Aerospace and Defense

Defense & Aerospace Contract Manufacturing for Opto-Mechanical & Electro-Mechanical Systems

Built by engineers who understand what failure means in the field.

Fixyte Systems is an ITAR registered defense and aerospace contract manufacturer based in Billerica, Massachusetts. We specialize in precision assembly of electro-optical and infrared systems, targeting optical sub-assemblies, opto-mechanical components, and electro-mechanical integrations for defense OEMs and tier-2/tier-3 integrators. Our defense programs run 5-200 units per year under fixed-price SOW with full MIL-SPEC documentation, component traceability, and factory acceptance testing.

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Why Defense OEMs Need a Technically Credible Contract Manufacturer

Defense programs don't tolerate ambiguity. When a targeting optical system produces a miss at range, or an EO/IR sensor fails in field conditions, the failure analysis traces back through every component and every assembly step. The CM who built the sub-assembly gets scrutinized — their documentation, their process, their build records. Most contract manufacturers treat defense work like industrial work with stricter tolerances. It isn't. Defense assembly requires engineers who understand the operational context — why an IR lens is bonded a specific way, why a mirror mount is torqued to a specific value, why alignment isn't just dimensional but functional. Fixyte was built by engineers who've assembled this class of hardware. We understand the operational context — not just the print.

Defense Contract Manufacturing Capabilities

EO/IR Systems

Electro‑optical and infrared systems for targeting, surveillance, and reconnaissance. We assemble optical trains, focal plane array integrations, and complete EO/IR sub‑systems to the alignment and environmental performance standards defense programs require — not just dimensional compliance, but functional optical performance.

Targeting & Ranging Systems

Laser range finders, beam directors, and targeting optical assemblies. Precision alignment, boresight verification, and full acceptance testing. Built to perform in the field — not merely pass bench‑level inspection.

Opto‑Mechanical Sub‑Assemblies

Mirror mounts, lens assemblies, gimbal components, and precision structural sub‑assemblies built to MIL‑SPEC dimensional requirements. Full traceability maintained from raw material through finished assembly — every component documented.

Electro‑Mechanical Integration

Complete electro‑mechanical builds for defense instrumentation — including cable harnesses, power conditioning, sensor integration, and full box builds. Designed for field serviceability and environmental compliance from day one.

From supply chain through final acceptance testing, we build mission‑critical products as if everything depends on them. Because it does.

Defense & Aerospace Assembly Applications

EO/IR Sensor Assembly for Defense Applications

Electro-optical and infrared sensor platforms are the eyes of modern defense systems. Precision assembly of the optical train, focal plane array integration, cold shield assembly, and dewar packaging determines whether the system sees what it needs to see — at range, in field conditions, across temperature extremes. We assemble EO/IR sub-systems to the alignment tolerances optical performance requires, then verify with thermal and vibration testing before delivery.

Laser Range Finder Assembly and Alignment

A laser range finder that measures incorrectly in the field isn't a precision instrument — it's a liability. Boresight alignment, transmit/receive optical assembly, and wavelength-specific component integration require domain knowledge that goes beyond dimensional measurement. We build laser range finding systems to operate across the temperature ranges and vibration environments field conditions impose — not just the lab conditions where they were designed.

Night Vision and SWIR Imaging System Assembly

Image intensifier tube integration, objective and eyepiece optical assembly, and complete NVG and SWIR imaging builds require alignment to photometric and geometric performance standards — not just dimensional tolerances. A system that passes dimensional inspection and fails photometric acceptance is still a failed build. We verify optical performance, not just dimensional compliance, on every unit..

UAV Payload Integration and Electro-Mechanical Assembly

Gimbal-mounted EO/IR payload assembly for autonomous platforms requires managing size, weight, and power constraints that ground-based systems don't face. Cable routing for vibration environments, mass property verification, and center-of-gravity compliance add requirements that most CMs haven't encountered. We've assembled hardware for platforms where every gram and every milliwatt is accounted for..

Have a defense program that needs a technically credible assembly partner?

We're domestic-only, and ready to discuss your program under NDA. First conversation is a mutual qualification — we tell you directly if we're the right fit. If we're not, we'll point you toward someone who is. .

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