Conductive Ventures returned for online savings platform developer Self Financial's $50m series E round while EV producer Volta Trucks completed its $43.6m series B.

The Tencent and WarnerMedia-backed online messaging platform developer reportedly increased its valuation to $15bn in the round.

Alibaba joined new and returning investors to back the aftermarket vehicle services provider, reportedly lifting its valuation to roughly $1.5bn.

Digital mental health platform Spring Health was valued at $2bn through a series C round backed by strategic investor Guardian Life.

Mastercard, Lloyds, Nationwide Building Society and Barclays helped digital payment technology developer Form3 boost its overall funding to $220m.

CapitalG helped livestream e-commerce platform developer Whatnot secure a $1.5bn valuation in a series C round taking its total funding to $225m.

The Telstra Ventures-backed cross-border financial services provider was valued at $1bn after the latest round, which was led by D1 Capital Partners.

Telstra Ventures and BDMI helped the fundraising service increase its overall funding to over $130m in a round led by Moore Strategic Ventures.

Mastercard, PayPal and Kotak Mahindra Bank-backed payment technology provider Pine Labs has added $100m of funding to its coffers this week.

Schlumberger New Energy led a round that will help the nickel-hydrogen battery developer finance construction of a Gigafactory.