San Diego-based Verimatrix, which does watermarking and DRM for digital video for IPTV, pay TV and mobile TV, among others, has received an undisclosed amount in its third round of funding, led by Goldman Sachs, and included all of the company’s second round investors, Crescendo Ventures, Cipio Partners and Mission Ventures. Though the specific amount was not disclosed, the company said this was its biggest round to date, and with Goldman involved, likely to be in high tens of million. It has raised $23 million in its previous two rounds.

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Verimatrix’s technology is intended to secure pay-TV networks across the three screens, with emphasis on IPTV. The company, founded in 1999, says it has more than 150 IPTV customers in 32 countries.