The corporate venturing unit of US-based technology company Google seals its latest in a busy run of seed deals, backing a company launched last month which was looking for angel funding.

The renewable energy company acquires competitor Coastal Supply, after obtaining an extra $1.3m in funding four days before.

BASF follows on from its initial support of biotechnology start-up Baseclick with additional funding.

Global Corporate Venturing lists the venture backers of this year's and last year's winners of the entrepreneurial competition run by the US corporate.

The mobile application company, which monitors radiation from mobile handsets, has picked up seed funding from a range of investors.

Taptera gets off the ground with financing from Salesforce.com, with its first app to be released shortly.

The corporate venturing unit, which was set up in March, had done one deal before its parent was bought by WPP.

Google Ventures is hoovering up early stage deals in a fairly unusual move for the venture unit of a large corporate.