SIC 3669 · Manufacturing

Communications Equipment, NEC

OpenFilings tracks 3 companies that the SEC classifies under Standard Industrial Classification code 3669; the most recent filing among them is dated Oct 22, 2026. 3 of them report standardized annual figures in XBRL, shown in the revenue column.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. Not investment advice.

Companies in this industry

Communications Equipment, NEC companies (SIC 3669)
#CompanyStateLatest filingRevenue (latest FY)
252LITE Lumentum Holdings Inc.CAOct 6, 2026$3.0BFY2026
1197ESE ESCO TECHNOLOGIES INCMOOct 22, 2026$1.1BFY2025
2235NSSC NAPCO SECURITY TECHNOLOGIES, INCNYOct 13, 2026$202.3MFY2026

Ranked by position in the SEC company ticker list (roughly by market value) among all companies we track. Revenue is the latest full fiscal year; amounts in a foreign currency are shown with its code.

Latest reports from these companies

Annual, quarterly and current reports and proxy statements filed by the companies above, newest first.

Recent filings, SIC 3669
FiledCompanyFormWhat it isOriginal
Oct 6, 2026LITE Lumentum Holdings Inc.DEF 14ADEFINITIVE PROXY STATEMENT· period Nov 18, 2026Document · Index
Oct 2, 2026ESE ESCO TECHNOLOGIES INC8-KMaterial agreement; Agreement terminated; Acquisition or disposition completed; New financial obligation; Director or officer change· period Oct 1, 2026Document · Index
Aug 24, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC10-KAnnual report· period Jun 30, 2026Document · Index
Aug 24, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC8-KResults of operations; Regulation FD disclosure· period Aug 20, 2026Document · Index
Aug 17, 2026LITE Lumentum Holdings Inc.10-KAnnual report· period Jun 27, 2026Document · Index
Aug 11, 2026LITE Lumentum Holdings Inc.8-KResults of operations· period Aug 11, 2026Document · Index
Aug 10, 2026ESE ESCO TECHNOLOGIES INC10-QQuarterly report· period Jun 30, 2026Document · Index
Aug 6, 2026ESE ESCO TECHNOLOGIES INC8-KResults of operations; Regulation FD disclosure· period Aug 6, 2026Document · Index
Jul 8, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC8-KDirector or officer change· period Jul 8, 2026Document · Index
Jun 3, 2026ESE ESCO TECHNOLOGIES INC8-KMaterial agreement; Agreement terminated; New financial obligation· period May 29, 2026Document · Index
May 11, 2026ESE ESCO TECHNOLOGIES INC10-QQuarterly report· period Mar 31, 2026Document · Index
May 7, 2026ESE ESCO TECHNOLOGIES INC8-KResults of operations; Regulation FD disclosure· period May 7, 2026Document · Index
May 6, 2026LITE Lumentum Holdings Inc.10-QQuarterly report· period Mar 28, 2026Document · Index
May 5, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC10-QQuarterly report· period Mar 31, 2026Document · Index
May 4, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC8-KResults of operations; Regulation FD disclosure· period Apr 30, 2026Document · Index
Apr 16, 2026ESE ESCO TECHNOLOGIES INC8-KMaterial agreement; Unregistered equity sale· period Apr 15, 2026Document · Index
Apr 15, 2026ESE ESCO TECHNOLOGIES INC8-KResults of operations; Regulation FD disclosure· period Apr 15, 2026Document · Index
Feb 2, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC10-QQuarterly report· period Dec 31, 2025Document · Index
Feb 2, 2026NSSC NAPCO SECURITY TECHNOLOGIES, INC8-KResults of operations; Director or officer change; Regulation FD disclosure· period Jan 29, 2026Document · Index
Dec 10, 2025ESE ESCO TECHNOLOGIES INCDEF 14ADefinitive proxy statement· period Jan 30, 2026Document · Index
Dec 8, 2025NSSC NAPCO SECURITY TECHNOLOGIES, INC8-KShareholder vote results· period Dec 8, 2025Document · Index
Dec 1, 2025ESE ESCO TECHNOLOGIES INC10-KAnnual report· period Sep 30, 2025Document · Index
Nov 3, 2025NSSC NAPCO SECURITY TECHNOLOGIES, INC10-QQuarterly report· period Sep 30, 2025Document · Index
Nov 3, 2025NSSC NAPCO SECURITY TECHNOLOGIES, INC8-KResults of operations; Regulation FD disclosure· period Oct 30, 2025Document · Index
Oct 24, 2025NSSC NAPCO SECURITY TECHNOLOGIES, INCDEF 14ADefinitive proxy statement· period Dec 8, 2025Document · Index

Related industries in Manufacturing

All industries · All companies

Source

  • U.S. Securities and Exchange Commission, EDGAR company submissions (SIC code and description) and XBRL company facts. The SEC does not endorse OpenFilings.