ProActivity Inc. (Newton, MA) has joined the International Society of Six Sigma Professionals as an affiliate member.

Express Manufacturing Inc. (Santa Ana, CA) has been selected by Innova Electronics Corp. (Fountain Valley, CA) to build its distributorless ignition system tester.

BSI Inc., a member of the BSI Group (Reston, VA), has received AS9100 registrar accreditation from the National Accreditation Program.

Optical Gaging Products Inc. (Rochester, NY) has relocated its Tempe, AZ, regional technical center into a larger facility and has expanded the center's services. The facility allows the company to provide product demonstrations, customer service and training simultaneously.

Air Squared Inc. (Hamilton, OH) has opened a facility in Broomfield, CO.

Mistras Holdings Group (Princeton Junction, NJ) has acquired Vibra-Metrics Inc.

Blue Mountain Quality Resources Inc. (State College, PA) is offering on-site validation service. The company will go to a facility and validate its Calibration Manager software and Calibration Manager modules.

Q-Panel Lab Products (Cleveland) has opened the doors to its new international headquarters. The facility houses administration, research and development, and manufacturing.

Qualtech Systems Inc. (Wethersfield, CT) has been named to the Deloitte & Touche and Connecticut Technology Council Fast 50 Program for Connecticut, a list of the 50 fastest growing technology companies for the state. Rankings are based on five-year percentage revenue growth (1996-2000).