Warburg Pincus has agreed to acquire a majority stake in London-based asset manager Source.
Seed Capital, Vækstfonden and business angels have invested €1.5m in Deskwolf, a start-up that helps SMEs use Facebook as a marketing tool.
Metric Capital Partners has taken a minority stake in Leobersdorfer Maschinenfabrik (LMF), an Austrian industrial company.
Acton Capital Partners has held a first close for its Heureka Growth Fund II on $110m.
Segulah portfolio company European Travel Interactive (ETI) has acquired price comparison website Flygresor.se.
DFJ Esprit and its Menlo Park-based parent DFJ have led a $25m series-C round for consumer review site Trustpilot.
An investment consortium led by Pembroke Venture Capital Trust has acquired publishing and events group Boat International Media from August Equity.
Herkules has agreed to acquire a majority stake in Didriksons, a Swedish functional clothing retailer.
Credo Partners has sold Lönne Holding to Brammer, while simultaneously acquiring the group's subsidiary Lönne Service.
Nordic Capital's eighth fund has held a final close on its hardcap of €3.5bn ($4.8bn).
Ardian and Resource Partners have bought out a minority shareholder in SIA Baltcom TV (Baltcom), a Latvian cable television operator, to increase their joint stake in the business.
Industrifonden has invested SEK 10m in Garantibil, a Swedish e-commerce site focusing on used cars.
Online payment provider Klarna, backed by DST and General Atlantic among other VCs, has acquired Sofort for $150m.
FSN Capital has divested Norman Shark, the malware analysis solutions division of its portfolio company Norman, to Blue Coat Systems.
Industrifonden has partially exited its holding in listed 3D printing company Arcam via the sale of a 4.4% stake worth SEK 174m.
The Riverside Company has agreed to invest in Danish microphone manufacturer DPA Microphones (DPA).
Finnish Industry Investment has invested €4m in Visedo, a Finnish developer of electrical drive components, alongside previous backers.
Via Venture Partners has sold mobile software developer ePocket Solutions to Norway-based Guard Systems.
CapMan has sold its holding in pig farm operator Russian Baltic Pork Invest (RBPI) to Thailand-based Charoen Pokphand Foods.
Danish GP Axcel has agreed to acquire IT company Silkeborg Data, which specialises in IT-based payroll and HR systems, from Jyske Bank.
HitecVision and Converto Capital have agreed to sell Stream, a Norwegian oil & gas services company, to MRC Global.
Business Growth Fund (BGF) has invested £5.6m in Scottish optical chain Duncan & Todd.
Investment AB Kinnevik has sold its stake in renewable packaging material company BillerudKorsnäs to a number of Swedish institutions for SEK 3.7bn.
Cinven portfolio company Amdipharm Mercury (Amco) has acquired Abcur, a Swedish pharmaceutical business.