Overview

What they do
Johnston Associates (JAI) is a venture capital firm that provides seed capital to emerging healthcare-related startup businesses, with a particular emphasis on the pharmaceutical and biotechnology industries. Founded by venture capitalist Robert F. Johnston in 1968, the firm has launched companies from the ground up around unique and commercially promising technologies and has also financed more established small companies with demonstrated growth potential. Its portfolio spans pharmaceuticals, diagnostics, cell separations and imaging, drug discovery and delivery, toxic waste remediation, genetic engineering, and biopesticides, including both early-stage ventures and publicly traded companies. JAI also supports portfolio companies with managerial and technical assistance and leverages an extensive network in academia, venture capital, and medical communities to help secure ongoing capital and strategic resources.
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What they look for
Johnston Associates invests its own private capital as seed funding in emerging healthcare-related startups, focusing on pharmaceutical and biotechnology sectors and supporting them with ongoing financial, managerial, and technical assistance.
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Stage
Seed
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Sectors
Healthcare
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Based
Princeton, US
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Sources

2026-08-29jaivc.comJOHNSTON ASSOCIATES (JAI) was founded by venture capitalist, Robert F. Johnston, in 1968.

Portfolio, cheque size and the rest

The 18 companies they have backed that we can see, the cheque they write, and whether they are deploying right now.

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