Top 100 Contractors in NAICS 221210: Natural Gas Distribution, FY2024

Name: Top 100 Contractors in NAICS 221210: Natural Gas Distribution, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 51% of FY2024 NAICS 221210 contract dollars

Contract obligations: $255,294,295 Net of deobligations, by contracts coded NAICS 221210
Contractors: 180 Parent companies with an obligation
Largest contractor: WGL Energy Services Inc. $33.6 million, 11.7% 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	WGL Energy Services Inc. 5 awardees, including Washington Gas Light Company and Semco Energy, Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) Smithsonian (Smithsonian Institution)	$33,601,948	11.7%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2023 and #2 in FY2025; unchanged since FY2023.
2	Centrica PLC Through NRG Business Marketing LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOJ (Department of Justice)	$17,660,671	6.2%	Rank history: #2 in FY2021, not on the FY2022 list, #10 in FY2023 and not on the FY2025 list; up 8 since FY2023.
3	Tokyo Gas Co.,Ltd. Top agencies Navy (Department of the Navy)	$16,137,972	5.6%	Rank history: not on the FY2021 list, #1 in FY2022, #2 in FY2023 and #1 in FY2025; down 1 since FY2023.
4	Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy)	$15,270,813	5.3%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
5	Buyo Gas Co.,Ltd. 2 awardees, including Buyo Ekika Gas Co., Ltd. Top agencies USAF (Department of the Air Force)	$13,538,196	4.7%	Rank history: #10 in FY2021, #5 in FY2022, #3 in FY2023 and #6 in FY2025; down 2 since FY2023.
6	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$11,976,561	4.2%	Rank history: #7 in FY2021, #6 in FY2022, #4 in FY2023 and #7 in FY2025; down 2 since FY2023.
7	Eneos Sun-Energy Corporation Through Eneos Corporation Top agencies USAF (Department of the Air Force)	$10,560,144	3.7%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
8	Cobb Electric Membership Corporation Through Gas South, LLC Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$9,195,327	3.2%	Rank history: #16 in FY2021, #20 in FY2022, #7 in FY2023 and #13 in FY2025; down 1 since FY2023.
9	The Navajo Nation Tribal Government Through Navajo Tribal Utility Authority Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$8,518,189	3.0%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023 and #15 in FY2025; unchanged since FY2023.
10	Samchully Co.,Ltd. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$8,406,079	2.9%	Rank history: #18 in FY2021, #8 in FY2022, #6 in FY2023 and #10 in FY2025; down 4 since FY2023.
11	Georgia Power Company 2 awardees, including Southern Company Gas and Southstar Energy Services LLC Top agencies GSA (General Services Administration) NASA (National Aeronautics and Space Administration) DHS (Department of Homeland Security)	$8,306,580	2.9%	Rank history: #13 in FY2021, #17 in FY2022, #11 in FY2023 and #17 in FY2025; unchanged since FY2023.
12	One Gas, Inc. 6 awardees Top agencies Army (Department of the Army) DOJ (Department of Justice) Treasury (Department of the Treasury)	$8,177,420	2.9%	Rank history: #15 in FY2021, #15 in FY2022, #14 in FY2023 and #11 in FY2025; up 2 since FY2023.
13	Omega Pipeline Company, LLC Top agencies Army (Department of the Army)	$7,854,825	2.7%	Rank history: #4 in FY2021, #7 in FY2022, #8 in FY2023 and #12 in FY2025; down 5 since FY2023.
14	Sage Energy Trading LLC Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) DOJ (Department of Justice)	$6,364,582	2.2%	Rank history: #8 in FY2021, #13 in FY2022, #13 in FY2023 and #23 in FY2025; down 1 since FY2023.
15	Enstar Natural Gas Company, LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$6,002,988	2.1%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
16	Duke Energy Corporation 3 awardees, including Piedmont Natural Gas Company, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$4,395,497	1.5%	Rank history: #56 in FY2021, #29 in FY2022, #19 in FY2023 and #19 in FY2025; up 3 since FY2023.
17	Enspire Energy, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$4,106,085	1.4%	Rank history: #17 in FY2021, #19 in FY2022, #26 in FY2023 and #20 in FY2025; up 9 since FY2023.
18	Liberty Utilities (Peach State Natural Gas) Corp. Top agencies Army (Department of the Army)	$3,916,179	1.4%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
19	NRG Business Marketing LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) Army (Department of the Army)	$3,877,868	1.4%	Rank history: #61 in FY2021, not on the FY2022 list, #5 in FY2023 and #3 in FY2025; down 14 since FY2023.
20	Amerigas Propane L.P. 3 awardees, including UGI Utilities Inc. and UGI Energy Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) SSA (Social Security Administration)	$3,416,453	1.2%	Rank history: not on the FY2021 list, #69 in FY2022, #20 in FY2023 and #22 in FY2025; unchanged since FY2023.
21	Dome Chartering & Trading Corp. Through Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy)	$3,097,045	1.1%	Rank history: not on the FY2021 list, #26 in FY2022, #12 in FY2023 and not on the FY2025 list; down 9 since FY2023.
22	The Gas Company, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice)	$3,095,444	1.1%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; new.
23	UGI Corporation 3 awardees, including UGI Energy Services, LLC and Mountaineer Gas Co Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOJ (Department of Justice)	$3,082,522	1.1%	Rank history: #20 in FY2021, #11 in FY2022, #15 in FY2023 and not on the FY2025 list; down 8 since FY2023.
24	Fincantieri Marine Systems North America Inc. Through A.i.m. Energy S.R.L. Top agencies Army (Department of the Army)	$3,075,371	1.1%	Rank history: not on the FY2021 list, #14 in FY2022, #21 in FY2023 and not on the FY2025 list; down 3 since FY2023.
25	United Energy Corporation Through United Energy Trading, LLC Top agencies VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration) GSA (General Services Administration)	$2,636,955	0.9%	Rank history: #31 in FY2021, #35 in FY2022, #37 in FY2023 and #5 in FY2025; up 12 since FY2023.
26	Constellation Newenergy - Gas Division, LLC Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,973,500	0.7%	Rank history: #35 in FY2021, #3 in FY2022, #53 in FY2023 and #16 in FY2025; up 27 since FY2023.
27	City of Clarksville 2 awardees Top agencies Army (Department of the Army)	$1,741,901	0.6%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #39 in FY2025; up 62 since FY2023.
28	Teco Energy Inc. 3 awardees, including New Mexico Gas Company, Inc. and Peoples Gas System, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) GSA (General Services Administration)	$1,634,849	0.6%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; new.
29	Colonial Terminals, Inc. Through Colonial Energy Inc. Top agencies VA (Department of Veterans Affairs)	$1,457,067	0.5%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2025 list; up 39 since FY2023.
30	Nisource Inc. 5 awardees, including Columbia Gas of Pennsylvania Inc., Columbia Gas of Virginia, Inc. and Columbia Gas of Kentucky, Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) Smithsonian (Smithsonian Institution)	$1,381,753	0.5%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; up 95 since FY2023.
31	Colonial Energy Inc Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration)	$1,343,507	0.5%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
32	SK C&C Co. Ltd. 2 awardees, including Yeongnam Energy Service Co., Ltd. and Ko-One Energy Service Co.,Ltd Top agencies Army (Department of the Army)	$1,162,337	0.4%	Rank history: #43 in FY2021, #33 in FY2022, #27 in FY2023 and #44 in FY2025; down 5 since FY2023.
33	National Grid USA Service Company, Inc. Top agencies DOT (Department of Transportation) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,128,593	0.4%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
34	BSE Performance, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$1,118,225	0.4%	Rank history: #40 in FY2021, #45 in FY2022, #38 in FY2023 and #80 in FY2025; up 4 since FY2023.
35	Daesung Holdings Co. Ltd. Through Daesung Energy Co.,Ltd. Top agencies Army (Department of the Army)	$1,084,162	0.4%	Rank history: #62 in FY2021, #51 in FY2022, #42 in FY2023 and not on the FY2025 list; up 7 since FY2023.
36	Southwest Gas Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$1,073,429	0.4%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
37	Merrimac Petroleum, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$1,072,786	0.4%	Rank history: #54 in FY2021, #66 in FY2022, #63 in FY2023 and #54 in FY2025; up 26 since FY2023.
38	Hanjin Heavy Industries & Construction Holdings Co. Ltd. Through Daeryun E&S Co., Ltd. Top agencies Army (Department of the Army)	$1,037,717	0.4%	Rank history: #21 in FY2021, #31 in FY2022, #32 in FY2023 and #25 in FY2025; down 6 since FY2023.
39	Dominion Resources Inc. 3 awardees, including Dominion Energy South Carolina, Inc., Public Service Company of North Carolina, Incorporated and Questar Gas Company Top agencies Army (Department of the Army) DOJ (Department of Justice) USAF (Department of the Air Force)	$1,032,473	0.4%	Rank history: #24 in FY2021, #27 in FY2022, #28 in FY2023 and #56 in FY2025; down 11 since FY2023.
40	Xpress Natural Gas LLC Top agencies VA (Department of Veterans Affairs)	$891,459	0.3%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
41	Centerpoint Energy, Inc. 3 awardees, including Vectren LLC, Vectren Energy Delivery of Ohio, LLC and Centerpoint Energy Resources Corp. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) DOJ (Department of Justice)	$830,480	0.3%	Rank history: #46 in FY2021, #24 in FY2022, #43 in FY2023 and #79 in FY2025; up 2 since FY2023.
42	New Jersey Resources Corp 2 awardees, including New Jersey Natural Gas Company Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$809,780	0.3%	Rank history: #37 in FY2021, #50 in FY2022, #47 in FY2023 and #57 in FY2025; up 5 since FY2023.
43	Elevation Energy Group, LLC Top agencies VA (Department of Veterans Affairs)	$770,912	0.3%	Rank history: #38 in FY2021, #34 in FY2022, #39 in FY2023 and not on the FY2025 list; down 4 since FY2023.
44	Constellation Newenergy Inc Through Constellation Newenergy - Gas Division, LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) RRB (Railroad Retirement Board)	$762,129	0.3%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and not on the FY2025 list; down 10 since FY2023.
45	Tri-Mont Engineering Co. Top agencies USAF (Department of the Air Force)	$756,012	0.3%	Rank history: #34 in FY2021, #54 in FY2022, #46 in FY2023 and #36 in FY2025; up 1 since FY2023.
46	Mansfield Power & Gas LLC Top agencies DOJ (Department of Justice) GSA (General Services Administration) VA (Department of Veterans Affairs)	$737,504	0.3%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #18 in FY2025; up 48 since FY2023.
47	Duferco Energia S.P.a. Top agencies Army (Department of the Army)	$724,515	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
48	City of Philadelphia Top agencies Treasury (Department of the Treasury) GSA (General Services Administration) NARA (National Archives and Records Administration)	$716,508	0.3%	Rank history: #11 in FY2021, #4 in FY2022, #40 in FY2023 and #38 in FY2025; down 8 since FY2023.
49	Tiger Natural Gas Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$715,233	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; new.
50	National Grid PLC Through National Grid USA Service Company, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$654,992	0.2%	Rank history: not on the FY2021 list, #95 in FY2022, #33 in FY2023 and not on the FY2025 list; down 17 since FY2023.
51	Empire Natural Gas Corporation Top agencies VA (Department of Veterans Affairs)	$637,128	0.2%	Rank history: #78 in FY2021, #78 in FY2022, #62 in FY2023 and #43 in FY2025; up 11 since FY2023.
52	PS Energy Group, Inc. Top agencies DOJ (Department of Justice)	$602,571	0.2%	Rank history: #26 in FY2021, #25 in FY2022, #52 in FY2023 and #40 in FY2025; unchanged since FY2023.
53	West Coast Gas Company, Inc. Top agencies DOJ (Department of Justice)	$563,952	0.2%	Rank history: #33 in FY2021, #38 in FY2022, #31 in FY2023 and #32 in FY2025; down 22 since FY2023.
54	Southern California Gas Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) NARA (National Archives and Records Administration)	$545,320	0.2%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
55	AXP Energy Inc. Top agencies DOJ (Department of Justice)	$432,383	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #76 in FY2023 and not on the FY2025 list; up 21 since FY2023.
56	United Paradyne Corporation Top agencies Navy (Department of the Navy)	$420,863	0.1%	Rank history: #41 in FY2021, #43 in FY2022, #23 in FY2023 and not on the FY2025 list; down 33 since FY2023.
57	City of Leesburg Top agencies DOJ (Department of Justice)	$398,947	0.1%	Rank history: not on the FY2021 list, #56 in FY2022, #67 in FY2023 and not on the FY2025 list; up 10 since FY2023.
58	Marathon Power LLC Through Energo Power & Gas LLC Top agencies Treasury (Department of the Treasury)	$387,500	0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and not on the FY2025 list; up 13 since FY2023.
59	World Fuel Services Corp Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy)	$356,149	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Summit Utilities Oklahoma, Inc. Top agencies DOJ (Department of Justice)	$341,014	0.1%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2025; new.
61	Welch Gas Cooperative Association Top agencies DOJ (Department of Justice)	$338,256	0.1%	Rank history: #67 in FY2021, #72 in FY2022, #74 in FY2023 and #59 in FY2025; up 13 since FY2023.
62	MDU Resources Group, Inc. 3 awardees, including Cascade Natural Gas Corp and Montana Dakota Utilities Co Top agencies EPA (Environmental Protection Agency) DOI (Department of the Interior) HHS (Department of Health and Human Services)	$323,080	0.1%	Rank history: #73 in FY2021, #64 in FY2022, #78 in FY2023 and #46 in FY2025; up 16 since FY2023.
63	SAN Diego Gas & Electric Company 2 awardees, including Southern California Gas Company Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DOI (Department of the Interior)	$292,704	0.1%	Rank history: #29 in FY2021, #46 in FY2022, #48 in FY2023 and not on the FY2025 list; down 15 since FY2023.
64	Pickens County Natural Gas District Top agencies DOJ (Department of Justice)	$289,311	0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #79 in FY2023 and #52 in FY2025; up 15 since FY2023.
65	City of Las Cruces Top agencies NASA (National Aeronautics and Space Administration)	$280,000	0.1%	Rank history: #75 in FY2021, #81 in FY2022, #86 in FY2023 and #93 in FY2025; up 21 since FY2023.
66	Southern Company Gas Top agencies GSA (General Services Administration)	$277,789	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #83 in FY2023 and #65 in FY2025; up 17 since FY2023.
67	Northwest Natural Holding Company Through Northwest Natural Gas Co Top agencies DOI (Department of the Interior) DOE (Department of Energy) HHS (Department of Health and Human Services)	$272,017	0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #45 in FY2025; up 15 since FY2023.
68	Kentucky Frontier Gas, Llc. Top agencies DOJ (Department of Justice)	$266,871	0.1%	Rank history: #64 in FY2021, #61 in FY2022, #69 in FY2023 and #51 in FY2025; up 1 since FY2023.
69	Mountaineer Gas Co Top agencies DOL (Department of Labor) DOJ (Department of Justice)	$266,024	0.1%	Rank history: #69 in FY2021, not on the FY2022–FY2023 lists and #55 in FY2025; returned.
70	Nations Gas Technologies Inc Top agencies HHS (Department of Health and Human Services)	$265,833	0.1%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2025; up 52 since FY2023.
71	Ryuseki Corporation Top agencies USAF (Department of the Air Force)	$250,106	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #72 in FY2025; up 10 since FY2023.
72	Essential Utilities, Inc. 2 awardees, including Peoples Natural Gas Company LLC and Delta Natural Gas Co Inc. Top agencies DOJ (Department of Justice) DOE (Department of Energy)	$247,012	0.1%	Rank history: #79 in FY2021, #71 in FY2022, #57 in FY2023 and #76 in FY2025; down 15 since FY2023.
73	Alithos Anesti LLC Top agencies DHS (Department of Homeland Security)	$244,940	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	UNS Energy Corporation Through Central Hudson Gas & Electric Corporation Top agencies NARA (National Archives and Records Administration)	$242,935	0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
75	Public Service Electric and Gas Company Top agencies DOJ (Department of Justice)	$223,676	0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #49 in FY2025; down 21 since FY2023.
76	New Mexico Gas Company Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$221,582	0.1%	Rank history: #3 in FY2021, #22 in FY2022, #22 in FY2023 and not on the FY2025 list; down 54 since FY2023.
77	Xcel Energy Inc. Through Public Service Company of Colorado Top agencies Treasury (Department of the Treasury)	$200,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
78	The Peoples Gas Lght & Coke Co Top agencies SSA (Social Security Administration)	$200,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
79	Seoul City Gas Co.,Ltd. Top agencies Army (Department of the Army)	$179,207	0.1%	Rank history: #53 in FY2021, #59 in FY2022, not on the FY2023 list and #58 in FY2025; up 69 since FY2023.
80	Clearfield Ohio Holdings Inc Through Pike Natural Gas Co Top agencies DOE (Department of Energy)	$171,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Centerpoint Energy Resources Corp. Top agencies DOJ (Department of Justice)	$159,789	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
82	Ferrellgas Partners L.P. Through Ferrellgas, L.P Top agencies Navy (Department of the Navy)	$159,004	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Toro Partners II, LP Top agencies NASA (National Aeronautics and Space Administration)	$155,150	0.1%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2025; new.
84	Mansfield Energy Corp. Through Mansfield Power & Gas LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$145,473	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and not on the FY2025 list; down 40 since FY2023.
85	Kyungnam Energy Co. Ltd Top agencies Navy (Department of the Navy)	$132,039	<0.1%	Rank history: #12 in FY2021, #98 in FY2022, not on the FY2023 list and not on the FY2025 list; up 17 since FY2023.
86	The Southeast Alabama Gas District Top agencies Army (Department of the Army)	$128,141	<0.1%	Rank history: #92 in FY2021, #94 in FY2022, #100 in FY2023 and #92 in FY2025; up 14 since FY2023.
87	South Jersey Gas Co Top agencies DOJ (Department of Justice)	$126,970	<0.1%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; new.
88	Avista Corporation Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$120,215	<0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; up 25 since FY2023.
89	Toro Partners GP Inc. Through Toro Partners II, LP Top agencies NASA (National Aeronautics and Space Administration)	$118,730	<0.1%	Rank history: #30 in FY2021, #41 in FY2022, #49 in FY2023 and not on the FY2025 list; down 40 since FY2023.
90	Commercial Energy of Montana Inc. Top agencies HHS (Department of Health and Human Services)	$116,096	<0.1%	Rank history: #86 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 18 since FY2023.
91	Brooklyn Navy Yard Development Corp Top agencies DOJ (Department of Justice)	$113,803	<0.1%	Rank history: #76 in FY2021, not on the FY2022 list, #92 in FY2023 and #89 in FY2025; up 1 since FY2023.
92	The Narragansett Electric Company Top agencies Navy (Department of the Navy)	$113,525	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Vectren Energy Delivery of Ohio, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$111,937	<0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
94	MEC Services LLC Top agencies DOI (Department of the Interior)	$109,200	<0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2025; new.
95	Chopro K.K. Top agencies Navy (Department of the Navy)	$103,152	<0.1%	Rank history: #99 in FY2021, #97 in FY2022, #93 in FY2023 and not on the FY2025 list; down 2 since FY2023.
96	National Fuel Gas Co Through National Fuel Gas Distribution Corp Top agencies DOJ (Department of Justice)	$102,952	<0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; up 14 since FY2023.
97	Notch 8 LLC Top agencies HHS (Department of Health and Human Services)	$99,630	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Red River Resources LLC Top agencies Army (Department of the Army)	$94,672	<0.1%	Rank history: #65 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
99	Wisconsin Electric Power Co Top agencies DOJ (Department of Justice)	$93,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Delta Natural Gas Co Inc. Top agencies DOJ (Department of Justice)	$90,379	<0.1%	Rank history: #49 in FY2021, #82 in FY2022, not on the FY2023 list and #73 in FY2025; up 19 since FY2023.

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100 of 180 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 $286 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 221210 contractors in FY2024?

1. WGL Energy Services Inc. ($33.6M), 2. Centrica PLC ($17.7M), 3. Tokyo Gas Co.,Ltd. ($16.1M), 4. Schuyler Line Navigation Company LLC ($15.3M), 5. Buyo Gas Co.,Ltd. ($13.5M), 6. Foreign Utility Consolidated Reporting ($12M), 7. Eneos Sun-Energy Corporation ($10.6M), 8. Cobb Electric Membership Corporation ($9.2M), 9. The Navajo Nation Tribal Government ($8.52M), 10. Samchully Co.,Ltd. ($8.41M).

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