The endpoint security software producer, which counts Citi, Capital One, Dell and TenEleven as investors, has now raised almost $300m in total.

CapitalG returned for a round that boosted the endpoint protection platform's overall funding to more than $480m, valuing it at more than $3bn.

The radiation therapy system provider has now raised more than $500m altogether, having received funding from backers including Henan Maisheng.

Best Buy-backed biometric sensor developer Valencell has secured a series E round led by Sonion, while existing shareholders such as Gii returned.

The Walt Disney and JF Shea-backed toy robot maker has raised an initial $12m for a funding round it expects to close at $20m.

Access Industries, Lennar and General Atlantic have co-led a series E round for Opendoor, after Lennar supplied $100m in debt funding earlier this year.

SoftBank is considering injecting several billion dollars into the co-working space provider, which would double its valuation to between $35bn and $40bn.