UnitedMasters has emerged from stealth, revealing $70m in funding from investors including Alphabet and 20th Century Fox.

The debt collection platform has completed a series B round featuring insurer Assurant that will fund product development and client acquisition.

The cloud video hosting platform has raised $31.4m, six years after closing a Steamboat Ventures-led series B round.

Sedgwick Claims Management Services-backed LeanTaas has secured $26m to continue development of its healthcare management platform.

The wireless pacemaker developer secured $50m in an Ascension Ventures-backed round that took its total funding past the $150m mark.

Medidata, Amgen, Merck & Co, Roche, Ascension, Intermountain and General Electric all took part in a round that boosted Syapse's total funding to almost $70m.

Touchstone Innovations has co-led a $6.75m series A round for edtech developer Sam Labs after it pumped $2.9m into the business in May 2016.

NTT Docomo and Cisco took part in the cybersecurity software developer's series C round, with the proceeds to go to product development.

Bill Gates has invested $50m in the corporate-backed fund, which is financing treatments and technologies to fight dementia.