Airpax Corporation, LLC

L SquaredAirpax Corporation, LLC

Airpax Corporation, LLC

Airpax is a leading worldwide manufacturer of customized hydraulic magnetic circuit breakers and certain thermostats and temperature sensors. These products provide protection for equipment, machinery and instruments against hazards caused by fluctuation in electrical current and temperature. Airpax has secured its leadership position by offering best-in-class product quality, lead times, customer service and engineering support. Airpax serves OEM’s of telecom, wireless, power, information processing military and HVAC equipment.


Cambridge, MA

Investment Date:

May 2004


William Blair Capital Partners VII ***Note: This investment was led and/or managed by one or more senior members of the L Squared Capital Partners team while providing investment advisory services at the fund referenced on this page. This investment represents substantially similar investment characteristics as L Squared’s investments.