Tactics II Stem Cell Ventures, a venture capital firm set up by Robert and Thomas Palay after they sold NimbleGen Systems to Switzerland-based drugs company Roche in August 2007 for $272.5m, led the round for Cellular Dynamics International .

Cellular Dynamics International (CDI), a US maker of human cells, has raised $30m in its B round to take its total funding since 2004 to $100m.

Tactics II Stem Cell Ventures, a venture capital firm set up by Robert and Thomas Palay after they sold NimbleGen Systems to Switzerland-based drugs company Roche in August 2007 for $272.5m, led the round. Other investors in this financing round include property developer Sam Zell’s Equity Group Investments, Sixth Floor Investors and G Force Investments.

In April last year, CDI raised $40.6m to take its then total raised to $70m.

CDI’s iCell Cardiomyocytes process can produce large quantities of human tissue cells based on stem cells grown from adult tissue developed by founder James Thomson.

James Mawson

James Mawson is founder and chief executive of Global Venturing.