Chromatin adds $12 million to fuel growth, expand internationally and do more product development. The Chicago-based company, which reeled in $36 million in 2014, is fast-growing and has had early success. Chromatin, founded in 2000, breeds sorghum seeds. Revenue has grown tenfold in the past four years, CEO Daphne Preuss reported. Chromatin is an IllinoisVENTURES portfolio company.