Insights

Established Market Presence Cosel USA has a strong reputation for manufacturing high-reliability power supplies and EMI filters with over 40 years of industry experience, serving diverse sectors that require dependable electrical components, making it an attractive partner for clients seeking proven quality and long-term reliability.

Product Diversity With a vast catalog exceeding 10,000 standard models ranging from 3 to 10,000 watts for AC/DC and up to 700W for DC/DC solutions, Cosel offers extensive options to meet varied customer specifications across multiple industries including appliances, automation, and industrial equipment.

Global Manufacturing Capabilities Cosel's advanced manufacturing facilities in Japan and China enable flexible production and rapid lead times of 4-6 weeks, facilitating quick delivery and supporting scaling opportunities for customers with urgent or large-volume demands.

Focus on Quality and Safety The company's commitment to quality, evidenced by ISO certifications and a low field failure rate below 40ppm, combined with compliance to international safety standards and RoHS, underscores its suitability for clients in sectors with strict safety and environmental compliance requirements.

Market Growth Potential Cosel's revenue range of 25 to 50 million dollars positions it as an emerging player with significant growth opportunities, especially when considering its technical capabilities, extensive product range, and focus on service excellence—ideal for expanding into new markets and customer segments.

Cosel USA Tech Stack

Cosel USA uses 8 technology products and services including Site Kit, RSS, JSON-LD, and more. Explore Cosel USA's tech stack below.

  • Site Kit
    Analytics
  • RSS
    Content Management System
  • JSON-LD
    Javascript Frameworks
  • jQuery Migrate
    Javascript Libraries
  • Slick
    Javascript Libraries
  • PHP
    Programming Languages
  • X-XSS-Protection
    Security
  • Apache
    Web Servers

Media & News

Cosel USA's Email Address Formats

Cosel USA uses at least 1 format(s):
Cosel USA Email FormatsExamplePercentage
First@coselusa.comJohn@coselusa.com
67%
FLast@coselusa.comJDoe@coselusa.com
23%
First.Last@coselusa.comJohn.Doe@coselusa.com
5%
FirLast@coselusa.comJohDoe@coselusa.com
5%

Frequently Asked Questions

What is Cosel USA's phone number?

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You can contact Cosel USA's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Cosel USA's official website and social media links?

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Cosel USA's official website is coselusa.com and has social profiles on LinkedIn.

How much revenue does Cosel USA generate?

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As of December 2025, Cosel USA's annual revenue is estimated to be $6.2M.

What is Cosel USA's SIC code NAICS code?

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Cosel USA's SIC code is 5063 - Electrical Apparatus and Equipment Wiring Supplies, and Construction Materials NAICS code is 335 - Electrical Equipment, Appliance, and Component Manufacturing.

How many employees does Cosel USA have currently?

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As of December 2025, Cosel USA has approximately 501 employees across 2 continents, including North AmericaAsia. Key team members include Regional Sales Manager: M. B.Engineering Manager: T. Y.Office Administrator And Shipping Manager: A. C.. Explore Cosel USA's employee directory with LeadIQ.

What industry does Cosel USA belong to?

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Cosel USA operates in the Appliances, Electrical, and Electronics Manufacturing industry.

What technology does Cosel USA use?

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Cosel USA's tech stack includes Site KitRSSJSON-LDjQuery MigrateSlickPHPX-XSS-ProtectionApache.

What is Cosel USA's email format?

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Cosel USA's email format typically follows the pattern of First@coselusa.com. Find more Cosel USA email formats with LeadIQ.

When was Cosel USA founded?

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Cosel USA was founded in 1969.

Cosel USA

Appliances, Electrical, and Electronics ManufacturingCalifornia, United States501-1000 Employees

Cosel is one of world's leading manufacturers of switch mode AC-DC power supplies, DC-DC converters and EMI filters. Cosel has been manufacturing highly reliable products since 1969. With Cosel’s commitment to quality, reliability, and customer service, and a very low field failure rate, Cosel has been the dependable choice for over 40 years. When quality is a must, reliability is critical, and technical service is crucial, Cosel stands alone.

Our state-of-the-art manufacturing facilities in Japan are ISO9001 and ISO14001 qualified utilizing TQM (Total Quality Management) systems.  Cosel recently opened a new facility in Wuxi in China in 2010 to expand production capability. Our continued focus on quality has helped Cosel to achieve a field failure rate less than 40ppm, which is much lower than industry average. All Cosel Products are safety qualified to meet international safety standards and compliance with the RoHS Directive.

We strive to provide the highest level of service through our regional sales office, staffed with application engineers and power supply professionals, supported by our franchised distributors and manufacture sales reps.  Cosel offers industry-leading service, and by utilizing cellular manufacturing, our standard lead times of 4-6 weeks are the shortest in the industry.

Cosel manufactures over 10,000 standards models of power products and EMI filters.  With AC/DC product ranging from 3-10,000 watts, and DC/DC parts from 1.5 to 700W,  Cosel will have a solution for your needs. We offer a wide range of options and accessories for our products including conformal coating, low leakage current, low speed fans and much more.

Section iconCompany Overview

Phone number
SIC Code
5063 - Electrical Apparatus and Equipment Wiring Supplies, and Construction Materials
NAICS Code
335 - Electrical Equipment, Appliance, and Component Manufacturing
Founded
1969
Employees
501-1000

Section iconMedia & News

Section iconFunding & Financials

  • $25M$50M

    Cosel USA's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Cosel USA's revenue is estimated to be in the range of $25M$50M

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