Ardian-backed Trescal continues to expand its footprint in North America with the acquisition of General Calibration Inc.

Boonton, New Jersey-based General Calibration provides calibration maintenance and repair for electrical measurement equipment.

Trescal provides services to the measuring equipment market, including implementing and acquiring measurement systems, equipment pool management software, metrology and technical support and training. The group operates 72 calibration laboratories and has operations in Austria, Belguim, Czech Republic, Denmark, France, Germany, Italy, Singapore, Spain, Sweden, Switzerladn, the Netherlands, U.K., U.S., Romania and Tunisia.

Trescal has made several other acquisitions, including Master Metrology Inc. and Gerfran's Italian measurement assets, in July. 

Trescal is backed by Paris-based private equity firm Ardian, formerly known as Axa Private Equity. The firm was founded in 1996 by Dominique Senequier, who serves as vice president of the supervisory board of luxury brand Hermex International. Ardian has about $50 billion in assets under management.   The firm picked up German cosmetics company ADA Cosmetics International GmbH from the Carlyle Group (Nasdaq: CG) in July, and closed a $10 billion fund of funds in April.