About Us

• Overview

• Who is LonMark?

• Backgrounder

• Board Members

• Committee Members

• What is LON?

• Why Open?

• Affiliate Organizations

• FAQs

• Contact Us

• Contact Us Form

• Email List Form

• Staff Contacts

• Employment (Jobs)

  Frequently Requested Info

Frequently Asked Questions (FAQs) - general FAQs.

Professional Certification FAQs - Professional Testing Program FAQs.

Device Certification - LonMark conformance instructions.

Design Guidelines - Technical information for developing open, interoperable LonMark products.

Technical Corner - Provides answers to commonly asked technical questions.

Contact Us

Thank you for your interest in LonMark International. Please use the links to the left or on this page below to contact us by any of the following methods:

Contact Us Form
  • General inquiries.
  • Tell us about broken links, typographical errors, pages that will not load and any other problems that you have experienced with the LonMark website.
  • Submit any comments or suggestions that will help us improve our online services.

Email List Form

  • If you would like to receive future email communication from LonMark International, including the quarterly Interoperable Newsletter, please submit your contact information using this online form.

Staff Contacts

  • Contact a specific member of the LonMark International staff.

Employment Opportunities (Jobs)








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  About Us

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  Corporate Address

LonMark International
3600 Peterson Way
Santa Clara, CA 95054 USA
Tel +1 866-566-6275
Tel +1 408-790-3247
Fax +1 408 790 3838