AEA Investors has acquired Industrial Acoustics Inc., a global provider of engineered noise control and acoustic solutions, from MML Capital Partners. No financial terms were disclosed. Harris Williams & Co. managed the process. www.industrialaccoustics.com
Francisco Partners has agreed to acquire Plex Systems, an Auburn Hills, Mich.-based provider of cloud ERP software for manufacturers, from Apax Partners. No financial terms were disclosed. www.plex.com
Digital Generation Inc. (Nasdaq: DGIT) has rejected a $550 million, or $20 per share, takeover offer fromExtreme Reach Inc., according to Reuters. Extreme Reach reportedly was being backed on its bid byProvidence Equity Partners, with TA Associates having been involved at one time. Its current backers include VC firms Greycroft Partners, Long River Ventures, River Valley Investors and Village Ventures. Other possible suitors for Digital Generation include Bain Capital, Hellman & Friedman and Thoma Bravo.www.dgit.com
The Gores Group has acquired Elo Touch Solutions, a Menlo Park, Calif.-based provider of touch screens, touch monitors and all-in-one touch computers, from TE Connectivity (NYSE: TEL). The deal was valued at $380 million. www.gores.com
The Ontario Teachers Pension Plan has agreed to acquire a 9.9% stake in South Korea-based Kyobo Life Insurance for $398 million, according to Reuters. It is unclear if the deal also includes a position in Kyobo that was being offered up by Daewoo International Corp. Other suitors had included The Carlyle Group with a UAE sovereign wealth fund and the Government of Singapore Investment Corp. (GIC) with Affinity Equity Partners. www.otpp.com
Veritas Capital has completed its $1.25 billion acquisition of the healthcare unit of Thomson Reuters(NYSE: TRI), which has been renamed Truven Health Analytics. www.thomsonreuters.com
Weld North, an investment platform sponsored by KKR and led by ex-Kaplan CEO Jonathan Grayer, has acquired “a significant minority stake” in Organic Avenue, an organic juice and raw food marketplace. No financial terms were disclosed. www.weldnorth.com