James Kuklinski is a General Partner on Spark Capital’s growth team who invests in fintech and software platforms across. See sector focus and contact routes.
James Kuklinski is a General Partner on Spark Capital’s growth team who invests in fintech and software platforms across sectors like gaming, enterprise infrastructure, and consumer internet, primarily at Series B stages with check sizes ranging from $5M to $15M (sweet spot $10M). His notable portfolio includes growth-stage companies such as Sigma Computing ($200M Series D in 2024), Taptap Send ($65M Series B in 2021), Cover Genius, and Retym (a semiconductor company, lead deal in March 2025). Kuklinski’s distinctive thesis centers on partnering with founders who use first-principles thinking and prioritize customer insights aligned with their vision, believing that ambition shaped by lived experience outweighs pedigree.
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