An open interoperable revolution is underway in the controls industry and one organization is taking the lead in helping companies deliver open, interoperable products: LonMark International. Supported by a who's-who of controls companies, LonMark International counts among its members not only the manufacturers fueling this revolution but also the end-users, equipment specifiers, and system integrators driving its implementation.

Since its inception in 1994 and new corporate structure in 2003, LonMark International has become a major driving force in the establishment of interoperable guidelines and is committed to educating the market on the value of open, interoperable systems by providing tools, resources, and support for its members and their markets. LonMark Affiliates span the globe with local presence in the Americas, Asia, and Europe.

LonMark International and its Affiliate Organizations have around 600 members worldwide. LonMark membership is open to any manufacturer, distributor, engineer, system integrator, or end-user interested in the development, specification, and use of open, interoperable products utilizing ANSI/CEA 709.1 and related standards.

Products that have been verified to conform to the LonMark interoperability guidelines are eligible to carry the LonMark logo.

Vision Statement

“LonMark is the recognized industry authority for certification, education, and promotion
of interoperability standards for the benefit of manufacturers, integrators, and end users.”
– LonMark International Board of Directors, 2007

LonMark International's mission is to enable the easy integration of multi-vendor systems based on LonWorks® networks. Today thousands of companies are using LonWorks control networks to provide systems and solutions for building, home, industrial, telecommunications, transportation, and other industries. There are millions of LonWorks based devices installed worldwide. LonMark provides an open forum for member companies to work together on marketing and technical programs to promote the availability of open, interoperable control devices.