(Corrects currency from euros to dollars in first paragraph of story published on June 17.)
The three join investors including Evonik Industries AG and ABB Ltd., Emerald said today in an e-mailed statement. The Zurich-based firm declined to say how much each invested.
The fund is the third from Emerald, which has put money into companies including marine-energy developers Pelamis Wave Power Ltd., Oceanlinx Ltd. and AquaSpy Inc., a developer of systems to monitor soil moisture and boost crop yields.
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