The waste conversion company is preparing a $125m initial public offering, with backers including Waste Management of Canada seeking a return on their investment.

Saudia Aramco Energy Ventures's head pledges the Saudia Arabia-based energy company is looking to become "an integrated energy and chemicals company with greater energy efficiency and use of alternative energy."

The advanced building materials company is backed by BASF, BP and RU-COM, and has just closed a $27m financing round.

In this Darwinian strategy, LanzaTech's $55m round last week was a notable example, or big deal.

The move by Starrmann to CFO roe frees up Aiwar Markow, who was both the corporate venturing unit and head of the parent's finance and controlling division.

The agricultural and biomass technology firm is looking to raise $100m when it floats, with shareholders including Monsanto set for a return on their investment.

3M, which runs its own water filtration business, is investing in water purification specialist HydroNovation through its corporate venturing division.

The waste energy recycling company closes a series C round worth more than $55m from a pool of new and old investors including two Malaysia-based energy corporations.