	Fluharty Erie, LLC Top agencies DOT (Department of Transportation)	$184,758	0.4%	Rank history: #26 in FY2022, #6 in FY2023, #11 in FY2024 and #15 in FY2025; new, not ranked in FY2020.
22	BAE Systems Land & Armaments L.P. Through BAE Systems Information and Electronic Systems Integration Inc. Top agencies Army (Department of the Army)	$150,034	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
23	Gilford Corporation Top agencies DOT (Department of Transportation)	$144,845	0.3%	Rank history: #6 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; down 21 since FY2020.
24	Core Mechanical Inc. Top agencies DOT (Department of Transportation)	$141,923	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Krisher Electric LLC Top agencies DOT (Department of Transportation)	$122,500	0.3%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
26	Carmen Roofing Services, LLC Top agencies USAF (Department of the Air Force)	$121,362	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Bay Area Tree Company, Inc. Top agencies DOT (Department of Transportation)	$118,500	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	International Support Group LLC Top agencies DOT (Department of Transportation)	$73,193	0.2%	Rank history: #29 in FY2022, #24 in FY2023, #25 in FY2024 and #27 in FY2025; new, not ranked in FY2020.
29	Lacusong Leilani Top agencies DOT (Department of Transportation)	$72,260	0.2%	Rank history: not on the FY2022–FY2024 lists and #29 in FY2025; new, not ranked in FY2020.
30	Sames, Inc. Top agencies DOT (Department of Transportation)	$68,526	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	Neucomm Solutions, LLC Top agencies DOT (Department of Transportation)	$62,023	0.1%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
32	Donatini, Inc. Top agencies Navy (Department of the Navy)	$55,648	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Ahtna Infrastructure & Technologies LLC Top agencies DOT (Department of Transportation)	$55,284	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Brunow Contracting, LLC Top agencies DOT (Department of Transportation)	$47,100	0.1%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
35	Johnson Controls Security Solutions LLC Through Johnson Controls Fire Protection LP Top agencies DOT (Department of Transportation)	$45,481	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	HD Inc. Top agencies DOT (Department of Transportation)	$41,852	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Structural Tower Services, Inc. Top agencies DOT (Department of Transportation)	$40,742	0.1%	Rank history: not on the FY2022 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
38	Elite Island Construction Inc. Top agencies DOT (Department of Transportation)	$39,406	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
39	Federal Contracts LLC Top agencies DOT (Department of Transportation)	$34,020	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Kimball Electronic Laboratory, Inc. Top agencies DHS (Department of Homeland Security)	$24,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Quad J Inc. Top agencies DOT (Department of Transportation)	$19,250	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
42	Systems Engineering Group LLC Top agencies DOT (Department of Transportation)	$18,894	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 34 since FY2020.
43	John Cecil Construction, LLC Top agencies DOT (Department of Transportation)	$16,238	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 34 since FY2020.
44	Oneill Contractors Inc. Top agencies DOT (Department of Transportation)	$15,858	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
45	Encorus Group Engineering, P.C. Top agencies DOT (Department of Transportation)	$15,550	<0.1%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
46	King & George, LLC Top agencies DOT (Department of Transportation)	$7,803	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 29 since FY2020.
47	Sheckler Contracting, Inc. Top agencies DOT (Department of Transportation)	$359	<0.1%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; down 21 since FY2020.

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 $47.5 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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.

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