Uyemura

What Uyemura does

Uyemura is a privately held specialty chemistry company that develops, tests, and manufactures advanced plating chemistries for the global electronics industry. Founded in 1848 and headquartered in Osaka, Japan under parent C. Uyemura & Co., Ltd., with North American operations run from Ontario, California (Uyemura International Corporation), the company operates five research laboratories worldwide and maintains wholly-owned subsidiaries across Japan, China, Hong Kong, Taiwan, Singapore, Malaysia, Thailand, South Korea, and Germany. Uyemura's product portfolio centers on PCB final surface finishes — including ENIG, ENEPIG, EPIG, DIG, and RAIG processes — alongside general metal finishing chemistries (electrolytic nickel, gold/silver/platinum electrolytes, sealants), supporting cleaners and etchants, insoluble anodes, and contract plating/prototype services at its Southington, Connecticut Tech Center.

The company sells quote-based directly to enterprise OEMs, PCB fabricators, semiconductor manufacturers, medical device producers, automotive electronics suppliers, and connector manufacturers through a direct field sales model backed by in-lab and in-field technical service. Uyemura's competitive positioning rests on proprietary chemistries with measurable performance differentiation (e.g., plating throwing power >80% at 12:1 aspect ratios, via fill in under 90–120 minutes, L/S capability ≤20 microns, 200% plating speed for Niphos 6500), active contribution to IPC industry standards (IPC-4552 for ENIG gold deposition; IPC-4553 for immersion silver), and strategic technology partnerships with Umicore (precious-metal electrolytes and Platinode anodes) and MEC Company (copper surface micro-roughening interface treatments). The Taiwan subsidiary is reported to hold approximately 70% of the local electroless nickel/gold plating market, and the broader group claims to have moved 80%+ of manufacturing to the United States to align with customer reshoring trends.

Uyemura's business model combines three revenue streams: (1) sale of specialty plating chemistries to PCB manufacturers, semiconductor companies, and industrial finishers; (2) expert technical services, process optimization, and prototype/contract plating at the Southington Tech Center; and (3) sale of plating equipment including insoluble MMO anodes and Platinode-branded anodes distributed from Umicore. Pricing is quote-based with no public list pricing, consistent with a B2B specialty chemicals model in which chemistries are qualified into customer processes and governed by IPC specifications, generating meaningful switching costs at the account level.

Name

Uyemura

Legal name

Uyemura International Corporation

Website

https://uyemura.com

Company type

Private

Founded year

1848

Operating status

Operating

Headcount range

101–250 employees

Short description

Uyemura is a privately held specialty chemistry company (founded 1848, Japan parent) that develops and manufactures advanced plating chemistries — including ENIG, ENEPIG, EPIG, and RAIG — for global PCB fabricators, semiconductor manufacturers, and OEMs across more than 10 countries.

Ownership category

akta.pro rank

Product category

Specialty Plating Chemicals

NAICS

Electroplating, Plating, Polishing, Anodizing, and Coloring (332813)

SIC

Miscellaneous Chemical Products (2890)

akta.pro primary industry

Electroplating & Metallization Chemicals (Cu/Ni/Au plating, additives) (IMAEAKAK)

akta.pro secondary industries

Semiconductor Process Chemicals (Wet & Dry) (IMAEAKAA), PCB & Electronics Manufacturing Chemicals (Desmear, micro-etch, plating, fluxes) (IMAEAKAL), Electroplating & Metal Finishing (Anodizing/Galvanizing/Passivation) (IMAIAKAE)

Keywords

• Plating chemistries
• PCB surface finishes
• Electroless nickel plating
• Precious metal electrolytes
• Immersion gold processes

Headquarters

HQ city

Ontario

HQ country

United States

HQ region

North America

Offices15 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Specialty Plating Chemistries: Development, testing, and manufacture of proprietary plating chemistries for final finishes and functional coatings including ENIG, ENEPIG, EPIG, immersion metals, electrolytic metals, and general metal finishing products sold directly to PCB manufacturers, semiconductor companies, and industrial finishers.
2. Technical Services and Support: Expert technical support, process optimization, and lab services for customers including process development and prototype processing.
3. Plating Equipment: Sale of plating equipment including insoluble anodes, MMO anodes, and specialized plating tools for development and production.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels10 records

Core offering

Uyemura develops, tests, and manufactures proprietary plating chemistries and processes used as final surface finishes for printed circuit boards (PCBs), semiconductors, and general metal finishing applications. The portfolio includes electroless and electrolytic chemistries for nickel, gold, palladium, silver, tin, and platinum, supplemented by cleaners, etchants, insoluble anodes, and contract prototype plating services at its Southington, CT Tech Center.

Product overview

Uyemura is a global specialty chemical company offering advanced plating chemistries for the electronics industry. The product portfolio centers on PCB surface finishes including ENIG, ENEPIG, EPIG, DIG, and RAIG processes, complemented by comprehensive supporting chemistries for cleaners, etchants, and anodes. Uyemura provides both a full line of final finishes (electroless nickel, electroless gold, palladium, immersion gold/silver/tin) and general metal finishing solutions (electrolytic nickel, black nickel, rhodium, gold, silver, platinum electrolytes, sealants, and tri-metals). Specialized offerings include Niphos 6500 for high-speed electrolytic nickel, C100 silver dispersion for wear-resistant connector applications, Topseal 693 for silver anti-tarnish protection, and Miralloy CN-Free as a cyanide-free metal replacement. The company operates regional headquarters in North America (Ontario, CA and Southington, CT), Japan/Asia (Osaka), and maintains technology alliances with Umicore (precious metal electrolytes) and MEC Company (PCB interface treatments).

Differentiator

Problem solved

Functional benefit

Brands

• Niphos: Electrolytic nickel-phosphorus plating product with up to 13% phosphorus
• C100
• PLATUNA N1
• Auruna 5750
• MOSL
• Organic Filmbond
• Topseal 693
• EVF-R
• TWX-42 RAIG (GOBRIGHT)
• TWX-40 RAIG
• Talon 3
• DIG
• Miralloy CN-Free
• FlatBOND
• MECetchBOND CZ Series
• THRU-CUP
• MEC REMOVER QT-1100
• Platinode
• MMO Anodes

Products and services

• ENIG (Electroless Nickel/Immersion Gold) Electroless nickel immersion gold final finish for PCBs providing solderability, aluminum wire bonding capability, and electrical contacting surface with excellent shelf life. Targeted at PCB fabricators serving consumer electronics, communications, and computing.
• ENEPIG (Electroless Nickel/Electroless Palladium/Immersion Gold) Universal PCB surface finish combining electroless nickel, electroless palladium, and immersion gold layers suitable for soldering, gold and aluminum wire bonding, and electrical contacting applications.
• EPIG (Electroless Palladium/Immersion Gold) Nickel-free PCB finish depositing palladium directly onto copper for high frequency applications and designs with reduced spacing; plates fine patterns with L/S of less than 20 microns.
• DIG (Direct Immersion Gold) Electroless gold plating process that deposits gold directly onto copper as a surface finish for PCBs and packages using an autocatalytic reaction rather than displacement, providing defect-free gold coverage with no copper co-deposition.
• RAIG (TWX-40 / TWX-42 GOBRIGHT Reduction-Assisted Immersion Gold) Environmentally favored next-generation immersion gold process for ENIG, ENEPIG, and EPIG that eliminates nickel corrosion through a mixed immersion/autocatalytic reaction, enabling thicker gold deposits (4-8 μin) without corrosion or porosity.
• Niphos 6500 (Electrolytic Nickel) High-speed electrolytic nickel process that plates at 200% the speed of conventional processes while maintaining the same phosphorus level in the plated layer, offering corrosion properties comparable to electroless nickel.
• C100 Silver Dispersion Silver dispersion technology designed for connector applications that extends wear cycles to 10,000+ without lubrication, providing wear-resistant and conductive plating.
• MediGold (Palladium Gold) Palladium gold finish designed for medical device and high purity surface applications requiring ultra-high purity surfaces, including life-sustaining medical equipment and surgical instruments.
• Talon (Electroless/Alloyed Palladium) Cost-effective palladium process for ENEPIG that deposits directly onto copper, aluminum, or electroless nickel substrates.
• Topseal 693 Silver anti-tarnish sealant that withstands high heat and voltages without compromising contact resistance or resistivity, designed for silver components.
• Auruna 5750 50/50 gold/silver electrolyte providing exceptional color and cost savings as an alternative to high-cost pure gold processes for decorative and functional applications.
• PLATUNA N1 Electrolytic platinum process that deposits directly on titanium; crack-free coatings up to 1 micrometer used on electrodes, catalysts, receptors, and connectors.
• Miralloy CN-Free Cyanide-free replacement for silver, palladium, and nickel deposits up to 8 micrometers thickness for decorative and connector applications.
• EVF-R (Via Filling Chemistry) Blind via filling chemistry that fills 30-145 micrometer vias often in under 90 minutes for HDI PCB manufacturing applications.
• FlatBOND / Organic Filmbond Non-etching adhesion promoter for high-frequency PCBs designed to optimize copper surface topography for HF PCB applications.
• MMO Anodes and Platinode Anodes Mixed metal oxide anodes (MMO) and platinized titanium anodes (Platinode, distributed from Umicore) for acid copper plating and precious metal plating applications.
• MOSL (Metal Oxide Seed Layer Technology) Metal oxide seed layer technology for advanced PCB circuit applications.
• Prototype and Process Innovation Line Contract plating line at the Southington, CT Tech Center providing under-bump metallization (UBM), process development, and prototype processing for wafers up to 12 inches (300mm); serves semiconductor companies, universities, government researchers, and start-ups.
• Technical Service and Support Expert technical support for PCB, semiconductor, and surface finishing customers including in-lab and in-field process optimization, troubleshooting, and training.
• MEC Surface Treatments (MECetchBOND CZ Series, SILKYSURF AP, STZ-3100) Copper micro-roughening and surface treatment products distributed under the 'MEC from Uyemura' brand; optimize copper surface topography and promote adhesion of dry film, soldermask, and laminate.

Quantifiable outcome

• Plating throwing power >80% for 12:1 aspect ratio holes
• +5 more outcomes

Named customers4 records

Segments7 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Umicore GmbHcoreTechnology or IntegrationSchwbisch Gmund, Germany-based company is a leading global provider of precious metal electrolytes and compounds for electroplating gold, silver, rhodium and ruthenium. Umicore also produces precious metal-coated, dimensionally stable anodes for electroplating, as well as water treatment. Uyemura distributes Platinode branded anodes from Umicore.
• MEC Company LTDcoreTechnology or IntegrationOsaka-based company is the global leader in interface treatment of electronics components. Primary focus is products that use micro-roughening technology to optimize copper surface topography, and promote adhesion of organic-based material such as dry film, soldermask or laminate to those surfaces. MEC products are distributed under 'MEC from Uyemura' brand.
• IPC - Association Connecting Electronics IndustriescoreOthersIndustry standards organization for electronics manufacturing. Uyemura participates in development of IPC standards including IPC-4552 for ENIG gold deposition, contributing to industry specifications.
• NASF - National Association for Surface FinishingminorOthersTrade association for surface finishing industry. Uyemura maintains membership and participates in industry events.
• NAMF - National Association of Metal FinishersminorOthersTrade association for metal finishing industry.
• I-Connect007minorGTM or Marketing PartnerIndustry media platform conducting interviews with Uyemura executives and publishing technical content about company products and innovations.
• SMTA - Surface Mount Technology AssociationminorGTM or Marketing PartnerInternational organization for electronics assembly. Uyemura presents technical papers at SMTA conferences.
• HDPug ConsortiumminorStrategic or Co-development PartnerIndustry consortium addressing demands on final finishes posed by solderless connections. Uyemura's Rich DePoto leads consortium addressing nickel-free products value.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Daiwa Fine Chemicals: Japanese supplier of specialty plating chemistries for PCBs and electronics, competing with Uyemura in ENIG/ENEPIG, electroless nickel, and copper plating solutions primarily in the Japanese and Asian PCB markets.
• JCU Corporation: JCU is a Japanese-headquartered specialty chemicals company focused on surface treatment chemistries for electronics and automotive applications — a direct competitor to Uyemura in the Japanese and broader Asian PCB plating chemistry market.

Broad incumbents

• Atotech (MKS Instruments): Atotech, now part of MKS Instruments, is one of the largest global suppliers of specialty plating chemistries for PCB, semiconductor, and decorative finishing — directly overlapping Uyemura's ENIG/ENEPIG and acid copper portfolios across the same OEM customer base.
• MacDermid Enthone Electronics Solutions: MacDermid Enthone (Element Solutions) supplies metallization chemistries and surface finishes for PCBs, IC substrates, and semiconductor packaging — competing head-to-head with Uyemura in ENIG, ENEPIG, electroless nickel, and via fill chemistries globally.
• Rohm and Haas Electronic Materials (now DuPont): Originally part of Rohm and Haas and now within DuPont, this business supplied PCB plating chemistries including electroless copper and surface finishes — directly comparable to Uyemura's plating chemistry portfolio.
• DuPont Electronics & Industrial: DuPont offers a broad electronics chemicals portfolio including PCB metallization chemistries and advanced packaging materials, overlapping with Uyemura in plating chemistries for IC substrates and high-end PCB finishes.

Others

• MEC Company: MEC is Uyemura's strategic partner for copper micro-roughening and adhesion promoter chemistries distributed under the 'MEC from Uyemura' brand; comparable as a chemistry supplier serving PCB interface treatment, though it operates in an adjacent rather than directly competitive slot.
• Umicore Electroplating: Umicore supplies precious metal electrolytes (gold, silver, rhodium, ruthenium) and Platinode anodes which Uyemura distributes in North America; comparable as a plating chemistry and anode supplier but operating as a partner rather than direct competitor in Uyemura's geography.

Regional players

• Yamato Denki Co., Ltd. Japanese regional supplier of plating chemistries and equipment primarily serving the domestic Japanese PCB and electronics market — comparable to Uyemura's Japanese operations in surface treatment chemistry distribution.

Emerging players

• Cooperative Plating Technology: Specialty plating chemistry supplier focused on PCB and IC substrate finishes; competes with Uyemura in electroless nickel, immersion gold, and palladium chemistries for advanced packaging applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/UyemuraInternational
• LinkedInlinkedin.com/company/uyemura-usa

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries12 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Uyemura