Digital Garage and AXA Strategic Ventures co-led the round with VC firm Horizons Capital, bringing the blockchain technology developer's overall funding to $76m.

US-based blockchain technology startup Blockstream secured $55m yesterday in a series A round co-led by AXA Strategic Ventures, insurance group AXA’s strategic investment arm, and internet company Digital Garage.

The corporates co-led the round with venture capital firm Horizons Ventures, with contributions from backers including AME Cloud Ventures, Blockchain Capital, FuturePerfect Ventures, Khosla Ventures, Mosaic Ventures and Seven Seas Venture Partners.

Blockstream is developing ‘sidechain’ products centred on blockchain, the secure database technology that makes cryptocurrencies like bitcoin possible. Its…