Who founded Sidenote?

Sidenote was founded by Jason Lin, Scott Hickmann, Schwinn Saereesitthipitak in 2023.

Who are Sidenote's investors?

Sidenote's investors include Y Combinator.

Where is Sidenote headquartered?

Sidenote is headquartered in San Francisco, US.

Sidenote

DefunctYC S23

San Francisco, US · Founded 2023 · 3 employees · 1 known investors

Find your way into Sidenote

1,973 people in our graph share verified history with the Sidenote team — schools, employers, funds. One of them is your warm intro.

Tobi Cokerunlockedknows Scott Hickmann · together at Stealth (overlapped)

×2knows the team · via Stanford University

knows the team · via Sanas

×2knows the team · via Stanford Artificial Intelligence Laboratory (SAIL)

×2knows the team · via Stanford University School of Engineering

×2knows the team · via Stealth

SideNote is a real-time workplace communication monitoring and coaching platform that uses AI to detect and prevent legal, compliance, and policy violations before messages are sent. The solution analyzes language in employee communications across email, chat, and documents, providing immediate guidance and aggregated insights to HR, compliance, and security teams.

Also known as Agent · Ube

AI & Machine Learning Enterprise Software Future of Work Productivity Automation AIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S23)

Sidenote was founded in 2023 by Jason Lin, Scott Hickmann, and Schwinn Saereesitthipitak.

Jason Lin in 𝕏Co-Founder & CEO2023–2023Jason Lin studied computer science with a focus on human-computer interaction at Stanford. He previously led development of a vaccination tracking platform.

Scott Hickmann in 𝕏Co-Founder2023–2023Scott Hickmann studied Computer Science at Stanford and has worked as a software engineer at Dragonfruit and Teamflow, followed by a CTO role at Sypion.

Schwinn Saereesitthipitak in 𝕏Co-founder · Machine Learning Engineer2023–2023Schwinn Saereesitthipitak has conducted deep learning research at Stanford AI Laboratory and NVIDIA, and previously worked as a cryptography researcher in Stanford's electrical engineering department.

Investors · 1

Y CombinatorSan Francisco · $500K

In the news

Premium: The Hater's Guide to Private Creditwheresyoured.at · Apr 2026

The Subprime AI Crisiswheresyoured.at · Sep 2024

✍️ Sidenote: Meeting follow-up, automatedycombinator.com · Jul 2023

Frequently asked questions

What does Sidenote do?: SideNote is a real-time workplace communication monitoring and coaching platform that uses AI to detect and prevent legal, compliance, and policy violations before messages are sent. The solution analyzes language in employee communications across email, chat, and documents, providing immediate guidance and aggregated insights to HR, compliance, and security teams.
Who founded Sidenote?: Sidenote was founded by Jason Lin, Scott Hickmann, Schwinn Saereesitthipitak in 2023.
Who are Sidenote's investors?: Sidenote's investors include Y Combinator.
Where is Sidenote headquartered?: Sidenote is headquartered in San Francisco, US.