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Alexey Stoletny is a General Partner at SID Venture Partners, Managing Director at Sigma Software US, and CTO at Clean.io. He previously co-founded Sigma Software, scaling the European IT consulting firm to thousands of employees, and served as VP of Engineering at HUMAN. In December 2021, Stoletny co-launched SID Venture Partners with a $15 million target fund to back early-stage technology companies. Through the firm, he recently participated in a $6 million seed round for Fraction AI in December 2024 and a $7 million seed round for TAC in November 2024. He holds a Master of Science in Computer Science and is listed as an inventor on four issued United States patents related to software engineering. His current focus centers on pre-seed and seed-stage venture capital investments across the B2B software, deeptech, and fintech sectors.
Alexey Stoletny is a distinguished General Partner at SID Venture Partners, a prominent firm dedicated to investing in the next generation of technology leaders. In his role, Alexey is instrumental in shaping the firm's investment strategy, leading deal sourcing, due diligence, and portfolio management. He is deeply committed to partnering with founders from the earliest stages, providing not just capital but also strategic guidance, operational support, and access to a vast network.
SID Venture Partners, under Alexey's leadership, typically targets early-stage startups with strong potential for global scalability. While specific investment focus areas can evolve, Alexey has a keen interest in sectors such as B2B SaaS, artificial intelligence, fintech, cybersecurity, and health tech. He looks for companies that demonstrate innovative technology, a clear market need, a defensible competitive advantage, and, most importantly, a passionate and capable founding team. His approach is hands-on, working closely with entrepreneurs to navigate challenges, accelerate growth, and prepare for subsequent funding rounds.
Alexey's career background is rooted in a blend of entrepreneurial experience and strategic investment. Prior to his tenure at SID Venture Partners, he honed his skills in various capacities within the technology and finance sectors. This experience provided him with a comprehensive understanding of what it takes to build and scale successful ventures, from product development and market entry to fundraising and team building. His journey has equipped him with a unique perspective on identifying market gaps and backing solutions that truly make a difference. He has a proven track record of identifying emerging trends and supporting companies that capitalize on these shifts.
While specific individual notable investments are often attributed to the firm as a whole, Alexey has been a key driver in several successful portfolio companies within SID Venture Partners. He has been instrumental in guiding companies through critical growth phases, helping them secure follow-on funding, expand into new markets, and achieve significant valuations. His contributions have consistently focused on fostering sustainable growth and creating long-term value for both the founders and the firm's limited partners. Alexey Stoletny continues to be a driving force at SID Venture Partners, actively seeking out and empowering the innovators who are building the future.
Alexey Stoletny is a General Partner at SID Venture Partners, where he focuses on identifying, investing in, and supporting early-stage technology companies. He is known for his strategic insights and hands-on approach with portfolio companies.
Alexey Stoletny primarily invests in early-stage technology companies across various high-growth sectors. His interests often include B2B SaaS, artificial intelligence, fintech, cybersecurity, and health tech, seeking innovative solutions and strong founding teams.
Alexey Stoletny works as a General Partner at SID Venture Partners, a venture capital firm dedicated to backing promising early-stage technology startups.
