Plastomics is an agricultural biotechnology company headquartered in St. Louis that has developed a proprietary chloroplast engineering platform for corn and soybeans. By inserting traits into chloroplast DNA rather than nuclear DNA, the company eliminates pollen out-crossing, delivers maternal inheritance, and achieves higher and more durable trait expression. Its technology is aimed at producing crop varieties with superior insect and herbicide resistance, greater resiliency and improved sustainability. Following a commercial breakthrough in soybean chloroplast transformation, Plastomics plans to enter final commercial-scale field trials for soybean traits over the next 12–24 months. Concurrently, the firm is accelerating development of what it says will be the world’s first chloroplast-based transgenic traits in corn. The company recently secured $5.8 million in Series B funding to advance these initiatives. No operating metrics such as revenue or acreage under cultivation were disclosed in the announcement.

Total raised

$6M

Funding rounds

2

Latest round

Series B

Latest activity

Oct 2025