Private investment major Blackstone is to acquire a majority stake in healthcare consulting and advisory group Chartis from Audax Private Equity, with Audax set to maintain a minority equity holding in the business.

Private equity heavyweights CVC Capital Partners and KKR are reportedly showing interest in acquiring a stake in the UK arm of Grant Thornton, the sixth-largest accounting firm in Britain, according to a report by the Financial Times.

Mid-market private equity firm MidOcean Partners has acquired SI Solutions, a provider of engineering, testing, inspection, compliance and maintenance services for power and critical infrastructure end markets.

EQT Private Equity is to acquire a majority stake in AMCS, a provider of cloud-based and AI-enabled planning, performance, safety and sustainability-focused software for waste management, recycling and other resource-intensive industries.

IK Partners’ IK Small Cap II Fund has completed the sale of Carspect Group, a provider of vehicle inspection services in Sweden, Estonia and Latvia, to TÜV SÜD.

Francisco Partners, a San Francisco-based investment firm that focuses on technology and healthcare businesses, is to sell portfolio company QGenda to Hearst. Terms of the transaction have not been disclosed.

Innova Capital has acquired a majority stake in Tutore group, Poland’s largest private education platform operating under the eTutor, ProfiLingua and Tutore brands. The deal also included the acquisition of the International Language Institute and ESL Brains.