We know what counts and our history backs it up.
Over 100 Years Strong
We certainly have staying power — more than 100 years of it, if you’re counting. We are.
In fact, that’s one of the reasons we’ve grown from Walker Jamar Sr.’s initial $500 investment to a multimillion-dollar company with a rich history.
The Jamar Company was founded in 1913 by Walker Jamar Sr. Since then, we have undergone many changes.
In 1985, APi Group brought us into their fold. Acquisitions since, such as Arrowhead Refrigeration, Bartingale Mechanical, and CMS further enhance our capabilities, expand our reach, and enrich our history of success.
Through it all, we have stayed true to our founder and our history - making every hire, every estimate and every project count.
AH Krieger Company was purchased
Walker Jamar Company was established
Additional operations under the Jamar Olmen name
Opened branch offices in Chicago, Kansas City & Houston
Renamed The Jamar Company
Acquired by APi
Acquired Asdco Distribution
Acquired Arrowhead Refrigeration Arrowhead Mechanical & Sonneman Constructor
Opened the Michigan operations of Jamar with acquisition of Pentecost Construction
Opened the Idaho operations of Jamar
Opened the Wisconsin operations of Jamar
Acquired Stout Mechanical
Asdco Arden Hills , MN, operations open
Asdco Watford City, ND, operations open
Asdco Spooner, WI, operations open
Asdco Shakopee, MN, operations open
Integrated Industrial Contractors, Inc., an APi Group sister-company from Bismarck, ND, into our operations. Acquired CMS Mechanical Service in Windsor, CO.
Acquired Bartingale Mechanical Contractors in Eau Claire, WI.
2022 ASDCO Distribution (formerly part of The Jamar Company) and APi Distribution merge and rebrand as Tenet.
2023 Arrowhead Refrigeration and CMS are rebranded with the Jamar name.