Companies founded by Michal Sieroslawski

As a business entrepreneur, Michal Sieroslawski has founded two companies: Colipse Coffee in 2024 and Rankavi in 2026.

Software as a serviceFounded
2026

Rankavi

Michal Sieroslawski founded Rankavi in 2026. Rankavi is a software as a service (SaaS) platform that publishes brand mentions in articles on indexed third-party websites. Brands use Rankavi to build mentions that AI search tools such as ChatGPT, Gemini, and Perplexity can find. Brands write their own article or use a done-for-you plan, and most mentions go live within 24 hours.

Michal Sieroslawski has been the founder of Rankavi since 2026.

About Rankavi →
Specialty coffeeFounded
2024

Colipse Coffee

Colipse Coffee was founded by Michal Sieroslawski in January 2024. Colipse Coffee is a roast-to-order specialty coffee brand that roasts every bag in small batches after the order is placed and ships it free across the United States, so customers receive coffee at its peak flavor.

Michal Sieroslawski has been the founder of Colipse Coffee since 2024.

About Colipse Coffee →

Michal Sieroslawski’s positions as founder

CompanyRoleStart dateCountryIndustry
RankaviFounderJun 2026United StatesSoftware as a service
Colipse CoffeeFounderJan 2024United StatesSpecialty coffee