The underwater drone developer, a spinout of University of Tsukuba, raised the funding in a Beyond Next Ventures-led round that included several corporates.

Boston Scientific was among the investors that provided $14.1m in series C-1 funding for the medical device developer, taking its total funding to about $46m.

Mobile payment platform Ezetap, which counts American Express as an investor, has now raised $51m in total, after securing funds in a JS Capital-led round.

Petroleum trading platform Zhaoyouwang has secured $31.8m in a series B round that included Huochebang and SIG Asia Investments.

The Korean accelerator operator has formed a $50m early-stage fund with steel pipe maker Seah and Korea Development Bank as anchor investors.

Vista Equity Partners has agreed to buy Applause, a brand services provider that had raised $115m from investors including corporate venturing unit Accenture Ventures.

Strategic investors Aetna and Horizon Healthcare Services were among the investors in a $36.6m round that took AbleTo's total funding to more than $57m.

Valid Soluciones Tecnologicas and existing investors Qualcomm and Audi Electronics Venture took part in a round that boosted Cubic's total funding to $88m since 2006.

Point-of-sale marketing data provider Bridg has raised $11m in a Morpheus Ventures-led series B round that included Visa.

Yahoo Japan has led a series B round for the University of Oulu spinout, which uses geomagnetic activity to detect a object's location in a room.