The two dogsitting services providers have joined forces in a bid to accelerate international expansion efforts.

Audi, an existing investor in Silvercar, is set to fully acquire the airport car rental app developer.

Chemical producer Nippon Shokubai will acquire monomer and derivative developer Sirrus, which had raised $35m in equity funding from investors including Mitsui and General Motors.

Novartis is set to exit heart valve replacement maker Symetis after Boston Scientific agreed a cash purchase less than two weeks after the company filed to go public.

Johnson & Johnson, Kaiser Permanente and Mayo Clinic all exited the medical device producer in an acquisition of undisclosed size by Johnson & Johnson subsidiary Ethicon.

Naspers and Jabbar Internet have exited Middle Eastern e-commerce company Souq, which raised money at a $1bn valuation just over a year ago.

Alibaba, which already owned 32% of the online ticketing platform, has bought the remainder, giving an exit to Legend Capital in the process.

Amazon Web Services has paid an undisclosed amount to buy meeting tool developer Do, giving an exit to Salesforce.

Dell Boomi has paid an undisclosed amount to buy application development platform ManyWho, giving an exit to Salesforce Ventures.