Medical device company Mainstay Medical has completed an oversubscribed series B financing round for USD20m (EUR15.3m) led by Fountain Healthcare Partners. Other new investors in the series B round include Medtronic, Capricorn Venture Partners and Seventure Partners. Existing series A investors Sofinnova Partners and Twin City Angels also participated. This

RAMP has completed a series C financing led by New York-based StarVest Partners. As part of the transaction, Deborah Farrington (pictured), co-founder and general partner at StarVest, will be joining RAMP’s board of directors. StarVest is also joined by Hearst Interactive Media and EDBI as new investors in RAMP, along

Mimecast has secured USD62.15m in series C funding led by private equity firm Insight Venture Partners, with existing investors Dawn Capital also participating. Mimecast plans to use the funding to accelerate the development and deployment of new technology, and to support plans for rapid expansion in the US market.   

Business Growth Fund (BGF) is investing GBP5.4m of growth capital in Swanbridge Hire and Sales (SHS), a provider of high specification industrial scaffolding services based in Barry, South Wales. This is the fourth investment to be led by BGF’s regional team for the South West of England and South Wales;

Onex is to acquire KraussMaffei, a manufacturer of plastic and rubber processing equipment, for EUR568m. The transaction is anticipated to close by 31 March, 2013 subject to customary conditions and regulatory approvals.   Based in Munich, Germany, KraussMaffei designs and manufactures machinery and systems for the processing of plastics and

Arma Partners acted as the exclusive financial adviser to Butterfly Software, a privately held data analysis and migration software company headquartered in Maidenhead, UK, on its sale to International Business Machines. Financial terms of the transaction were not disclosed. Butterfly will become part of IBM’s software group.   Butterfly offers