Christopher Calnan

Staff Writer- Austin Business Journal

Roll-up software company Silverback Enterprise Group has acquired two more companies.

Austin-based Silverback revealed Wednesday that it bought Boston-based PowerSteering Software Inc. and Montreal-based Tenrox Inc. for undisclosed amounts. The two will be combined and operate in Austin under the PowerSteering Software name, according to a Silverback news release.

Austin Ventures-backed Silverback is another one of the firm’s roll-up portfolio companies that grow by acquiring and combining similar companies. Austin Ventures, which bills itself as a combination growth equity and venture capital firm, previously announced its plan to invest up to $50 million in Silverback.

In November 2010, Silverback Acquisition Corp. reported receiving $11.5 million from 14 investors one week after announcing its formation. In September 2011, it acquired California-based network management software maker Visionael Corp. for an undisclosed amount.

Sign up for the ABJ-E news blast email to stay on top of business intelligence news for Central Texas’ entrepreneur community.