Top 100 Contractors in NAICS 335921: Fiber Optic Cable Manufacturing, FY2023

Name: Top 100 Contractors in NAICS 335921: Fiber Optic Cable Manufacturing, FY2023
Creator: GovTribe

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

The top 10 won 70% of FY2023 NAICS 335921 contract dollars

Contract obligations: $27,429,050 Net of deobligations, by contracts coded NAICS 335921
Contractors: 148 Parent companies with an obligation
Largest contractor: Fiber Business Solutions Group Inc. $8.22 million, 29.4% 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	Fiber Business Solutions Group Inc. Top agencies Army (Department of the Army)	$8,224,762	29.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
2	Teledyne Technologies Incorporated 2 awardees, including Teledyne Instruments Inc. and Teledyne Defense Electronics, LLC Top agencies Navy (Department of the Navy)	$2,351,106	8.4%	Rank history: #22 in FY2021, #51 in FY2022, #71 in FY2024 and not on the FY2025 list; up 49 since FY2022.
3	Emridge Technology LLC Top agencies USAF (Department of the Air Force)	$2,279,695	8.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
4	Norseman Inc. Top agencies DOJ (Department of Justice)	$1,341,926	4.8%	Rank history: #9 in FY2021, #3 in FY2022, #25 in FY2024 and not on the FY2025 list; down 1 since FY2022.
5	MCC Industries Inc. Top agencies DOE (Department of Energy)	$1,052,450	3.8%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and #71 in FY2025; new.
6	Seneca Holdings LLC Through Seneca Telecommunications, LLC Top agencies DOT (Department of Transportation)	$1,033,662	3.7%	Rank history: #86 in FY2021, #41 in FY2022 and not on the FY2024–FY2025 lists; up 35 since FY2022.
7	Murray Benjamin Electric Company LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$963,696	3.4%	Rank history: #7 in FY2021, #4 in FY2022, #7 in FY2024 and #9 in FY2025; down 3 since FY2022.
8	Usmilcom, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$894,274	3.2%	Rank history: not on the FY2021 list, #85 in FY2022, #1 in FY2024 and #2 in FY2025; up 77 since FY2022.
9	Carlo Lachmansingh Sales Inc. Top agencies DOE (Department of Energy)	$861,280	3.1%	Rank history: #5 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
10	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$586,395	2.1%	Rank history: not on the FY2021 list, #9 in FY2022, #6 in FY2024 and #4 in FY2025; down 1 since FY2022.
11	EHB Supply Top agencies Navy (Department of the Navy)	$447,542	1.6%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and #70 in FY2025; new.
12	WB Brawley Co Top agencies USAF (Department of the Air Force)	$443,950	1.6%	Rank history: not on the FY2021 list, #57 in FY2022, #23 in FY2024 and #5 in FY2025; up 45 since FY2022.
13	Optical Cable Corp 2 awardees, including Applied Optical Systems Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$343,380	1.2%	Rank history: #18 in FY2021, #8 in FY2022, #35 in FY2024 and not on the FY2025 list; down 5 since FY2022.
14	South Bay Wire and Cable Company, LLC Top agencies Navy (Department of the Navy)	$340,054	1.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
15	FIS Blue, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$318,508	1.1%	Rank history: #2 in FY2021, #10 in FY2022, #4 in FY2024 and not on the FY2025 list; down 5 since FY2022.
16	Vescent Photonics LLC Through Vescent Technologies Inc. Top agencies Navy (Department of the Navy)	$282,562	1.0%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
17	General Reliance Corp Top agencies Navy (Department of the Navy)	$233,547	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
18	Murray Timothy Through Supply Solutions International, Inc. Top agencies Navy (Department of the Navy)	$231,870	0.8%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and not on the FY2025 list; new.
19	US21 Inc Top agencies Army (Department of the Army)	$227,425	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
20	Wisecom Technologies Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$213,991	0.8%	Rank history: #31 in FY2021, #53 in FY2022, #36 in FY2024 and not on the FY2025 list; up 33 since FY2022.
21	Intelligent International Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) DOT (Department of Transportation)	$202,397	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
22	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$192,572	0.7%	Rank history: #47 in FY2021, #91 in FY2022, #38 in FY2024 and #68 in FY2025; up 69 since FY2022.
23	Bahfed Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$186,784	0.7%	Rank history: not on the FY2021 list, #16 in FY2022, #24 in FY2024 and not on the FY2025 list; down 7 since FY2022.
24	ADI American Distributors, LLC Through Newvac, LLC Top agencies Navy (Department of the Navy)	$183,260	0.7%	Rank history: not on the FY2021 list, #37 in FY2022, #51 in FY2024 and not on the FY2025 list; up 13 since FY2022.
25	Blue Cord Design and Construction, LLC Top agencies VA (Department of Veterans Affairs)	$141,104	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
26	Wesco International, Inc. 6 awardees, including Anixter Inc., Wesco Distribution, Inc. and Accu-Tech Corporation Top agencies DOT (Department of Transportation) DOJ (Department of Justice) DHS (Department of Homeland Security)	$134,432	0.5%	Rank history: #13 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
27	Kitco Fiber Optics Inc Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$127,815	0.5%	Rank history: #23 in FY2021, #24 in FY2022, #99 in FY2024 and not on the FY2025 list; down 3 since FY2022.
28	Glenair, Inc. Top agencies Navy (Department of the Navy)	$122,473	0.4%	Rank history: #59 in FY2021, not on the FY2022 list, #90 in FY2024 and #81 in FY2025; returned.
29	Red Orange International L.L.C. Top agencies USAF (Department of the Air Force) DOS (Department of State)	$119,715	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Macartney Finance APS Through Macartney Inc. Top agencies Navy (Department of the Navy)	$117,631	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	Stratus Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$110,346	0.4%	Rank history: #12 in FY2021, #11 in FY2022, #67 in FY2024 and not on the FY2025 list; down 20 since FY2022.
32	Zdaas LLC Top agencies Army (Department of the Army)	$106,769	0.4%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2024 and not on the FY2025 list; new.
33	Flatwater Solutions Company Top agencies HHS (Department of Health and Human Services)	$101,379	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	General Dynamics Information Technology, Inc. Top agencies DLA (Defense Logistics Agency)	$99,565	0.4%	Rank history: #58 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
35	Schott Corporation Through Schott North America Inc. Top agencies DLA (Defense Logistics Agency)	$92,071	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
36	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$88,477	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 84 since FY2022.
37	TKS Telepost Kabel-Service Kaiserslautern GMBH Top agencies USAF (Department of the Air Force)	$83,953	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	Fujikura Ltd. Through America Fujikura Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$83,710	0.3%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
39	F-Concepts, Inc. Top agencies NARA (National Archives and Records Administration)	$80,579	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	National Capitol Contracting LLC 2 awardees, including Comcast Government Services LLC Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$77,810	0.3%	Rank history: #80 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
41	Burnham Polymeric, Inc. Top agencies Navy (Department of the Navy)	$76,600	0.3%	Rank history: #17 in FY2021, not on the FY2022 list, #20 in FY2024 and not on the FY2025 list; returned.
42	Genuine Cable Group LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$70,969	0.3%	Rank history: #56 in FY2021, #14 in FY2022, #16 in FY2024 and #26 in FY2025; down 28 since FY2022.
43	Sarcom GMBH Top agencies Army (Department of the Army)	$69,059	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Dimo Corp Top agencies Navy (Department of the Navy)	$64,828	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Thomas Heilmann GMBH Top agencies USAF (Department of the Air Force)	$60,667	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	General Dynamics Corporation 2 awardees, including General Dynamics Mission Systems, Inc. and General Dynamics Land Systems Inc. Top agencies DLA (Defense Logistics Agency)	$57,516	0.2%	Rank history: #32 in FY2021, #38 in FY2022, #29 in FY2024 and #15 in FY2025; down 8 since FY2022.
47	NSN Specialty LLC Top agencies Navy (Department of the Navy)	$56,032	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 59 since FY2022.
48	Aantilia LLC Top agencies Navy (Department of the Navy)	$55,396	0.2%	Rank history: not on the FY2021 list, #35 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
49	PC Vision Inc Top agencies Navy (Department of the Navy)	$53,351	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
50	S & K Aerospace, LLC Top agencies Navy (Department of the Navy)	$52,738	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	Carroll Woods Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$50,049	0.2%	Rank history: #81 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
52	Amphenol Corporation Through Fiber Systems International, Inc. Top agencies DLA (Defense Logistics Agency)	$48,712	0.2%	Rank history: #53 in FY2021, #95 in FY2022, #91 in FY2024 and not on the FY2025 list; up 43 since FY2022.
53	Empire Avionics Corp. Top agencies DLA (Defense Logistics Agency)	$44,605	0.2%	Rank history: not on the FY2021 list, #98 in FY2022, #63 in FY2024 and #64 in FY2025; up 45 since FY2022.
54	901 D LLC Top agencies Navy (Department of the Navy)	$44,450	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
55	TW Professional Solutions LLC Top agencies DOI (Department of the Interior)	$41,543	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and not on the FY2025 list; new.
56	Envistacom, L.l.c Through FAST Fit Technologies LLC Top agencies DOS (Department of State)	$41,177	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	U.s. Pioneer, L.L.C. Top agencies DLA (Defense Logistics Agency)	$39,714	0.1%	Rank history: not on the FY2021 list, #72 in FY2022 and not on the FY2024–FY2025 lists; up 15 since FY2022.
58	Fiber Instrument Sales, Inc. Top agencies Navy (Department of the Navy)	$38,589	0.1%	Rank history: #52 in FY2021, not on the FY2022 list, #79 in FY2024 and not on the FY2025 list; returned.
59	JBL System Solutions LLC Top agencies DLA (Defense Logistics Agency)	$37,456	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Ma Impianti S.R.L. Top agencies USAF (Department of the Air Force)	$36,800	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	Falmat Inc. Through Winchester Interconnect CM CA, Inc. Top agencies Navy (Department of the Navy)	$35,620	0.1%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
62	Seventh Genius LLC Top agencies Army (Department of the Army)	$35,586	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	K5 Defense LLC Top agencies Navy (Department of the Navy)	$34,057	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Curtis Manufacturing, Inc. Top agencies Navy (Department of the Navy)	$31,600	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	B & H International LLC Top agencies Navy (Department of the Navy)	$31,590	0.1%	Rank history: #15 in FY2021, #50 in FY2022, #47 in FY2024 and not on the FY2025 list; down 15 since FY2022.
66	A-Pak Solutions Top agencies Navy (Department of the Navy)	$30,540	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Master-Pull, LLC Top agencies USAF (Department of the Air Force)	$30,259	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
68	Pulse Communications Inc. Top agencies Commerce (Department of Commerce)	$29,963	0.1%	Rank history: #88 in FY2021, #93 in FY2022, not on the FY2024 list and #59 in FY2025; up 25 since FY2022.
69	Pamir Electronics Corp Top agencies Navy (Department of the Navy)	$29,733	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
70	L3Harris Technologies, Inc. 2 awardees, including L3Harris Maritime Power & Energy Solutions, Inc. Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency)	$27,210	0.1%	Rank history: #83 in FY2021, #82 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
71	Idea Quest Company Limited Top agencies DOS (Department of State)	$26,776	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$26,775	0.1%	Rank history: #91 in FY2021, #20 in FY2022, #77 in FY2024 and #80 in FY2025; down 52 since FY2022.
73	Atlantic Broadband Finance LLC Through Cogeco US Finance, LLC Top agencies DOJ (Department of Justice)	$25,360	0.1%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2024 and not on the FY2025 list; new.
74	Photonwares Corp Top agencies NASA (National Aeronautics and Space Administration)	$24,150	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and not on the FY2025 list; new.
75	Keres Consulting Inc. Through Nativevet Materiel, LLC Top agencies HHS (Department of Health and Human Services)	$24,006	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Standard Wire & Cable Co. Top agencies Navy (Department of the Navy)	$23,870	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	Zibiz Corporation Top agencies NASA (National Aeronautics and Space Administration)	$23,783	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Jones Utilities Construction, Inc. Top agencies DHRA (Defense Human Resources Activity)	$22,800	0.1%	Rank history: #73 in FY2021, #69 in FY2022, #81 in FY2024 and not on the FY2025 list; down 9 since FY2022.
79	Colt Technology Services Top agencies DOS (Department of State)	$21,158	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	TECH Service Solutions LLC Top agencies DOT (Department of Transportation)	$21,019	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2024 and not on the FY2025 list; new.
81	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$20,067	0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2024 and #88 in FY2025; new.
82	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$18,737	0.1%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2024 and #58 in FY2025; up 34 since FY2022.
83	HCI Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$18,720	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Prime Communications, LLC Top agencies Army (Department of the Army)	$16,367	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #76 in FY2025; new.
85	Waygate Technologies USA LP Top agencies DLA (Defense Logistics Agency)	$15,300	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Koninklijke Philips N.V. Through Philips North America LLC Top agencies VA (Department of Veterans Affairs)	$15,300	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	RF Industries Ltd. Through Cables Unlimited, Inc. Top agencies Navy (Department of the Navy)	$15,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Mccoy Global USA Inc Top agencies DOI (Department of the Interior)	$14,979	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency)	$14,711	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	OZ Optics Limited Top agencies USAF (Department of the Air Force)	$14,500	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Strictly Technology, LLC Top agencies DOS (Department of State)	$13,771	<0.1%	Rank history: not on the FY2021 list, #70 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
92	General Dynamics Satcom Technologies Inc. Through CPI Satcom & Antenna Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$13,660	<0.1%	Rank history: not on the FY2021 list, #66 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
93	Fullford Electric, Inc. Top agencies USAF (Department of the Air Force)	$13,457	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Cardinal Health, Inc. Through Cardinal Health 108, LLC Top agencies VA (Department of Veterans Affairs)	$13,420	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	March Electronics, Inc. Top agencies Navy (Department of the Navy)	$13,124	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Diltex Inc Top agencies DOS (Department of State)	$12,239	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$11,444	<0.1%	Rank history: not on the FY2021 list, #100 in FY2022, #40 in FY2024 and #38 in FY2025; up 3 since FY2022.
98	Corning Incorporated Through ACE and Company, Inc. Top agencies DLA (Defense Logistics Agency)	$11,377	<0.1%	Rank history: #21 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 79 since FY2022.
99	Ksaria Corporation Top agencies DLA (Defense Logistics Agency)	$11,152	<0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and #95 in FY2025; up 11 since FY2022.
100	Koehlke Components Inc. Top agencies DLA (Defense Logistics Agency)	$11,150	<0.1%	Rank history: not on the FY2021 list, #81 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.

Show 75 more

100 of 148 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 $27.9 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 335921 contractors in FY2023?

1. Fiber Business Solutions Group Inc. ($8.22M), 2. Teledyne Technologies Incorporated ($2.35M), 3. Emridge Technology LLC ($2.28M), 4. Norseman Inc. ($1.34M), 5. MCC Industries Inc. ($1.05M), 6. Seneca Holdings LLC ($1.03M), 7. Murray Benjamin Electric Company LLC ($964K), 8. Usmilcom, Inc. ($894K), 9. Carlo Lachmansingh Sales Inc. ($861K), 10. Rev-Cap Company, Inc. ($586K).

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