Barefoot Networks has received $23m from investors including Alibaba and Tencent to take its Google-backed series C round to $80m and its total funding to $130m.

The US-based wireless infrastructure technology developer and University of Texas spinout has also named board member Cole Brodman as its new chief executive.

Existing backers Novartis and LabCorp came back for blood collection system developer Seventh Sense Biosystems' series C round having previously invested in 2014.

The diagnostics technology developer has added a $36m investment co-led by Khosla Ventures and Redmile Group to a $44m BioMed Realty-backed round closed last year.

The online vehicle auction platform secured series C funding from corporate investors SoftBank, SIG, Tencent and Bitauto as it looks to expand its product offering.

Ant Financial and Ucar will collaborate with the automotive trading platform, after making strategic investments that will add to the $11m in funding it raised in 2013.

PNC and First Data joined existing investor Intel Capital in a $31.5m round that increased the medical software provider's overall financing to more than $130m.

Getco-backed investment algorithm platform developer Quantopian will invest the cash in improving its product and education material, and acquiring additional datasets.