SID Venture Partners

Thirteen general partners share decision-making, each holding a senior operating role at the founding IT-services firms. Dmytro Vartanian, Valery Krasovsky, Andriy Lazorenko, Anton Vaisburd, and Illia Polosukhin are among the named partners. The firm operates through three distinct teams of corporate executives, with no single managing partner controlling allocations — a structure that reflects the consortium origins of the fund.

Deal flow originates from the engineering benches of Sigma Software, IdeaSoft, and Datrics, where partners encounter early-stage teams seeking development resources. The GPs' presence across Eastern Europe and their roles in Y Combinator and blockchain ecosystems surface pre-institutional rounds that generalist seed funds often miss. The firm's website frames this as 'founders investing in founders,' enabled by direct operator networks rather than a scout program or advisor network.

SID operates as a venture fund that can deploy dedicated engineering resources from partner IT-services companies, blurring the line between fund and studio. The GPs do not build startups internally, but they can assign staff engineers and QA teams to portfolio companies — a capability that traditional funds provide only through operating-partner networks. This makes SID function more like a technical co-founder than a passive LP for early-stage teams.

The firm pursues early-stage companies — seed through Series A — that have paid traction and demonstrated market fit. The average initial check is $200K, sized to serve as a lead or co-lead in pre-institutional rounds across CEE and global tech hubs. SID does not typically participate in growth-stage rounds or pre-revenue pre-seed financing.

The firm describes itself as industry-agnostic but shows no portfolio exposure to traditional heavy industry, commodities, or brick-and-mortar retail. Sector tags from disclosed investments concentrate on AI/ML, blockchain, deep tech, B2B SaaS, fintech, and digital health — suggesting a de-facto exclusion of capital-intensive physical-world businesses without a software core.

Sigma Software Labs is the dedicated venture vehicle of Sigma Software Group, one of the three IT-services firms whose executives co-founded SID. Daria Yaniieva serves as Investment Director for Sigma Software Labs, which has deployed $1.4M across 15 portfolio companies. While SID Venture Partners and Sigma Software Labs share GPs and deal flow, the website presents them as separate legal structures — SID as a broader partnership and the Labs as a corporate venture arm.

The firm's disclosed activity consists entirely of direct equity investments in operating companies, with no fund-of-funds commitments or LP positions in other venture vehicles cited on the website. The partnership's value proposition — engineering firepower and enterprise client access — applies only to direct portfolio relationships, making fund commitments unlikely to be a material part of the strategy.