About us

At Impactso, we simplify the complexities of impact measurement through smart tools and tailored methodologies, making data-driven insights more accessible for mission-driven organizations. Our diverse team shares a commitment to advancing Impactso’s mission of empowering positive social change.

Hana Stelzer

Founder & CEO

Sociologist specialized in social impact, gender equality and sustainable development. Founder of Impactso, s. r. o. Former Director of the Czech Women’s Lobby, a national association of organizations promoting gender equality & member of European Women’s Lobby. Former Member of the Government’s Council for Sustainable Development of the Czech Republic. Hana’s motivation is to build a bridge between NGOs and companies through measurable outcomes.

Ondřej Buček

Product Developer

Created the MVP of the Impactso software and contributes to product strategy, SaaS development planning, business planning, and user testing.

Irena Kolafa

Marketing Manager

Leads marketing and business development, and coordinates the rollout of the new Impasto brand and communication strategy.

Hubert Topinka

Impact Corporate Advisory

Academic with a strong business perspective. Provides consulting for companies on ESG and CSR impact.

Yasmine El Baggari

Strategic Advisor from Canada

Provides guidance on product strategy, international partnerships, and business development for Impactso.