Sergey Butko

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Sergey Butko

Sergey Butko

CEO and Co-Founder

Sergey is a tech entrepreneur based in Kraków, Poland, recognized by Forbes 30 Under 30 Europe (2019, for CallPage) and Forbes 30 Under 30 Poland (2023, for Certifier). He co-founded CallPage, a VC-backed B2B SaaS that raised $4.5M and was later acquired by SaaS Labs in 2021, where he led marketing, growth, and lead acquisition.

In 2020, Sergey launched Certifier, a platform building digital credential infrastructure through APIs and tools for issuing, managing, and verifying certificates, diplomas, and badges. Today, Certifier serves more than 2,000 business and institutional clients worldwide, and Sergey is a frequent public voice on digital certification, identity, and the future of credentialing.

Expertise:

SaaS Growth

Digital Credentials

APIs

Product Marketing

Company Operations

Education:

  • BA Economics at Krakow University of Economics, Poland

    Studied economics and business management with a curriculum covering economic theory, finance, and quantitative analysis. Built a foundation in organizational strategy, international business, and market-driven decision-making.

Latest articles by Sergey

6 Best Diploma Generators cover image

6 Best Diploma Generators

35+ Top Ideas for Recognition Badges for Your Students or Employees cover image

17 May, 2022

35+ Top Ideas for Recognition Badges for Your Students or Employees

7 Signs Why You Need an Automatic Certificate Generator cover image

7 Signs Why You Need an Automatic Certificate Generator

How to Add Certifications to LinkedIn and Spice up Your Profile cover image

How to Add Certifications to LinkedIn and Spice up Your Profile

How To Make a Certificate in Certifier? 5 Easy Steps! cover image

How To Make a Certificate in Certifier? 5 Easy Steps!

The 8 Best Credly Competitors to Watch Out for in 2022 cover image

The 8 Best Credly Competitors to Watch Out for in 2022

Certificate Background: All You Need To Know cover image

Certificate Background: All You Need To Know

Credly Pricing: Is Credly Worth It in 2025? (+ 8 Alternatives and Comparison Table) cover image

Credly Pricing: Is Credly Worth It in 2025? (+ 8 Alternatives and Comparison Table)

How to Create a Webinar Certificate in 3 Easy Steps cover image

27 Feb, 2022

How to Create a Webinar Certificate in 3 Easy Steps

Create and Send Digital Credentials

Take your digital certificate creation process to the next level. Design, issue, send, and track highly personalized certificates & badges in minutes.

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