Altaeros, the developer of an aerial broadband provision system, has raised $7.5m from SoftBank, the investor that supplied $7m for it in 2014.

The agricultural insurance provider has closed a series A round co-led by Finistere Ventures and Seed 2 Growth Ventures and backed by GuideOne Insurance.

The digital currency exchange platform, which is backed by investors including NTT Docomo, New York Stock Exchange, USAA and BBVA, is now valued at $1.6bn.

Birchbox, the beauty product subscription service that has raised $87m in financing from backers such as Comcast, has reportedly begun talks with retailers including Walmart over an acquisition.

Media group PCCW's online video spinout has received funding from Foxconn's corporate venturing unit as well as Hony Capital and Temasek.

The JE Dunn building management technology spinout has raised $6m from investors including its parent company, following a $5m series A round last year.

The BioMerieux and Stratec-backed medical diagnostics technology provider has raised $8.5m in a T.Rowe Price-led private placement that will be added to a $46m series D round.

Iheima has raised $27.3m in its initial public offering, becoming the first incubator to float in China and providing an exit to corporate investors Toread and Youyou.

Seed investor Bloomberg Beta returned to contribute to the web development startup's latest round, alongside Andreessen Horowitz, Tank Hill Ventures and Designer Fund.

Existing investor Santander InnoVentures returned for the identity verification technology developer's $13.9m series B round, closed eight months after its series A.