LonMark International and its Affilate Organizations have grown to over 500 members today. Membership includes consultants, end users, integrators and manufacturers including major controls companies in the building, home, industrial, transportation, telelcommunication and utilites industires worldwide.

Associate Members
Associate members represent companies and organizations that do not manufacture LonMark certified products but use, integrate, develop or distribute them. This group includes system integrators, network integrators, LonWorks Independent Developers (LIDs) and distributors. Associate members can participate in task groups but do not submit products for LonMark conformance testing.

4HomeMedia, Inc.		ABR Controls, LLC
ACS Controls Corporation		Adept Systems Inc.
Adic Co., Ltd.		Althoff Industries
APICE		ARAS Systems Inc.
ARC Informatique		ARMO-Group
Association of American Railroads		Athena Engineering, Inc.
Automation By Computers, Inc.		Avalon Engineering, LLC
BC Comfort Air Conditioning Limited		Beckett LogiSync LLC
CABA (Continental Automated Buildings Association)		Chesapeake Controls, Inc.
CHIYODA-KEISO CO., LTD.		Clasma Events Inc.
Co.M.E.T.A. S.n.c. di Enzo Anselmi & C.		Conexus, Inc.
Conseil Engineering		Control Line Electric, Inc.
Control Technologies Inc.		Controlworks
Convergint Technologies Ltd.		CORETECH Co., Ltd.
Corporate Cooling & Controls, LLC		Cyrus Technologies
Daelim Information & Service Co. Ltd.		Davis Industries, Inc.
Dynalectric Company		Economy Air Conditioning and Heating, Inc.
E-Controls		Egan Companies, Inc.
Elemco Building Controls, Inc.		EL-MA Kurtalj
ENE Systems, Inc.		Energo Network Services AB
Energy Control Inc.		Energy ETC, Inc.
Engenuity Systems, Inc.		Engineered Control Solutions
Engineered Solutions Ltd.		EnOcean Alliance Inc.
Envidatec GmbH		Environmental Systems, Inc.
F.A. Pratt, Inc.		Fatman Oy
FMC Technologies, Inc.		Fuji Electric Systems Co., Ltd.
Furukawa Electric Co., Ltd.		GAMMA JSC
Gesytec GmbH		Grand Valley Automation, Inc.
HGI mbH		Holaday-Parks, Inc.
Horizon Sheet Metal Inc.		I.E.C. Systems, Inc.
IBT Ing. Buro Bronnimann Thun		InAccess Networks S.A.
Independent Temperature Control Services, Inc.		Iniris AB
Inlon Srl		Inteldome, LLC
ISTA Group of Companies		Jack Joyner Heating and Air Conditioning Co.
Kenmark Real Estate Group, Inc.		KMC Northwest
Kone Corporation		LonUsers Finland ry
Luckinbill Inc.		Luminext as
MAC S.r.L.		Mentzel
Micro Thermo Technologies		Microsym Computers Inc.
MicroTask		Mona Building Technologies
M-SYSTEM CO., LTD.		Naronic AB
Net One Systems Co., Ltd.		New York City Transit
Newmatic Engineering, Inc.		Newron System
NJATC		Nova Facility Management Systems, Inc.
OpenTech		Optimum Management, Inc.
Osaki Computer Engineering CO., LTD.		Pacific Coast Trane
Pacific Rim Mechanical		PSB Corporation Pte. Ltd.
Quark Communications Inc.		R & R Controls, Inc.
Rockwell Automation		San Francisco Municipal Railway
Santa Clara County Electrical J.A.T.C.		Secyourit GmbH
Sepsa		Servi-Tech Controls, Inc.
Sienna Systems Corporation		Spry OSI, Inc.
Stewart Boyer Incorporated		Suliman A. Swayeh Group - SAS Group
SVEA Building Control Systems GmbH & Co.		SysMik GmbH Dresden
System Tech Services		T & P Mechanical Services Ltd.
TACanada		TDIndustries, Inc.
Technical Solutions & Services		Thomas Krutmann
Total Automation Concepts, Inc.		Tsuken Advanced Systems Corporation
TWS Electrical		U.S. Army Corps of Engineers - ERDC - CERL
ULON		Universal Integrated Technologies, Inc.
ViaBus Srl		Western Allied Corporation
who Ingenieurgesellschaft mbH		WMI Technologies, Inc.
Yokogawa Solutions Corporation		ZDANiA Sp. z o.o. (Ltd.)