Harvest Power, a US-based provider of renewable energy and fertilizer products from organic waste formerly known as Bekon Energy North American, has added $6m to its $51.7m series B round.
SAM Private Equity provided the latest investment and joins a consortium including New York-listed garbage disposal company Waste Management.
Waste Management had previously invested in Harvest in January last year, a month after a regulatory filing said the portfolio company closed a $10m round.
Venture capital firm Generation Investment Management led the B round, and was joined by peers DAG Ventures, Keating Ventures, Kleiner Perkins Caufield & Byers, Munich Venture Partners and TriplePoint Capital.