Top 100 Contractors in NAICS 221210: Natural Gas Distribution, FY2023

Name: Top 100 Contractors in NAICS 221210: Natural Gas Distribution, FY2023
Creator: GovTribe

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

The top 10 won 59% of FY2023 NAICS 221210 contract dollars

Contract obligations: $323,477,738 Net of deobligations, by contracts coded NAICS 221210
Contractors: 170 Parent companies with an obligation
Largest contractor: WGL Energy Services Inc. $70.5 million, 20.1% 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. 3 awardees, including Washington Gas Light Company and Semco Energy, Inc. Top agencies USAF (Department of the Air Force) GSA (General Services Administration) HHS (Department of Health and Human Services)	$70,544,304	20.1%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2024 and #2 in FY2025; up 1 since FY2022.
2	Tokyo Gas Co.,Ltd. Top agencies Navy (Department of the Navy)	$39,773,936	11.3%	Rank history: not on the FY2021 list, #1 in FY2022, #3 in FY2024 and #1 in FY2025; down 1 since FY2022.
3	Buyo Gas Co.,Ltd. 2 awardees, including Buyo Ekika Gas Co., Ltd. Top agencies USAF (Department of the Air Force)	$16,869,032	4.8%	Rank history: #10 in FY2021, #5 in FY2022, #5 in FY2024 and #6 in FY2025; up 2 since FY2022.
4	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$15,836,012	4.5%	Rank history: #7 in FY2021, #6 in FY2022, #6 in FY2024 and #7 in FY2025; up 2 since FY2022.
5	NRG Business Marketing LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) EPA (Environmental Protection Agency)	$14,687,277	4.2%	Rank history: #61 in FY2021, not on the FY2022 list, #19 in FY2024 and #3 in FY2025; up 156 since FY2022.
6	Samchully Co.,Ltd. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$11,911,231	3.4%	Rank history: #18 in FY2021, #8 in FY2022, #10 in FY2024 and #10 in FY2025; up 2 since FY2022.
7	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)	$10,226,377	2.9%	Rank history: #16 in FY2021, #20 in FY2022, #8 in FY2024 and #13 in FY2025; up 13 since FY2022.
8	Omega Pipeline Company, LLC Top agencies Army (Department of the Army)	$9,831,825	2.8%	Rank history: #4 in FY2021, #7 in FY2022, #13 in FY2024 and #12 in FY2025; down 1 since FY2022.
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)	$9,078,804	2.6%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and #15 in FY2025; new.
10	Centrica PLC 2 awardees, including NRG Business Marketing LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$8,734,295	2.5%	Rank history: #2 in FY2021, not on the FY2022 list, #2 in FY2024 and not on the FY2025 list; up 119 since FY2022.
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) HHS (Department of Health and Human Services)	$8,203,079	2.3%	Rank history: #13 in FY2021, #17 in FY2022, #11 in FY2024 and #17 in FY2025; up 6 since FY2022.
12	Dome Chartering & Trading Corp. Through Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy)	$7,844,692	2.2%	Rank history: not on the FY2021 list, #26 in FY2022, #21 in FY2024 and not on the FY2025 list; up 14 since FY2022.
13	Sage Energy Trading LLC 2 awardees Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOE (Department of Energy)	$5,927,892	1.7%	Rank history: #8 in FY2021, #13 in FY2022, #14 in FY2024 and #23 in FY2025; unchanged since FY2022.
14	One Gas Inc. 3 awardees Top agencies Army (Department of the Army) DOJ (Department of Justice) NARA (National Archives and Records Administration)	$4,885,345	1.4%	Rank history: #15 in FY2021, #15 in FY2022, #12 in FY2024 and #11 in FY2025; up 1 since FY2022.
15	UGI Corporation 4 awardees, including UGI Energy Services, LLC and Mountaineer Gas Co Top agencies VA (Department of Veterans Affairs) SSA (Social Security Administration) DOJ (Department of Justice)	$4,796,471	1.4%	Rank history: #20 in FY2021, #11 in FY2022, #23 in FY2024 and not on the FY2025 list; down 4 since FY2022.
16	Navajo Tribal Utility Authority Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$4,439,841	1.3%	Rank history: #84 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
17	Hydrogenics Corporation 2 awardees, including Liberty Utilities (Peach State Natural Gas) Corp. and Liberty Utilities (Granite State Electric) Corp. Top agencies Army (Department of the Army) DOJ (Department of Justice)	$3,887,358	1.1%	Rank history: #14 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
18	The Gas Company, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice)	$3,232,436	0.9%	Rank history: #57 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
19	Duke Energy Corporation 2 awardees, including Piedmont Natural Gas Company, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,176,662	0.9%	Rank history: #56 in FY2021, #29 in FY2022, #16 in FY2024 and #19 in FY2025; up 10 since FY2022.
20	Amerigas Propane L.P. 2 awardees, including UGI Utilities Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOJ (Department of Justice)	$3,034,148	0.9%	Rank history: not on the FY2021 list, #69 in FY2022, #20 in FY2024 and #22 in FY2025; up 49 since FY2022.
21	Fincantieri Marine Systems North America Inc. Through A.i.m. Energy S.R.L. Top agencies Army (Department of the Army)	$2,909,433	0.8%	Rank history: not on the FY2021 list, #14 in FY2022, #24 in FY2024 and not on the FY2025 list; down 7 since FY2022.
22	New Mexico Gas Company Inc. 2 awardees, including Peoples Gas System, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) GSA (General Services Administration)	$2,838,115	0.8%	Rank history: #3 in FY2021, #22 in FY2022, #76 in FY2024 and not on the FY2025 list; unchanged since FY2022.
23	United Paradyne Corp 2 awardees Top agencies Navy (Department of the Navy)	$2,739,161	0.8%	Rank history: #41 in FY2021, #43 in FY2022, #56 in FY2024 and not on the FY2025 list; up 20 since FY2022.
24	Energetic SPA Top agencies Army (Department of the Army)	$2,282,282	0.6%	Rank history: #27 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
25	City Utilities of Springfield Top agencies DOJ (Department of Justice)	$2,196,905	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
26	Enspire Energy, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$2,194,489	0.6%	Rank history: #17 in FY2021, #19 in FY2022, #17 in FY2024 and #20 in FY2025; down 7 since FY2022.
27	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)	$2,109,945	0.6%	Rank history: #43 in FY2021, #33 in FY2022, #32 in FY2024 and #44 in FY2025; up 6 since FY2022.
28	Dominion Resources Inc. 4 awardees, including Dominion Energy South Carolina, Inc., Hope Gas, Inc. and Public Service Company of North Carolina, Incorporated Top agencies Army (Department of the Army) DOE (Department of Energy) DOJ (Department of Justice)	$2,026,303	0.6%	Rank history: #24 in FY2021, #27 in FY2022, #39 in FY2024 and #56 in FY2025; down 1 since FY2022.
29	Tiger Natural Gas, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOI (Department of the Interior)	$2,002,334	0.6%	Rank history: #19 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
30	Nisource Inc. 4 awardees, including Columbia Gas of Virginia, Inc., Columbia Gas of Pennsylvania Inc. and Columbia Gas of Kentucky, Inc. Top agencies DOJ (Department of Justice) Smithsonian (Smithsonian Institution) HHS (Department of Health and Human Services)	$1,902,025	0.5%	Rank history: #25 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
31	West Coast Gas Company, Inc. Top agencies DOJ (Department of Justice)	$1,855,009	0.5%	Rank history: #33 in FY2021, #38 in FY2022, #53 in FY2024 and #32 in FY2025; up 7 since FY2022.
32	Hanjin Heavy Industries & Construction Holdings Co. Ltd. 2 awardees, including Daeryun E&S Co., Ltd. Top agencies Army (Department of the Army)	$1,811,570	0.5%	Rank history: #21 in FY2021, #31 in FY2022, #38 in FY2024 and #25 in FY2025; down 1 since FY2022.
33	National Grid PLC 3 awardees, including National Grid USA Service Company, Inc. and Keyspan Gas East Corporation Top agencies DOJ (Department of Justice) DOT (Department of Transportation) Treasury (Department of the Treasury)	$1,733,685	0.5%	Rank history: not on the FY2021 list, #95 in FY2022, #50 in FY2024 and not on the FY2025 list; up 62 since FY2022.
34	Constellation Newenergy Inc Through Constellation Newenergy - Gas Division, LLC Top agencies DOJ (Department of Justice) NARA (National Archives and Records Administration) RRB (Railroad Retirement Board)	$1,677,297	0.5%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2024 and not on the FY2025 list; new.
35	Centerpoint Energy Services Inc. Through Nextera Energy Services Gas, LLC Top agencies DOJ (Department of Justice) NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs)	$1,403,075	0.4%	Rank history: #9 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
36	Xpress Natural Gas LLC Top agencies VA (Department of Veterans Affairs)	$1,262,528	0.4%	Rank history: #28 in FY2021, #40 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
37	United Energy Corporation Through United Energy Trading, LLC Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs) GSA (General Services Administration)	$1,251,806	0.4%	Rank history: #31 in FY2021, #35 in FY2022, #25 in FY2024 and #5 in FY2025; down 2 since FY2022.
38	BSE Performance, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$1,163,310	0.3%	Rank history: #40 in FY2021, #45 in FY2022, #34 in FY2024 and #80 in FY2025; up 7 since FY2022.
39	Elevation Energy Group, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,160,368	0.3%	Rank history: #38 in FY2021, #34 in FY2022, #43 in FY2024 and not on the FY2025 list; down 5 since FY2022.
40	City of Philadelphia Top agencies DOI (Department of the Interior) Treasury (Department of the Treasury) GSA (General Services Administration)	$1,124,354	0.3%	Rank history: #11 in FY2021, #4 in FY2022, #48 in FY2024 and #38 in FY2025; down 36 since FY2022.
41	Atmos Energy Corporation Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$1,104,878	0.3%	Rank history: not on the FY2021 list, #36 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
42	Daesung Holdings Co. Ltd. Through Daesung Energy Co.,Ltd. Top agencies Army (Department of the Army)	$1,073,928	0.3%	Rank history: #62 in FY2021, #51 in FY2022, #35 in FY2024 and not on the FY2025 list; up 9 since FY2022.
43	Centerpoint Energy, Inc. 3 awardees, including Vectren Energy Delivery of Ohio, LLC, Vectren LLC and Enable Gas Transmission LLC Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) Army (Department of the Army)	$1,054,044	0.3%	Rank history: #46 in FY2021, #24 in FY2022, #41 in FY2024 and #79 in FY2025; down 19 since FY2022.
44	Mansfield Energy Corp. Through Mansfield Power & Gas LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,038,960	0.3%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and not on the FY2025 list; new.
45	JX Holdings Inc. Through Eneos Corporation Top agencies USAF (Department of the Air Force)	$1,013,151	0.3%	Rank history: not on the FY2021 list, #30 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
46	Tri-Mont Engineering Co. Top agencies USAF (Department of the Air Force)	$948,586	0.3%	Rank history: #34 in FY2021, #54 in FY2022, #45 in FY2024 and #36 in FY2025; up 8 since FY2022.
47	New Jersey Resources Corporation Through New Jersey Natural Gas Company Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$820,765	0.2%	Rank history: #37 in FY2021, #50 in FY2022, #42 in FY2024 and #57 in FY2025; up 3 since FY2022.
48	SAN Diego Gas & Electric Company Through Southern California Gas Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) NARA (National Archives and Records Administration)	$815,779	0.2%	Rank history: #29 in FY2021, #46 in FY2022, #63 in FY2024 and not on the FY2025 list; down 2 since FY2022.
49	Toro Partners GP Inc. Through Toro Partners II, LP Top agencies NASA (National Aeronautics and Space Administration)	$808,146	0.2%	Rank history: #30 in FY2021, #41 in FY2022, #89 in FY2024 and not on the FY2025 list; down 8 since FY2022.
50	City of Bennettsville Top agencies DOJ (Department of Justice)	$799,615	0.2%	Rank history: #77 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
51	Southwest Gas Corporation Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$778,001	0.2%	Rank history: #70 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
52	PS Energy Group, Inc. Top agencies DOJ (Department of Justice)	$735,879	0.2%	Rank history: #26 in FY2021, #25 in FY2022, #52 in FY2024 and #40 in FY2025; down 27 since FY2022.
53	Constellation Newenergy - Gas Division, LLC Top agencies DOJ (Department of Justice) GSA (General Services Administration) RRB (Railroad Retirement Board)	$700,040	0.2%	Rank history: #35 in FY2021, #3 in FY2022, #26 in FY2024 and #16 in FY2025; down 50 since FY2022.
54	Public Service Electric and Gas Company Top agencies DOJ (Department of Justice)	$689,789	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and #49 in FY2025; new.
55	Yesco Co.,Ltd Top agencies Army (Department of the Army)	$647,026	0.2%	Rank history: #39 in FY2021, #60 in FY2022, not on the FY2024 list and #77 in FY2025; up 5 since FY2022.
56	Natural Energy Utility Corp Top agencies DOJ (Department of Justice)	$640,053	0.2%	Rank history: #58 in FY2021, #48 in FY2022, not on the FY2024 list and #50 in FY2025; down 8 since FY2022.
57	Essential Utilities, Inc. 2 awardees, including Peoples Natural Gas Company LLC and Delta Natural Gas Co Inc. Top agencies DOE (Department of Energy) DOJ (Department of Justice)	$601,604	0.2%	Rank history: #79 in FY2021, #71 in FY2022, #72 in FY2024 and #76 in FY2025; up 14 since FY2022.
58	City of Marianna Top agencies DOJ (Department of Justice)	$574,270	0.2%	Rank history: #32 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
59	Summit Utilities Arkansas, Inc. Top agencies DOJ (Department of Justice)	$559,400	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	United Energy Trading, LLC Top agencies VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$544,873	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	Exelon Corporation 3 awardees, including Constellation Newenergy - Gas Division, LLC and Constellation Newenergy Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$540,827	0.2%	Rank history: #6 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; down 29 since FY2022.
62	Empire Natural Gas Corporation Top agencies VA (Department of Veterans Affairs)	$515,175	0.1%	Rank history: #78 in FY2021, #78 in FY2022, #51 in FY2024 and #43 in FY2025; up 16 since FY2022.
63	Merrimac Petroleum, Inc. Top agencies DHS (Department of Homeland Security) DOI (Department of the Interior) Navy (Department of the Navy)	$492,525	0.1%	Rank history: #54 in FY2021, #66 in FY2022, #37 in FY2024 and #54 in FY2025; up 3 since FY2022.
64	Massachusetts Development Finance Agency Top agencies DOJ (Department of Justice)	$491,632	0.1%	Rank history: #48 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
65	UEI DUQKYFJM9C94 Top agencies Army (Department of the Army)	$483,648	0.1%	Rank history: #52 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
66	Citipower, LLC Top agencies DOJ (Department of Justice)	$468,499	0.1%	Rank history: #42 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
67	City of Leesburg Top agencies DOJ (Department of Justice)	$463,079	0.1%	Rank history: not on the FY2021 list, #56 in FY2022, #57 in FY2024 and not on the FY2025 list; down 11 since FY2022.
68	Colonial Terminals, Inc. Through Colonial Energy Inc. Top agencies VA (Department of Veterans Affairs)	$456,965	0.1%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and not on the FY2025 list; new.
69	Kentucky Frontier Gas, Llc. Top agencies DOJ (Department of Justice)	$412,855	0.1%	Rank history: #64 in FY2021, #61 in FY2022, #68 in FY2024 and #51 in FY2025; down 8 since FY2022.
70	Wisconsin Electric 4 awardees, including The Peoples Gas Lght & Coke Co and Wisconsin Electric Power Co Top agencies DOJ (Department of Justice) SSA (Social Security Administration) RRB (Railroad Retirement Board)	$397,501	0.1%	Rank history: #47 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
71	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, #58 in FY2024 and not on the FY2025 list; new.
72	Northwest Natural Gas Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) DOE (Department of Energy)	$383,577	0.1%	Rank history: #66 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
73	JPC Energy, LLC Top agencies DOJ (Department of Justice)	$380,981	0.1%	Rank history: #74 in FY2021, #67 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
74	Welch Gas Cooperative Association Top agencies DOJ (Department of Justice)	$380,086	0.1%	Rank history: #67 in FY2021, #72 in FY2022, #61 in FY2024 and #59 in FY2025; down 2 since FY2022.
75	Peoples Natural Gas Company LLC Top agencies DOE (Department of Energy) DOJ (Department of Justice)	$371,774	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 91 since FY2022.
76	AXP Energy Inc. 2 awardees Top agencies DOJ (Department of Justice)	$363,580	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #55 in FY2024 and not on the FY2025 list; up 16 since FY2022.
77	World Fuel Services Corporation Top agencies VA (Department of Veterans Affairs)	$357,782	0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
78	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)	$340,147	0.1%	Rank history: #73 in FY2021, #64 in FY2022, #62 in FY2024 and #46 in FY2025; down 14 since FY2022.
79	Pickens County Natural Gas District Top agencies DOJ (Department of Justice)	$335,946	0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #64 in FY2024 and #52 in FY2025; down 42 since FY2022.
80	Xcel Energy Inc. 2 awardees, including Public Service Company of Colorado Top agencies Treasury (Department of the Treasury)	$315,182	0.1%	Rank history: #85 in FY2021, #90 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
81	Ryuseki Corporation Top agencies USAF (Department of the Air Force)	$311,202	0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and #72 in FY2025; new.
82	Northwest Natural Holding Company Through Northwest Natural Gas Co Top agencies DOJ (Department of Justice) DOE (Department of Energy) HHS (Department of Health and Human Services)	$300,284	0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #45 in FY2025; new.
83	Southern Company Gas Top agencies GSA (General Services Administration)	$277,789	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #66 in FY2024 and #65 in FY2025; down 8 since FY2022.
84	UGI Utilities Inc. Top agencies DOJ (Department of Justice)	$274,801	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 17 since FY2022.
85	Sawyer Services Inc Top agencies USAF (Department of the Air Force)	$237,760	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	City of Las Cruces Top agencies NASA (National Aeronautics and Space Administration)	$237,176	0.1%	Rank history: #75 in FY2021, #81 in FY2022, #65 in FY2024 and #93 in FY2025; down 5 since FY2022.
87	South Jersey Industries Inc. Through South Jersey Gas Co Top agencies DOJ (Department of Justice)	$208,513	0.1%	Rank history: #80 in FY2021, #80 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
88	Liberty Utilities (Granite State Electric) Corp. Top agencies DOJ (Department of Justice)	$182,199	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	City of Clarksville Top agencies Army (Department of the Army)	$180,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2024 and #39 in FY2025; new.
90	Mid American Energy Company Top agencies DOI (Department of the Interior)	$170,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Mccreary County Water District Top agencies DOJ (Department of Justice)	$165,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Brooklyn Navy Yard Development Corp Top agencies DOJ (Department of Justice)	$133,650	<0.1%	Rank history: #76 in FY2021, not on the FY2022 list, #91 in FY2024 and #89 in FY2025; up 39 since FY2022.
93	Chopro K.K. Top agencies Navy (Department of the Navy)	$126,206	<0.1%	Rank history: #99 in FY2021, #97 in FY2022, #95 in FY2024 and not on the FY2025 list; up 4 since FY2022.
94	Mansfield Power & Gas LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$112,815	<0.1%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2024 and #18 in FY2025; new.
95	J. Swanton Fuel Oil Co., Inc. Top agencies Commerce (Department of Commerce)	$110,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #94 in FY2025; new.
96	Suburban Propane Partners, L.P Top agencies Army (Department of the Army) Navy (Department of the Navy)	$109,647	<0.1%	Rank history: #89 in FY2021, #96 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
97	AMG Company, Inc. Top agencies DOI (Department of the Interior)	$104,343	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 51 since FY2022.
98	Black Hills Corporation 3 awardees, including Black Hills Wyoming Gas, LLC, Black Hills Utility Holdings Inc. and Black Hills Colorado Gas Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$102,380	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 20 since FY2022.
99	Energy Transfer Equity L.P. Through Trunkline Gas Company, LLC Top agencies NARA (National Archives and Records Administration)	$101,323	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	The Southeast Alabama Gas District Top agencies Army (Department of the Army)	$96,859	<0.1%	Rank history: #92 in FY2021, #94 in FY2022, #86 in FY2024 and #92 in FY2025; down 6 since FY2022.

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100 of 170 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 $351 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 221210 contractors in FY2023?

1. WGL Energy Services Inc. ($70.5M), 2. Tokyo Gas Co.,Ltd. ($39.8M), 3. Buyo Gas Co.,Ltd. ($16.9M), 4. Foreign Utility Consolidated Reporting ($15.8M), 5. NRG Business Marketing LLC ($14.7M), 6. Samchully Co.,Ltd. ($11.9M), 7. Cobb Electric Membership Corporation ($10.2M), 8. Omega Pipeline Company, LLC ($9.83M), 9. The Navajo Nation Tribal Government ($9.08M), 10. Centrica PLC ($8.73M).

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