Kaizen Platform, the developer of a crowdsourcing platform enabling businesses to find growth hackers, has secured $5m from Fidelity Growth Partners Asia and GREE Ventures, and will use the funds to expand overseas and increase its staff numbers. The Japan-based company previously raised $800,000 in August 2013 in a seed round backed by GMO Venture Partners, part of internet company GMO, as well as GREE and venture capital firm CyberAgent.

ESN Group, a Russia-based investment holding company focused on energy,…