Peer Richelsen in

Peer Richelsen

Energizer · DISC type I
Co-Founder, Chairman at Cal.com, Inc.
📍 United States

Peer Richelsen is the Co-Founder of Cal. com, aiming to connect a billion people through open-source scheduling. A serial entrepreneur and Y Combinator alumnus, he has a background in Business Information Technology from Kiel University and previously founded companies like Lean Hire, which was acquired. Colleagues describe him as driven, ambitious, and visionary.

From a young age, Peer has been immersed in tech and internet culture, starting with leading a gaming clan which led him to learn HTML and sell websites. His entrepreneurial journey began with a physical product for "Magic: The Gathering" cards, which he sold globally after it went viral on Reddit.

Interesting fact: At 15, he hacked his PlayStation Portable, embracing the risk for the sake of improvement—a philosophy he now applies to his startups.

Read the full overview →
Experience
10 Years
Current Role
Co-Founder, Chairman
Job Level
Leadership
Location
United States
Personality Overview

How Peer shows up

Enthusiastic
Relationship Oriented
Full Of Energy

They are friendly, approachable and love to make new connections. They are not always early adopters but can be pursuaded by leveraging strong relationships. They are really good at seeing what the long-term impacts of their decisions could be.

Priorities

Topics Peer cares about

Open-Source Software
He is the co-founder of Cal. com, an open-source scheduling platform, and frequently discusses the advantages and future of open-source software in interviews.
Founder Journey
A Y Combinator alumnus and serial entrepreneur, he has launched over 30 products in more than 10 years, experiencing failures, an acquisition, and venture funding.
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Career

Work history

6-2021
Co-Founder, Chairman
Cal.com, Inc.
On Deck
9 mos
6-2020 - 6-2021
Founder, CEO
Lean Hire
1-2016 - 3-2020
Co-Founder, CEO
Mage App, Inc.
3-2015 - 10-2016
Founder
Bordifies.com
In the press

Media appearances

No media yetWe could not find public media appearances for this person.
Education
Alumni
Y Combinator
2014 - 2017
Business Information Technology
Kiel University
Social presence
in
Behavioral profile

DISC profile (public)

I

Influence (I)

Influence (I) reflects the degree to which a person prefers to work by influencing or persuading others. Those scoring high tend to be people oriented, motivated by social recognition and building relationships.

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