Overview

Winchester Interconnect makes high-precision connectors, cable assemblies, and hermetic microwave packaging, with manufacturing sites across North America. The company is headquartered in Milford, Connecticut, and was founded in 1941. It employs roughly 1,000 to 5,000 people and has estimated annual revenue of $250 to $500 million; it is privately held. It serves automotive, electric-vehicle, electronics, medical, military-defense, and industrial-equipment markets. In June 2026 it launched a VITA 67.2 RF connector product line for high-density aerospace and defense systems.

At a glance

What Winchester Interconnect makes

The company holds AS9100, ISO 9001, and ISO 13485 certifications and offers products including fiber optic connectors, RF and microwave components, custom medical cable assemblies, and overmolded assemblies.

Products and capabilities described on the company's own site include Assembly, Tooling, Mold (source: winconn.com).

Certifications

Winchester Interconnect is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• AS9100 — aptiv.com

• ISO 13485 — aptiv.com

• ISO 9001 — aptiv.com

Trade and customs footprint

The company launched its VITA 67.2 RF connector product line for high-density aerospace and defense systems, as reported by parent Aptiv, in June 2026. US customs bill-of-lading records list 157 inbound shipments across 24 foreign suppliers, with top origins including Germany · Taiwan · China · United Kingdom.

Latest developments

• 2026-06-04 — Aptiv’s Winchester Interconnect Launches VITA 67.2 RF Connector Product Line for High-Density Aerospace and Defense Systems (aptiv.com)

• 2026-06-04 — Aptiv PLC - Aptiv’s Winchester Interconnect Launches VITA 67.2 RF Connector Product Line for High-Density Aerospace and Defense Systems (aptiv.com)

• 2026-04-23 — At our Winchester Interconnect Nogales facility, our Cutting Center is the critical "first mile" of our production line. For the mission-critical robotics, semiconductor, and medical applications we serve, even a millimeter of … | Winchester Interconnect (linkedin.com)

• 2026-03-23 — Aptiv’s Winchester Interconnect Launches Modulus™ Connector Platform for LEO and Drone Programs (aptiv.com)

• 2026-03-05 — Big news from our Houston facility! We’ve expanded our capabilities with new equipment, and that means we’re hiring a molding engineer to support this exciting growth. If you’re looking to be part … | Winchester Interconnect (linkedin.com)

• 2025-12-03 — Winchester Interconnect Launches LiteSPEed™ Cable: Faster, Lighter, Simpler Connectivity for Mission-Critical Systems (businesswire.com)

Facilities

Winchester Interconnect is headquartered in Milford, Connecticut. Public sources also reference these locations:

• Dayville, CT — winconn.com

Company details

The company is privately held and operates within the Aptiv group, with an estimated revenue band of $250 to $500 million. Winchester Interconnect was founded in 1941, has an estimated 1,000-5,000 employees, and is headquartered in Milford, Connecticut. On the LightSource stability read it is rated "Established & active": 85 years in operation (founded 1941). Holds AS9100, ISO 13485, ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Winchester Interconnect make?

Winchester Interconnect makes high-precision connectors, cable assemblies, and hermetic microwave packaging, with manufacturing sites across North America. The company is headquartered in Milford, Connecticut, and was founded in 1941. It employs roughly 1,000 to 5,000 people and has estimated annual revenue of $250 to $500 million; it is privately held. It serves automotive, electric-vehicle, electronics, medical, military-defense, and industrial-equipment markets. In June 2026 it launched a VITA 67.2 RF connector product line for high-density aerospace and defense systems.

Where is Winchester Interconnect headquartered?

Winchester Interconnect is headquartered in Milford, Connecticut (185 Plains Road, Milford, Connecticut, 06461).

When was Winchester Interconnect founded?

Winchester Interconnect was founded in 1941.

How big is Winchester Interconnect?

Winchester Interconnect has an estimated 1,000-5,000 employees, with revenue in the $250-500M range (estimated).

What certifications does Winchester Interconnect hold?

Winchester Interconnect lists AS9100 · ISO 13485 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

Does Winchester Interconnect import from overseas suppliers?

US customs bill-of-lading records show 157 inbound shipments for Winchester Interconnect, with top origins including Germany · Taiwan · China · United Kingdom.

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Last verified Nov 2026. Is this your company? Request a correction.