- 3280 E. Hemisphere Loop Suite 140, Tucson, AZ 85706
Mastek-InnerStep to deliver the agility of a regional EMS provider with the technical strength and global reach of a large-scale manufacturer. From startups to Fortune 100s, we help OEMs launch, scale, and optimize their product manufacturing. We provide U.S.-based prototyping, manufacturing, and procurement services to our customers across multiple industries including aerospace and defense, bio-medical, optical, mining, solar, industrial, automotive, and semiconductor industries.
Complete manufacturing services for OEMs, combining flexibility with global capabilities.
Certified processes and skilled staff ensure reliable builds for low to mid volume projects.
Supporting startups to Fortune 100s with scalable and efficient manufacturing.
Mastek-InnerStep is a full-service contract manufacturing company offering turnkey and production services to OEM customers across the U.S. By integrating independently operated companies, we deliver the agility of a regional EMS with the strength and technical expertise of a global provider. With over 30 years of experience, certified processes, and a skilled workforce, we help clients—from startups to Fortune 100 firms—focus on innovation while we handle manufacturing and assembly.
With a 9,600+ sq. ft. ESD-controlled facility and certified experts, Mastek-InnerStep delivers precision manufacturing and testing solutions trusted by top U.S. industries.
Mastek-InnerStep delivers full-spectrum manufacturing solutions to fulfillment — backed by decades of experience, certified quality, and responsive customer service across diverse industries.
We manage the full product lifecycle from support to final delivery — all under one roof.
Fast, accurate prototyping with in-house testing ensures your product performs flawlessly from the start.
Advanced manufacturing space with RoHS capability and automated SMT assembly lines.
ISO 9001:2008, AS9100, TUV, UL, IPC, and Mil-spec compliance with on-site certified instructors.
Dedicated to timely project completion through tight schedule management and responsive support.
Serving sectors like Aerospace, Medical Devices, Solar, Semiconductor, and more.
From inventory control to warranty and logistics — we support your product after it ships.
Leverage our procurement and production systems for competitive pricing without compromising quality.
Your success is our priority — we’re committed to adding measurable value to your operations.
At Mastek-InnerStep, we believe that our growth depends on our customers’ success. That’s why we focus on delivering high-quality manufacturing, on-time delivery, and responsive support — all tailored to meet the unique demands of every client.
We provide turnkey contract manufacturing solutions and assembly to testing and fulfillment. With decades of experience, Mastek-InnerStep ensures high-quality electronic and mechanical builds tailored for both low and mid-volume production.
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With over 30 years of experience, Mastek-InnerStep delivers full-service contract manufacturing tailored to your needs—so you can focus on innovation while we handle the rest.
Mastek-InnerStep offers full-service inventory programs optimize your supply chain, reduce costs, and increase operational efficiency—so you can focus on what matters most.
Reduce overhead by letting Mastek manage procurement, storage, and inventory. Enjoy lower part costs and streamlined operations without the hassle.
Lower your material uplift by prepaying component costs. This model saves money and enhances supplier leverage through cost-sharing efficiency.
Prefer to provide your own materials? Mastek handles consigned inventory on-site with detailed tracking, reporting, and optional value-added services.
