SixThirty is a St. Louis-based venture capital firm founded in 2013 that invests at the intersection of health, wealth, and privacy. See contact routes.
SixThirty is a St. Louis-based venture capital firm founded in 2013 that invests at the intersection of health, wealth, and privacy, leveraging corporate partnerships to accelerate startup adoption. The firm targets early-stage B2B companies in fintech, insurtech, cybersecurity, and digital health, with a primary focus on pre-seed to seed rounds and secondary focus on Series A. SixThirty typically leads or co-leads investments, deploying checks ranging from $500,000 to $3 million for seed rounds and up to $5 million+ for Series A. Notable portfolio companies include Reblaze, a cloud-based web protection provider; Silverfort, which secures corporate authentication; and Bankjoy, a modern banking technology platform for credit unions. The firm distinguishes itself through a "pioneering spirit" mentality and an operational tagline of "Nurturing speed to trust," while recently emphasizing AI/ML applications across risk quantification and predictive underwriting. As of late 2025, SixThirty has invested in over 137 companies with 23 positive exits recorded in 2025 alone, demonstrating strong portfolio velocity.
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