American Industrial Partners has agreed to acquire Presstek Inc., a Greenwich, Conn.–based provider of digital offset printing solutions to the printing and communications industries. The deal is valued at around $18.7 million, or $0.50 per share (16.3% premium to Wednesday’s closing price. www.presstek.com
The Bar Method, a San Francisco-based fitness studio operator, has raised an undisclosed amount of VC funding from Mainsail Partners. www.barmethod.com
Permira has agreed to acquire Japanese sushi restaurant chain Akindo Sushiro from Unison Capital for $1 billion. Mitsubishi UFJ Morgan Stanley managed the process, while Permira was advised by Nomura. www.permira.com
Saw Mill Capital has acquired Pine Environmental Services Inc., a Windsor, N.J.–based provider of environmental test and measurement equipment solutions, from RAF Industries Inc. No financial terms were disclosed. Harris Williams & Co. managed the process. www.pine-environmental.com
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