Top 100 Contractors in NAICS 2383: Building Finishing Contractors, FY2023

Name: Top 100 Contractors in NAICS 2383: Building Finishing Contractors, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 35% of FY2023 NAICS 2383 contract dollars

Contract obligations: $231,514,421 Net of deobligations, by contracts coded NAICS 2383 or a code under it
Contractors: 706 Parent companies with an obligation
Largest contractor: Flatwater Professional Services Company $25.8 million, 10.7% of obligations
Data as of: Oct 14, 2026

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	Flatwater Professional Services Company Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$25,769,565	10.7%	Rank history: not on the FY2021 list, #4 in FY2022, #4 in FY2024 and not on the FY2025 list; up 3 since FY2022.
2	Krueger International, Inc. Top agencies DOJ (Department of Justice)	$18,321,550	7.6%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2024 and #3 in FY2025; down 1 since FY2022.
3	Togiak Management Services, LLC Top agencies USAF (Department of the Air Force)	$7,471,218	3.1%	Rank history: not on the FY2021 list, #3 in FY2022, #3 in FY2024 and #8 in FY2025; unchanged since FY2022.
4	Lillard & Clark Construction Co Inc. Top agencies DOI (Department of the Interior)	$7,250,676	3.0%	Rank history: #8 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
5	American Engineering Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$5,966,093	2.5%	Rank history: #27 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
6	BPD Engineering, LLC Top agencies DOJ (Department of Justice)	$4,595,184	1.9%	Rank history: #4 in FY2021, #2 in FY2022, #9 in FY2024 and #5 in FY2025; down 4 since FY2022.
7	Ostrom Painting & Sandblasting, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$4,347,637	1.8%	Rank history: #6 in FY2021, #17 in FY2022, #6 in FY2024 and #9 in FY2025; up 10 since FY2022.
8	Watertight Solutions LLC Top agencies DOS (Department of State)	$4,320,577	1.8%	Rank history: #59 in FY2021, #37 in FY2022, not on the FY2024 list and #16 in FY2025; up 29 since FY2022.
9	Yokomizo Tokoten Co., Ltd. Top agencies Army (Department of the Army)	$3,399,000	1.4%	Rank history: #71 in FY2021, #34 in FY2022 and not on the FY2024–FY2025 lists; up 25 since FY2022.
10	Safeco Inc. Top agencies Treasury (Department of the Treasury)	$2,846,486	1.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
11	James Fletcher Construction, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$2,723,833	1.1%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; up 37 since FY2022.
12	Immersive Concepts L.L.C. Top agencies USAF (Department of the Air Force)	$2,642,109	1.1%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
13	R & J Global Industries, Inc. Top agencies Army (Department of the Army)	$2,450,963	1.0%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and not on the FY2025 list; new.
14	MDM Construction LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,366,341	1.0%	Rank history: #30 in FY2021, #20 in FY2022, not on the FY2024 list and #63 in FY2025; up 6 since FY2022.
15	AFG Group Inc. Top agencies USAF (Department of the Air Force)	$2,250,000	0.9%	Rank history: not on the FY2021 list, #75 in FY2022, #24 in FY2024 and #15 in FY2025; up 60 since FY2022.
16	Suzuki Kensetsu Kogyo Co.,Ltd. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,219,075	0.9%	Rank history: #38 in FY2021, not on the FY2022 list, #74 in FY2024 and #70 in FY2025; up 161 since FY2022.
17	Moonlite Construction Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$2,190,417	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
18	Ko-Am Enterprises Inc. Top agencies Smithsonian (Smithsonian Institution)	$2,154,722	0.9%	Rank history: not on the FY2021 list, #28 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
19	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$2,153,369	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 328 since FY2022.
20	CF Solutions LLC Top agencies USAF (Department of the Air Force)	$2,102,961	0.9%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2024 and not on the FY2025 list; up 138 since FY2022.
21	Scaturro Brothers Inc. Top agencies VA (Department of Veterans Affairs)	$1,984,668	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
22	Industries for the Blind and Visually Impaired, Inc. Top agencies DOI (Department of the Interior)	$1,929,254	0.8%	Rank history: #3 in FY2021, #6 in FY2022, #10 in FY2024 and #84 in FY2025; down 16 since FY2022.
23	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$1,911,905	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
24	T & M Painting and Construction, Inc. Top agencies Navy (Department of the Navy)	$1,842,562	0.8%	Rank history: #34 in FY2021, #30 in FY2022, #20 in FY2024 and #14 in FY2025; up 6 since FY2022.
25	Greenstone Construction Inc. Top agencies VA (Department of Veterans Affairs)	$1,836,107	0.8%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #64 in FY2025; new.
26	David C. Smith & Son, Inc. Top agencies HHS (Department of Health and Human Services)	$1,759,442	0.7%	Rank history: #28 in FY2021, #8 in FY2022, #7 in FY2024 and not on the FY2025 list; down 18 since FY2022.
27	Vzla Floor Covering Inc. Top agencies HHS (Department of Health and Human Services)	$1,624,701	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
28	Frank GMBH Top agencies Army (Department of the Army)	$1,565,566	0.7%	Rank history: #11 in FY2021, #9 in FY2022, not on the FY2024 list and #23 in FY2025; down 19 since FY2022.
29	YPC Inc. Top agencies Army (Department of the Army)	$1,544,969	0.6%	Rank history: #60 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
30	Fidelity Contract Flooring, LLC Top agencies VA (Department of Veterans Affairs)	$1,483,484	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 186 since FY2022.
31	Southeastern Industrial Construction, LLC 2 awardees Top agencies Navy (Department of the Navy)	$1,468,249	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
32	Coastal Marine Services, Inc. Top agencies Navy (Department of the Navy)	$1,391,556	0.6%	Rank history: not on the FY2021 list, #98 in FY2022, #49 in FY2024 and #32 in FY2025; up 66 since FY2022.
33	Grainger Contracting and Services, LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) DOI (Department of the Interior)	$1,314,801	0.5%	Rank history: #69 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 23 since FY2022.
34	Heenan Construction, LLC Top agencies Army (Department of the Army)	$1,284,226	0.5%	Rank history: not on the FY2021 list, #32 in FY2022, #46 in FY2024 and #19 in FY2025; down 2 since FY2022.
35	Blue Construction Services LLC Top agencies DHS (Department of Homeland Security) DOL (Department of Labor) GSA (General Services Administration)	$1,267,241	0.5%	Rank history: #18 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 196 since FY2022.
36	VF Services LLC Top agencies VA (Department of Veterans Affairs)	$1,257,650	0.5%	Rank history: #13 in FY2021, #26 in FY2022, #27 in FY2024 and #68 in FY2025; down 10 since FY2022.
37	L.p.s. Autos Inc. Top agencies Treasury (Department of the Treasury)	$1,223,900	0.5%	Rank history: not on the FY2021 list, #16 in FY2022, #50 in FY2024 and not on the FY2025 list; down 21 since FY2022.
38	PAE Government Services Inc. Through Amentum Design and Facility Management Top agencies DOS (Department of State)	$1,159,858	0.5%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
39	Knock Out-Trujillo Special Coatings JV Top agencies USAF (Department of the Air Force)	$1,109,094	0.5%	Rank history: #39 in FY2021, #46 in FY2022, #44 in FY2024 and #46 in FY2025; up 7 since FY2022.
40	Addon Services, LLC Top agencies DOT (Department of Transportation)	$1,106,018	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	Kosaka Komuten Co.,Ltd. Top agencies USAF (Department of the Air Force)	$1,060,536	0.4%	Rank history: #43 in FY2021, #44 in FY2022, #60 in FY2024 and not on the FY2025 list; up 3 since FY2022.
42	MW Cole Construction LLC Top agencies DOJ (Department of Justice)	$1,060,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	MC3 Solutions LLC Top agencies VA (Department of Veterans Affairs)	$1,058,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Mano Lani LLC Top agencies DISA (Defense Information Systems Agency)	$1,049,986	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Wichita Falls Tri-Tech, LLC Top agencies VA (Department of Veterans Affairs)	$1,027,871	0.4%	Rank history: #32 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
46	Doyon Government Contracting Inc. Through Doyon Technical Services, LLC Top agencies Army (Department of the Army)	$1,017,429	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	Royal Bridge, Inc. Top agencies Army (Department of the Army)	$997,420	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	All Phase Solutions LLC Top agencies DOE (Department of Energy)	$987,822	0.4%	Rank history: not on the FY2021 list, #84 in FY2022 and not on the FY2024–FY2025 lists; up 36 since FY2022.
49	AJ Commercial Services, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$978,460	0.4%	Rank history: #44 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
50	DAP Construction Management LLC Top agencies USAF (Department of the Air Force)	$975,315	0.4%	Rank history: #57 in FY2021, #38 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
51	TLI Construction, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) AOUSC (Administrative Office of the U.S. Courts)	$962,487	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Integriward LLC Top agencies DHS (Department of Homeland Security)	$951,190	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
53	Vanguard Pacific LLC Top agencies USAF (Department of the Air Force)	$947,465	0.4%	Rank history: #16 in FY2021, #21 in FY2022, #37 in FY2024 and #28 in FY2025; down 32 since FY2022.
54	Ocean Flooring, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$917,244	0.4%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2024 and #51 in FY2025; up 60 since FY2022.
55	Heritage Interiors LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DOT (Department of Transportation)	$910,229	0.4%	Rank history: not on the FY2021 list, #70 in FY2022, #72 in FY2024 and not on the FY2025 list; up 15 since FY2022.
56	Ritz Construction Inc. Top agencies DOI (Department of the Interior)	$849,434	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 184 since FY2022.
57	Surface Systems Inc. Top agencies Army (Department of the Army)	$838,084	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
58	R&I Construction, Inc. Top agencies Army (Department of the Army)	$805,168	0.3%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2024 and #79 in FY2025; new.
59	Cavu Consulting LLC Top agencies Navy (Department of the Navy)	$794,853	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	RC Quartermaster LLC Top agencies VA (Department of Veterans Affairs)	$791,167	0.3%	Rank history: #22 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 71 since FY2022.
61	FW Specialties, LLC Top agencies USAF (Department of the Air Force)	$787,450	0.3%	Rank history: #67 in FY2021, not on the FY2022 list, #59 in FY2024 and #75 in FY2025; up 47 since FY2022.
62	K&C Contractors, Inc. Top agencies Army (Department of the Army)	$785,830	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 98 since FY2022.
63	Sterile Services Co 2 awardees Top agencies Army (Department of the Army)	$772,766	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Sergeant Construction Inc. Top agencies SSA (Social Security Administration)	$771,269	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	Permatect Facility Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$763,490	0.3%	Rank history: #82 in FY2021, not on the FY2022 list, #33 in FY2024 and #11 in FY2025; up 234 since FY2022.
66	Triple Canopy Inc. Through Centerra Integrated Services GMBH Top agencies Army (Department of the Army)	$743,941	0.3%	Rank history: #37 in FY2021, #50 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
67	Furniture Installation & Service Technicians LLC Top agencies Army (Department of the Army)	$738,515	0.3%	Rank history: #45 in FY2021, #79 in FY2022, #84 in FY2024 and #72 in FY2025; up 12 since FY2022.
68	Tiem Impianti SRL Top agencies USAF (Department of the Air Force)	$736,420	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
69	Encore Associates, LLC Top agencies Army (Department of the Army)	$715,190	0.3%	Rank history: #72 in FY2021, not on the FY2022 list, #42 in FY2024 and #69 in FY2025; up 191 since FY2022.
70	Tri Coast Construction, LLC Top agencies Army (Department of the Army) DOI (Department of the Interior)	$710,544	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #88 in FY2025; new.
71	Henry General Contractors Inc Top agencies DOJ (Department of Justice) GSA (General Services Administration) AOUSC (Administrative Office of the U.S. Courts)	$705,179	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 113 since FY2022.
72	J & J Maintenance Inc. Through J&J Germany GMBH Top agencies USAF (Department of the Air Force)	$703,945	0.3%	Rank history: #73 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
73	Pretlow Robert Top agencies Army (Department of the Army) AOUSC (Administrative Office of the U.S. Courts)	$695,763	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Frontline Support Solutions LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$671,264	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Randy Ashton LLC Top agencies Navy (Department of the Navy)	$668,906	0.3%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #99 in FY2025; new.
76	GCC Enterprises Inc. Top agencies VA (Department of Veterans Affairs)	$662,383	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	Doliveira Systems LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$660,932	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	ASJ Construction, A Texas Limited Liability Company Top agencies USAF (Department of the Air Force)	$652,000	0.3%	Rank history: #74 in FY2021, #81 in FY2022, #82 in FY2024 and #44 in FY2025; up 3 since FY2022.
79	Professional Concrete Flooring Solutions LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) DHS (Department of Homeland Security)	$650,643	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 32 since FY2022.
80	Chinook Properties, Inc. Top agencies Navy (Department of the Navy)	$638,306	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 112 since FY2022.
81	JP8 Resources LLC Top agencies GSA (General Services Administration) USAF (Department of the Air Force) DOI (Department of the Interior)	$628,487	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 334 since FY2022.
82	Improve Group, Inc. Top agencies USAF (Department of the Air Force)	$606,479	0.3%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2024 and not on the FY2025 list; up 107 since FY2022.
83	SJS Executives LLC Top agencies VA (Department of Veterans Affairs)	$598,032	0.2%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
84	Faith Builders of Tampa Bay, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$593,558	0.2%	Rank history: not on the FY2021 list, #73 in FY2022, #57 in FY2024 and #62 in FY2025; down 11 since FY2022.
85	Altima Construction Inc. Top agencies DTRA (Defense Threat Reduction Agency) Army (Department of the Army) USAF (Department of the Air Force)	$591,384	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Gonzales Custom Painting, Inc. Top agencies DOI (Department of the Interior)	$587,370	0.2%	Rank history: #98 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 15 since FY2022.
87	Mission Support Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$587,050	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	JB Contracting, Inc. Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$571,299	0.2%	Rank history: #66 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 73 since FY2022.
89	Merrimack Environmetal Solution Corp Top agencies DHS (Department of Homeland Security)	$562,213	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Microbase Corporation Top agencies DISA (Defense Information Systems Agency) GSA (General Services Administration)	$554,245	0.2%	Rank history: not on the FY2021 list, #33 in FY2022 and not on the FY2024–FY2025 lists; down 57 since FY2022.
91	K & S Flooring By Keith, LLC Top agencies USAF (Department of the Air Force)	$542,297	0.2%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and #61 in FY2025; new.
92	Terra Site Constructors LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$536,740	0.2%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; down 74 since FY2022.
93	A & a Holdings Corp Top agencies Army (Department of the Army)	$502,289	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Advance RRP LLC Top agencies DOI (Department of the Interior)	$495,000	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #40 in FY2025; new.
95	Itm4G LLC Top agencies DOE (Department of Energy)	$482,321	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 46 since FY2022.
96	Prime Masonry, LLC Top agencies Navy (Department of the Navy)	$475,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 198 since FY2022.
97	XL Construction LLC Top agencies Army (Department of the Army)	$470,001	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Tidewater Technical Coatings, Inc. Top agencies Navy (Department of the Navy)	$464,800	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	Chroma Restauracio Del Patrimoni Arquitectonic SL. Top agencies DOS (Department of State)	$456,754	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	South Bay EDC Inc. Top agencies Navy (Department of the Navy)	$445,914	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

Show 75 more

100 of 706 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 2383

Code	Net obligations	Largest contractor
23832 Painting and Wall Covering Contractors	$89,353,319	Togiak Management Services, LLC
23839 Other Building Finishing Contractors	$86,408,167	Flatwater Professional Services Company
23833 Flooring Contractors	$39,367,850	Ko-Am Enterprises Inc.
23835 Finish Carpentry Contractors	$7,868,427	Greenstone Construction Inc.
23831 Drywall and Insulation Contractors	$6,807,816	Coastal Marine Services, 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 $241 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 2383 contractors in FY2023?

1. Flatwater Professional Services Company ($25.8M), 2. Krueger International, Inc. ($18.3M), 3. Togiak Management Services, LLC ($7.47M), 4. Lillard & Clark Construction Co Inc. ($7.25M), 5. American Engineering Corporation ($5.97M), 6. BPD Engineering, LLC ($4.6M), 7. Ostrom Painting & Sandblasting, Inc. ($4.35M), 8. Watertight Solutions LLC ($4.32M), 9. Yokomizo Tokoten Co., Ltd. ($3.4M), 10. Safeco Inc. ($2.85M).

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