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Finishing Solutions
for Critical Technologies

Trusted by

Driving Innovation for Advanced Manufacturers

Finishing is the last step for the critical parts you’ve already worked hard to create. From pre-processing activities to a comprehensive set of surface finishing solutions to select post-processing treatments, AOTCO delivers the services you need to protect your parts and ensure they will perform as expected.
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  • Electroplating
  • Anodizing
  • Passivation
  • Electroless Nickel Plating
  • Pre & Post Plating Processes
  • Dedicated Capacity


AOTCO delivers the electroplating services advanced manufacturers need to protect their parts and ensure they will perform as expected. With a comprehensive suite of plating, AOTCO is America's trusted partner for surface finishing solutions.


Industry leaders count on AOTCO to deliver exceptional anodizing services to protect your parts and ensure they will perform as expected. We offer Type I Chromic Acid Anodize, Type 2 Sulfuric Acid Anodize, Type 3 Hardcoat Anodize, Titanium Anodize, Magnesium Anodize, and more.


Manufacturers across the country rely on AOTCO to deliver exceptional passivation services to protect your parts and ensure they will perform as expected. With a comprehensive suite of surface finishing solutions, AOTCO is America's trusted partner for metal finishing.

Electroless Nickel Plating

AOTCO provides a comprehensive suite of electroless nickel solutions including: Electroless Nickel High-Phos, Mid-Phos, and Low-Phos, as well as Electroless Nickel Boron-Nitride, Electroless Nickel Boron, & Electroless Nickel Teflon PTFE. Advanced manufacturers trust AOTCO for their electroless nickel plating services.

Pre & Post Plating Processes

Trusted by America's leading advanced manufacturers, AOTCO provides extensive pre & post surface finishing processes including: laser marking and engraving, Hydrogen embrittlement stress relief, chem film, and electropolishing.

Dedicated Capacity

AOTCO's Dedicated Capacity Program provides access to dedicated equipment and production resources, guaranteed lead times, greater control over production, and priority access to expansion capacity for peak periods. With large part (hoist line) & high-volume production, you can count on AOTCO to grow your business.

Find the Right Spec.

Extensive Substrates

We know there’s far more to a perfect surface than meets the eye. AOTCO works with dozens of ferrous and non-ferrous materials and substrates, meeting exacting industrial and military specifications.
  • ALBeMet™
  • Alloy 42
  • Aluminum
  • Aluminum Silicone Carbide (ALSIC)
  • Beryllium
  • Beryllium Copper
  • Brass
  • Bronze
  • Copper
  • Copper / Moly
  • Copper / Tungsten
  • Inconel
  • Invar
  • Kovar
  • Magnesium
  • Molybdenum
  • Monel
  • Nickel
  • Niobium
  • Non Metallics
  • Phospher Bronze
  • Plastics
  • Stainless Steel
  • Steel
  • Tellurium Copper
  • Thermkon
  • Titanium
  • Black Nickel
  • Black Oxide
  • Cadmium
  • Chemical Film
  • Clean / Degrease
  • Copper
  • Electroless Nickel (Hi/Mid/Low Phos)
  • Electropolish
  • Gold
  • Laser Etch
  • Multi-Material Plating
  • Nickel Sulfamate
  • Nickel (Electrolytic)
  • Palladium
  • Passivate
  • Platinum
  • Citric Passivate
  • Rhodium
  • Silver
  • Tin
  • Tin Lead
  • Chromic Anodize (Type 1)
  • Sulfuric Anodize (Type 2)
  • Hard Anodize (Type 3)
  • Titanium Anodize

Industry News & Insights

Welcome the AOTCO blog where industry insight, and innovation intertwines with knowledge. At AOTCO, we believe in the power of information to spark inspiration and drive progress. Our blog is not just a collection of words; it's a portal into the heart of our expertise, a place where trends are dissected, ideas are explored, and solutions are woven into the fabric of tomorrow.