Long Island Defense Contractors
Long Island holds the densest concentration of defense companies in the New York metro supply chain: these 14 firms, from Hauppauge and Bohemia to Garden City and Westbury, machine the hydraulics, fuel systems, aircraft structures, guided-munition parts, and ammunition that feed platforms like the F-35. Most defense companies on Long Island are not household names, which is exactly why we document them. Each entry links to a sourced profile; claims are attributed to published reporting and records, not asserted.
Last audited .
There are 14 Long Island defense contractors documented in Break the Chain's audited, open arms-supply database, each with a sourced profile of the published evidence.
- Arkwin Industries, Inc., Defense Contractor
- BAE Systems Information and Electronic Systems Integration Inc., Defense Contractor
- Computech International, Inc., Defense Contractor
- Davis Aircraft Products Co. Inc., Aircraft Components
- GE Aviation Systems LLC, Aircraft Components
- GSE Dynamics, Inc., Defense Contractor
- HEICO Corp., Defense Contractor
- Mil-Spec Industries, Corp., Defense Contractor
- Mod-A-Can Inc., Defense Contractor
- Ontic Engineering & Manufacturing, Inc., Defense Contractor
- Parker-Hannifin Corporation, Defense Contractor
- Pioneer Industries, Inc., Defense Contractor
- Rockwell Collins, Aircraft Components
- Ultra Electronics Holding PLC, Defense Contractor
📍 Aircraft Components
- Davis Aircraft Products Co. Inc. Manufacturer and supplier of cargo restraints with contracts for foreign military sales to Israel
- GE Aviation Systems LLC A multi-billion dollar company that provides the engines for war planes and ships that the Israel buys from US weapons manufacturers, such as L…
- Rockwell Collins Jointly owns subsidiary with Elbit Systems which manufactures Israeli military.equipment
📍 Defense Contractor
- Arkwin Industries, Inc. Manufacturers hydraulics and fuel systems components in F-35 supply chain
- BAE Systems Information and Electronic Systems Integration Inc. Operating group within of BAE Systems Inc., the US subsidiary of BAE Systems plc
- Computech International, Inc. Designs and manufactures computing solutions, noted by Who Profits Research Center for supplying the Israeli Ministry of Defense
- GSE Dynamics, Inc. Manufactures military equipment and listed as a partner for Israeli aerospace company, Turbine Support International Ltd.
- HEICO Corp. Subsidiary, Seal Dynamics manufactures parts for weapons and aircraft used by Israeli military
- Mil-Spec Industries, Corp. Manufacturer and supplier of defense, aerospace, and commercial industries excluded on two investment exclusion lists for cluster munitions and…
- Mod-A-Can Inc. Mod-A-Can makes parts for Lockheed Martin's C-130J planes, of which Israel has seven. These are transport planes which are used to transport su…
- Ontic Engineering & Manufacturing, Inc. Manufacturer of military equipment parts exported to Israel in 2023
- Parker-Hannifin Corporation Manufacturers components used in F-35 fighter jets and sole approved source for parts in FMS sales to Israel.
- Pioneer Industries, Inc. Distributes weapons and aerospace industry parts
- Ultra Electronics Holding PLC Part of supply chain for Lockheed Martin F-35s
❓ Frequently asked questions
What defense contractors are on Long Island?
Break the Chain documents 14 Long Island companies with a sourced role machining components for weapons in the supply chain, from Hauppauge and Bohemia to Garden City and Westbury. Each is listed below with a sourced profile. Documented companies include Arkwin Industries, Inc., BAE Systems Information and Electronic Systems Integration Inc. and Computech International, Inc..
Where are the defense companies on Long Island located?
Break the Chain's audited list places its 14 Long Island defense contractors across towns including Hauppauge and Bohemia in Suffolk County and Garden City and Westbury in Nassau County. Most are small and mid-size component manufacturers rather than household names, which is why the concentration goes largely unnoticed. Each company's profile includes its documented location and the published source for its role in the arms supply chain.
What do Long Island defense contractors actually make?
Components, mostly: the parts weapons platforms cannot fly without. The documented output includes hydraulics and fuel-system components in the F-35 supply chain, aircraft structures, cargo restraints built under foreign military sales contracts, and ammunition and munition-related parts. Finished components move out through JFK Airport and the New Jersey ports. Every product claim here is drawn from the sourced company profiles, which attribute each role to already-published reporting and records.
How were these companies identified?
Each entry comes from a manual audit of public records, investigative reporting, and corporate disclosures. A company appears only when an already-published source documents its role; the claim is attributed to that source, not asserted, and is not a legal conclusion about the company.
Where can I see the full data and sources?
The full dataset is published openly under CC0 at the tracker (https://wecanbreakthechain.com/tracker/), and every company has its own profile with the evidence and source links.
✊ Do something about it
These companies keep weapons moving because nothing stops them. Add your name to the people's arms embargo, or endorse the campaign as a union or organization.
🗂️ Browse other slices of the database
- Defense contractors in NYC (19 companies)
- Military logistics companies in NYC and New Jersey (9 companies)