Top 100 Contractors in NAICS 22121: Natural Gas Distribution, FY2022

Name: Top 100 Contractors in NAICS 22121: Natural Gas Distribution, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 59% of FY2022 NAICS 22121 contract dollars

Contract obligations: $296,284,276 Net of deobligations, by contracts coded NAICS 22121 or a code under it
Contractors: 182 Parent companies with an obligation
Largest contractor: Tokyo Gas Co.,Ltd. $40.4 million, 12.8% 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	Tokyo Gas Co.,Ltd. Top agencies Navy (Department of the Navy)	$40,378,192	12.8%	Rank history: not on the FY2021 list, #2 in FY2023, #3 in FY2024 and #1 in FY2025; new.
2	WGL Energy Services Inc. 3 awardees, including Washington Gas Light Company and Semco Energy, Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Smithsonian (Smithsonian Institution)	$39,710,838	12.5%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since FY2021.
3	Constellation Newenergy - Gas Division LLC 2 awardees Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) GSA (General Services Administration)	$26,645,252	8.4%	Rank history: #35 in FY2021, #53 in FY2023, #26 in FY2024 and #16 in FY2025; up 32 since FY2021.
4	City of Philadelphia Top agencies DOI (Department of the Interior) Navy (Department of the Navy) Treasury (Department of the Treasury)	$16,791,579	5.3%	Rank history: #11 in FY2021, #40 in FY2023, #48 in FY2024 and #38 in FY2025; up 7 since FY2021.
5	Buyo Gas Co.,Ltd. 2 awardees, including Buyo Ekika Gas Co., Ltd. Top agencies USAF (Department of the Air Force)	$14,692,557	4.6%	Rank history: #10 in FY2021, #3 in FY2023, #5 in FY2024 and #6 in FY2025; up 5 since FY2021.
6	Foreign Utility Consolidated Reporting Top agencies Army (Department of the Army)	$10,703,649	3.4%	Rank history: #7 in FY2021, #4 in FY2023, #6 in FY2024 and #7 in FY2025; up 1 since FY2021.
7	Omega Pipeline Company, LLC Top agencies Army (Department of the Army)	$9,796,743	3.1%	Rank history: #4 in FY2021, #8 in FY2023, #13 in FY2024 and #12 in FY2025; down 3 since FY2021.
8	Samchully Co.,Ltd. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$9,529,816	3.0%	Rank history: #18 in FY2021, #6 in FY2023, #10 in FY2024 and #10 in FY2025; up 10 since FY2021.
9	Centerpoint Energy Services Inc. Through Nextera Energy Services Gas, LLC Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) NARA (National Archives and Records Administration)	$9,399,042	3.0%	Rank history: #9 in FY2021, #35 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
10	NRG Energy, Inc. 2 awardees, including NRG Business Marketing LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) GSA (General Services Administration)	$8,692,299	2.7%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #75 in FY2025; new.
11	UGI Corporation 5 awardees, including UGI Penn Natural Gas, Inc., UGI Energy Services, LLC and UGI Utilities Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) SSA (Social Security Administration)	$8,589,898	2.7%	Rank history: #20 in FY2021, #15 in FY2023, #23 in FY2024 and not on the FY2025 list; up 9 since FY2021.
12	Navajo Nation Tribal Government Through Navajo Tribal Utility Authority Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$7,862,950	2.5%	Rank history: #5 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
13	Sage Energy Trading LLC 2 awardees Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOE (Department of Energy)	$7,524,778	2.4%	Rank history: #8 in FY2021, #13 in FY2023, #14 in FY2024 and #23 in FY2025; down 5 since FY2021.
14	Fincantieri Marine Systems North America Inc. 2 awardees, including A.i.m. Energy S.R.L. Top agencies Army (Department of the Army)	$6,977,905	2.2%	Rank history: not on the FY2021 list, #21 in FY2023, #24 in FY2024 and not on the FY2025 list; up 115 since FY2021.
15	One Gas Inc. 4 awardees Top agencies Army (Department of the Army) DOJ (Department of Justice) Treasury (Department of the Treasury)	$4,930,254	1.6%	Rank history: #15 in FY2021, #14 in FY2023, #12 in FY2024 and #11 in FY2025; unchanged since FY2021.
16	Hydrogenics Corporation 2 awardees, including Liberty Utilities (Peach State Natural Gas) Corp. and Liberty Utilities (Energynorth Natural Gas) Corp. Top agencies Army (Department of the Army) DOJ (Department of Justice)	$4,137,300	1.3%	Rank history: #14 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
17	Georgia Power Company 3 awardees, including Southern Company Gas, Atlanta Gas Light Company and Southstar Energy Services LLC Top agencies NASA (National Aeronautics and Space Administration) GSA (General Services Administration) HHS (Department of Health and Human Services)	$3,015,413	1.0%	Rank history: #13 in FY2021, #11 in FY2023, #11 in FY2024 and #17 in FY2025; down 4 since FY2021.
18	Energetic SPA Top agencies Army (Department of the Army)	$2,957,076	0.9%	Rank history: #27 in FY2021, #24 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
19	Enspire Energy, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$2,898,830	0.9%	Rank history: #17 in FY2021, #26 in FY2023, #17 in FY2024 and #20 in FY2025; down 2 since FY2021.
20	Cobb Electric Membership Corporation Through Gas South, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) GSA (General Services Administration)	$2,729,237	0.9%	Rank history: #16 in FY2021, #7 in FY2023, #8 in FY2024 and #13 in FY2025; down 4 since FY2021.
21	Tiger Natural Gas, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOI (Department of the Interior)	$2,442,230	0.8%	Rank history: #19 in FY2021, #29 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
22	New Mexico Gas Company Inc. 2 awardees, including Peoples Gas System, Inc. Top agencies GSA (General Services Administration) Army (Department of the Army) USAF (Department of the Air Force)	$2,199,120	0.7%	Rank history: #3 in FY2021, #22 in FY2023, #76 in FY2024 and not on the FY2025 list; down 19 since FY2021.
23	The Gas Company, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) Navy (Department of the Navy)	$2,130,428	0.7%	Rank history: #57 in FY2021, #18 in FY2023 and not on the FY2024–FY2025 lists; up 34 since FY2021.
24	Centerpoint Energy, Inc. 3 awardees, including Vectren Energy Delivery of Ohio, LLC, Vectren LLC and Enable Gas Transmission LLC Top agencies Army (Department of the Army) Commerce (Department of Commerce) USAF (Department of the Air Force)	$1,958,314	0.6%	Rank history: #46 in FY2021, #43 in FY2023, #41 in FY2024 and #79 in FY2025; up 22 since FY2021.
25	PS Energy Group, Inc. Top agencies DOJ (Department of Justice)	$1,861,190	0.6%	Rank history: #26 in FY2021, #52 in FY2023, #52 in FY2024 and #40 in FY2025; up 1 since FY2021.
26	Dome Chartering & Trading Corp. Through Schuyler Line Navigation Company LLC Top agencies Navy (Department of the Navy)	$1,812,893	0.6%	Rank history: not on the FY2021 list, #12 in FY2023, #21 in FY2024 and not on the FY2025 list; new.
27	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) DOJ (Department of Justice) DOE (Department of Energy)	$1,773,962	0.6%	Rank history: #24 in FY2021, #28 in FY2023, #39 in FY2024 and #56 in FY2025; down 3 since FY2021.
28	Navajo Tribal Utility Authority Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$1,739,047	0.5%	Rank history: #84 in FY2021, #16 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2021.
29	Duke Energy Corporation 2 awardees, including Piedmont Natural Gas Company, Inc. and Duke Energy Ohio, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) GSA (General Services Administration)	$1,664,802	0.5%	Rank history: #56 in FY2021, #19 in FY2023, #16 in FY2024 and #19 in FY2025; up 27 since FY2021.
30	JX Holdings Inc. Through Eneos Corporation Top agencies USAF (Department of the Air Force)	$1,601,569	0.5%	Rank history: not on the FY2021 list, #45 in FY2023 and not on the FY2024–FY2025 lists; new.
31	Hanjin Heavy Industries & Construction Holdings Co. Ltd. Through Daeryun E&S Co., Ltd. Top agencies Army (Department of the Army)	$1,510,882	0.5%	Rank history: #21 in FY2021, #32 in FY2023, #38 in FY2024 and #25 in FY2025; down 10 since FY2021.
32	Exelon Corporation Through Constellation Newenergy - Gas Division, LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) NARA (National Archives and Records Administration)	$1,372,098	0.4%	Rank history: #6 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; down 26 since FY2021.
33	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)	$1,361,438	0.4%	Rank history: #43 in FY2021, #27 in FY2023, #32 in FY2024 and #44 in FY2025; up 10 since FY2021.
34	Elevation Energy Group, LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,308,408	0.4%	Rank history: #38 in FY2021, #39 in FY2023, #43 in FY2024 and not on the FY2025 list; up 4 since FY2021.
35	United Energy Corporation 2 awardees, including United Energy Trading, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,298,305	0.4%	Rank history: #31 in FY2021, #37 in FY2023, #25 in FY2024 and #5 in FY2025; down 4 since FY2021.
36	Atmos Energy Corporation Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$1,285,272	0.4%	Rank history: not on the FY2021 list, #41 in FY2023 and not on the FY2024–FY2025 lists; new.
37	Pickens County Natural Gas District Top agencies DOJ (Department of Justice)	$1,257,562	0.4%	Rank history: not on the FY2021 list, #79 in FY2023, #64 in FY2024 and #52 in FY2025; new.
38	West Coast Gas Company, Inc. Top agencies DOJ (Department of Justice)	$1,257,321	0.4%	Rank history: #33 in FY2021, #31 in FY2023, #53 in FY2024 and #32 in FY2025; down 5 since FY2021.
39	Nisource Inc. 5 awardees, including Columbia Gas of Virginia, Inc., Columbia Gas of Pennsylvania Inc. and Columbia Gas of Kentucky, Inc. Top agencies Smithsonian (Smithsonian Institution) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$1,242,513	0.4%	Rank history: #25 in FY2021, #30 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
40	Xpress Natural Gas LLC Top agencies VA (Department of Veterans Affairs)	$1,172,961	0.4%	Rank history: #28 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2021.
41	Toro Partners GP Inc. Through Toro Partners II, LP Top agencies NASA (National Aeronautics and Space Administration)	$1,033,323	0.3%	Rank history: #30 in FY2021, #49 in FY2023, #89 in FY2024 and not on the FY2025 list; down 11 since FY2021.
42	Southwest Gas Corporation Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$968,853	0.3%	Rank history: #70 in FY2021, #51 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2021.
43	United Paradyne Corp Top agencies Navy (Department of the Navy)	$953,712	0.3%	Rank history: #41 in FY2021, #23 in FY2023, #56 in FY2024 and not on the FY2025 list; down 2 since FY2021.
44	City of Marianna Top agencies DOJ (Department of Justice)	$841,824	0.3%	Rank history: #32 in FY2021, #58 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2021.
45	BSE Performance, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$827,835	0.3%	Rank history: #40 in FY2021, #38 in FY2023, #34 in FY2024 and #80 in FY2025; down 5 since FY2021.
46	SAN Diego Gas & Electric Company Through Southern California Gas Company Top agencies DOJ (Department of Justice) NARA (National Archives and Records Administration) DCMA (Defense Contract Management Agency)	$820,652	0.3%	Rank history: #29 in FY2021, #48 in FY2023, #63 in FY2024 and not on the FY2025 list; down 17 since FY2021.
47	Citipower, LLC Top agencies DOJ (Department of Justice)	$808,154	0.3%	Rank history: #42 in FY2021, #66 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
48	Natural Energy Utility Corp Top agencies DOJ (Department of Justice)	$786,450	0.2%	Rank history: #58 in FY2021, #56 in FY2023, not on the FY2024 list and #50 in FY2025; up 10 since FY2021.
49	East Coast Power & Gas, LLC Top agencies VA (Department of Veterans Affairs)	$785,000	0.2%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; up 47 since FY2021.
50	New Jersey Resources Corporation Through New Jersey Natural Gas Company Top agencies Navy (Department of the Navy)	$783,712	0.2%	Rank history: #37 in FY2021, #47 in FY2023, #42 in FY2024 and #57 in FY2025; down 13 since FY2021.
51	Daesung Holdings Co. Ltd. Through Daesung Energy Co.,Ltd. Top agencies Army (Department of the Army)	$778,091	0.2%	Rank history: #62 in FY2021, #42 in FY2023, #35 in FY2024 and not on the FY2025 list; up 11 since FY2021.
52	Wisconsin Electric 3 awardees, including The Peoples Gas Lght & Coke Co, Wisconsin Gas LLC and Minnesota Energy Resources Corporation Top agencies DOJ (Department of Justice) RRB (Railroad Retirement Board) SSA (Social Security Administration)	$771,347	0.2%	Rank history: #47 in FY2021, #70 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
53	City of Bennettsville Top agencies DOJ (Department of Justice)	$667,160	0.2%	Rank history: #77 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2021.
54	Tri-Mont Engineering Co. Top agencies USAF (Department of the Air Force)	$634,789	0.2%	Rank history: #34 in FY2021, #46 in FY2023, #45 in FY2024 and #36 in FY2025; down 20 since FY2021.
55	Massachusetts Development Finance Agency Top agencies DOJ (Department of Justice)	$629,092	0.2%	Rank history: #48 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
56	City of Leesburg Top agencies DOJ (Department of Justice)	$567,224	0.2%	Rank history: not on the FY2021 list, #67 in FY2023, #57 in FY2024 and not on the FY2025 list; new.
57	Colonial Group Inc. Through Colonial Energy Inc. Top agencies VA (Department of Veterans Affairs)	$557,296	0.2%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
58	Ameresco Inc. Through Ameresco Select, Inc. Top agencies Army (Department of the Army)	$477,167	0.2%	Rank history: #50 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
59	Seoul City Gas Co.,Ltd. Top agencies Army (Department of the Army)	$470,253	0.1%	Rank history: #53 in FY2021, not on the FY2023 list, #79 in FY2024 and #58 in FY2025; down 6 since FY2021.
60	Yesco Co.,Ltd Top agencies Army (Department of the Army)	$460,250	0.1%	Rank history: #39 in FY2021, #55 in FY2023, not on the FY2024 list and #77 in FY2025; down 21 since FY2021.
61	Kentucky Frontier Gas, Llc. Top agencies DOJ (Department of Justice)	$447,457	0.1%	Rank history: #64 in FY2021, #69 in FY2023, #68 in FY2024 and #51 in FY2025; up 3 since FY2021.
62	UEI DUQKYFJM9C94 Top agencies Army (Department of the Army)	$437,611	0.1%	Rank history: #52 in FY2021, #65 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
63	Northwest Natural Gas Company Top agencies DOJ (Department of Justice) DOI (Department of the Interior) DOE (Department of Energy)	$433,682	0.1%	Rank history: #66 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
64	MDU Resources Group, Inc. 4 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)	$433,681	0.1%	Rank history: #73 in FY2021, #78 in FY2023, #62 in FY2024 and #46 in FY2025; up 9 since FY2021.
65	TV Guy Orlando, LLC Top agencies DOJ (Department of Justice)	$420,002	0.1%	Rank history: #71 in FY2021 and not on the FY2023–FY2025 lists; up 6 since FY2021.
66	Merrimac Petroleum, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$419,744	0.1%	Rank history: #54 in FY2021, #63 in FY2023, #37 in FY2024 and #54 in FY2025; down 12 since FY2021.
67	JPC Energy, LLC Top agencies DOJ (Department of Justice)	$412,203	0.1%	Rank history: #74 in FY2021, #73 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
68	Energymark LLC Top agencies VA (Department of Veterans Affairs)	$396,938	0.1%	Rank history: #51 in FY2021 and not on the FY2023–FY2025 lists; down 17 since FY2021.
69	Amerigas Propane L.P. 2 awardees, including UGI Utilities Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$380,925	0.1%	Rank history: not on the FY2021 list, #20 in FY2023, #20 in FY2024 and #22 in FY2025; new.
70	Public Service Enterprise Group Incorporated Through Public Service Electric and Gas Company Top agencies DOJ (Department of Justice)	$360,000	0.1%	Rank history: #63 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
71	Essential Utilities, Inc. Through Peoples Natural Gas Company LLC Top agencies DOE (Department of Energy) DOJ (Department of Justice)	$358,385	0.1%	Rank history: #79 in FY2021, #57 in FY2023, #72 in FY2024 and #76 in FY2025; up 8 since FY2021.
72	Welch Gas Cooperative Association Top agencies DOJ (Department of Justice)	$355,852	0.1%	Rank history: #67 in FY2021, #74 in FY2023, #61 in FY2024 and #59 in FY2025; down 5 since FY2021.
73	World Fuel Services Corporation Top agencies VA (Department of Veterans Affairs)	$307,769	0.1%	Rank history: not on the FY2021 list, #77 in FY2023 and not on the FY2024–FY2025 lists; new.
74	UGI Energy Services, LLC Top agencies VA (Department of Veterans Affairs)	$300,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 49 since FY2021.
75	Southern Company Gas Top agencies GSA (General Services Administration)	$264,403	0.1%	Rank history: not on the FY2021 list, #83 in FY2023, #66 in FY2024 and #65 in FY2025; new.
76	Jo-Carroll Energy, Inc. Top agencies DOJ (Department of Justice) Army (Department of the Army)	$262,583	0.1%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 21 since FY2021.
77	Wells Capital Llc. Top agencies Commerce (Department of Commerce)	$250,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
78	Empire Natural Gas Corporation Top agencies VA (Department of Veterans Affairs)	$245,935	0.1%	Rank history: #78 in FY2021, #62 in FY2023, #51 in FY2024 and #43 in FY2025; unchanged since FY2021.
79	Tauber Oil Company Through Interconn Resources LLC Top agencies DOJ (Department of Justice)	$245,662	0.1%	Rank history: #45 in FY2021 and not on the FY2023–FY2025 lists; down 34 since FY2021.
80	South Jersey Industries Inc. Through South Jersey Gas Co Top agencies DOJ (Department of Justice)	$240,000	0.1%	Rank history: #80 in FY2021, #87 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
81	City of Las Cruces Top agencies NASA (National Aeronautics and Space Administration)	$223,000	0.1%	Rank history: #75 in FY2021, #86 in FY2023, #65 in FY2024 and #93 in FY2025; down 6 since FY2021.
82	Delta Natural Gas Company Inc. 2 awardees Top agencies DOJ (Department of Justice)	$221,529	0.1%	Rank history: #49 in FY2021, not on the FY2023 list, #100 in FY2024 and #73 in FY2025; down 33 since FY2021.
83	Zorzetto Mario SRL Top agencies USAF (Department of the Air Force)	$214,667	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
84	Arapaho Communications. LP Top agencies DOJ (Department of Justice)	$214,666	0.1%	Rank history: #22 in FY2021 and not on the FY2023–FY2025 lists; down 62 since FY2021.
85	Berkshire Hathaway Inc. Through Mid American Energy Company Top agencies DOJ (Department of Justice)	$208,592	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
86	Southwestern Energy Company Inc Through AXP Energy, Inc. Top agencies DOJ (Department of Justice)	$201,645	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	City of Duluth Top agencies DOJ (Department of Justice)	$200,555	0.1%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
88	Pacific LP Gas Top agencies Navy (Department of the Navy) DODEA (Department of Defense Education Activity)	$176,784	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 36 since FY2021.
89	Liberty Utilities (Energynorth Natural Gas) Corp. Top agencies DOJ (Department of Justice)	$159,000	0.1%	Rank history: #94 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
90	Xcel Energy Through Public Service Company of Colorado Top agencies Treasury (Department of the Treasury)	$153,936	<0.1%	Rank history: #85 in FY2021, #80 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
91	C & G LLC Top agencies Commerce (Department of Commerce)	$147,163	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #97 in FY2025; up 16 since FY2021.
92	AXP Energy, Inc. Top agencies DOJ (Department of Justice)	$132,713	<0.1%	Rank history: not on the FY2021 list, #76 in FY2023, #55 in FY2024 and not on the FY2025 list; new.
93	Precision Pipeline Solutions, LLC Top agencies Army (Department of the Army)	$124,505	<0.1%	Rank history: #91 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
94	The Southeast Alabama Gas District Top agencies Army (Department of the Army)	$107,617	<0.1%	Rank history: #92 in FY2021, #100 in FY2023, #86 in FY2024 and #92 in FY2025; down 2 since FY2021.
95	National Grid PLC 3 awardees, including Keyspan Gas East Corporation Top agencies Treasury (Department of the Treasury)	$99,685	<0.1%	Rank history: not on the FY2021 list, #33 in FY2023, #50 in FY2024 and not on the FY2025 list; new.
96	Suburban Propane Partners, L.P Top agencies Army (Department of the Army)	$99,350	<0.1%	Rank history: #89 in FY2021, #96 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
97	Chopro K.K. Top agencies Navy (Department of the Navy)	$97,085	<0.1%	Rank history: #99 in FY2021, #93 in FY2023, #95 in FY2024 and not on the FY2025 list; up 2 since FY2021.
98	Kyungnam Energy Co. Ltd Top agencies Navy (Department of the Navy)	$95,437	<0.1%	Rank history: #12 in FY2021, not on the FY2023 list, #85 in FY2024 and not on the FY2025 list; down 86 since FY2021.
99	City of Clarksville Gas & Wate Top agencies Army (Department of the Army)	$94,164	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	National Fuel Gas Company Through National Fuel Gas Distribution Corp Top agencies DOJ (Department of Justice)	$93,166	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 10 since FY2021.

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100 of 182 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 22121

Code	Net obligations	Largest contractor
221210 Natural Gas Distribution	$296,284,276	Tokyo Gas Co.,Ltd.

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 $317 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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 22121 contractors in FY2022?

1. Tokyo Gas Co.,Ltd. ($40.4M), 2. WGL Energy Services Inc. ($39.7M), 3. Constellation Newenergy - Gas Division LLC ($26.6M), 4. City of Philadelphia ($16.8M), 5. Buyo Gas Co.,Ltd. ($14.7M), 6. Foreign Utility Consolidated Reporting ($10.7M), 7. Omega Pipeline Company, LLC ($9.8M), 8. Samchully Co.,Ltd. ($9.53M), 9. Centerpoint Energy Services Inc. ($9.4M), 10. NRG Energy, Inc. ($8.69M).

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