Mann+Hummel was among the investors for a $16.4m round that brought air filter subscription service Second Nature's overall funding to nearly $35m.

Each Friday the Global Corporate Venturing Deal Net rounds up the week’s smaller deals and tracks the emerging companies accessing corporate funds.

The sustainable hydro turbine developer has now raised a total of at least $46m, with Schneider Electric Ventures leading its latest round.

Tepco Power Grid helped the specialised care software developer take its latest round, which already included Line, Mixi, Aioi Nissay Dowa, Akatsuki, Global Kids and Konica Minolta, to $14.3m.

Nana, which has seen demand for its online grocery-ordering app skyrocket in recent days, secured $18m in a series B round co-led by Saudi Technology Ventures.

The mapping software developer has secured $14.1m in a round led by venture firm Everest Venture Capital, two years after being spun off by SF Express.

TusStar-backed semiconductor laser developer Berxel received $14.1m in a round that was led by Vision Knight Capital.

CCB and CO2 Management came onboard in an $11.3m round for ZEG as it continutes work on its clean hydrogen generation facility.

Legend Holdings-backed semiconductor laser developer Berxel received $14.1m in a round that was led by Vision Knight Capital.

Pupil, developer of a spatial analysis system for real estate, raised $16.1m in a round led by property developer City Developments that will fund product development.