Contact Us

For years, Adesso, Inc. has been serving the needs of every customer who calls or logs onto our website. Customer service is the most important aspect of our business, and we want to be there when you need us. If at any time you need advice, clarification, or any additional information about a product we sell or experience any problem whatsoever with our company, we want to hear from you. Our US office hours are from 9:00 AM to 5:00 PM PST Monday through Friday. During our normal business hours, please feel free to contact us.

US Offices


US Headquarter

20659 Valley BLVD.
Walnut, CA 91789
TEL: (909) 839-2929


TEL: (909) 839-2929
E-MAIL: [email protected]

Tech Support

TEL: (909) 839-2929
E-MAIL: [email protected]


US RMA E-Mail: [email protected]
Canada RMA
E-Mail: [email protected]

Shipping Receiving

E-MAIL: [email protected]


Oversea Offices


Adesso Technology Inc.

1735 Bayly St Unit 6
Pickering, ON L1W 3G7 Canada
TEL: +1(647) 956-5068
EMAIL: [email protected]

Adesso Technology Inc.

5E22, 5F, No. 5, Section 5,
Xinyi Road, Taipei, Taiwan
TEL: +886-2-2758-2909
EMAIL: [email protected]

Adesso Electronic Inc.

No. 5, ChengDa East St.
Xiagang Community Changan,
DongGuan, Guangdong China
TEL: +86-769-8925-3330