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Sift

Founded 2015 · 9 known investors

Find your way into Sift

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

Paul Kwanunlockedknows Jud Bowman · together at Stanford University (overlapped)
×10knows the team · via Stanford University
knows the team · via Københavns Universitet - University of Copenhagen

Sift, founded in 2015, collects smartphone app-installation data to build user profiles and uses AI and machine learning to process mobile ad requests for hypertargeted app install advertising. It serves advertising clients seeking to target mobile app install campaigns.

AdTechAI & Machine Learning

Founders & leadership

Sift was founded in 2015 by Jud Bowman, Slawek Pruchnik, Jesper Rasmussen, and Aaron Schwager.

JBJud Bowman
Jud Bowmanin𝕏Founder & CEOJud Bowman co-founded Motricity while a high school student and took leave from Stanford to lead it to over $100 million in revenue before taking it public. He subsequently founded Appia, a mobile user acquisition network that delivered over 100 million app installs and was acquired by Digital Turbine in 2015, and then founded Sift Media in 2015 to apply AI and machine learning to mobile app install advertising.
SP
Slawek Pruchnikin𝕏Co-founder, Chief Technology Officer
JRJesper Rasmussen
Jesper RasmusseninCo-founder & Chief Software Architect2016–2025He brings 25+ years of software engineering experience, with expertise in Scala, Java, distributed systems, and database technologies.
AS
Aaron SchwagerinCo-founder

Investors · 9

Alerion VenturesCharleston
Elevate Innovation PartnersNew Yorkvia Shreyas Chityala · inferred
CIVreportedVenice Beach
Fika VenturesreportedCulver City · $250K – $2M
GV (Google Ventures)reportedMountain View · $250K – $50M
Insight PartnersreportedNew York · $120M – $350M
Riot VenturesreportedVenice · $3M
StripesreportedNew York
Union Square Ventures (USV)reportedNew York City · $1M – $8M

Funding

SEC filings, press & company announcements

$42M disclosed across 1 of 4 rounds · 2021–2026

Source: company announcements and press reports — follow each round's link for the claim.

In the news

Sift Raises $42M Series B to Pioneer AI Infrastructure for Hardwarelatimes.com · Apr 2026/C O R R E C T I O N -- Sift/prnewswire.com · Mar 2026Sift Raises $42M Series B to Build AI Infrastructure for Mission-Critical Machinesfinance.yahoo.com · Mar 2026Sift raises $42 million in Series B round - SpaceNewsspacenews.com · Mar 2026SIFT HEALTHCARE RAISES $20M SERIES B FUNDING ROUND TO ENHANCE AI-POWERED PAYMENT SOLUTIONSprnewswire.com · May 2024Sift Raises $50 Million at a Valuation Over $1 Billion and Expands its Executive Leadership Team to Help Companies Fight the Growing Fraud Economyglobenewswire.com · Apr 2021Sift Science raises $30M to prevent fraud everywhere onlinetechcrunch.com · Jul 2016Sift Science (YC S11) raise $18M to stop credit card fraud with machine learningtechcrunch.com · May 2014

Frequently asked questions

What does Sift do?
Sift, founded in 2015, collects smartphone app-installation data to build user profiles and uses AI and machine learning to process mobile ad requests for hypertargeted app install advertising. It serves advertising clients seeking to target mobile app install campaigns.
Who founded Sift?
Sift was founded by Jud Bowman, Slawek Pruchnik, Jesper Rasmussen, Aaron Schwager in 2015.
Who are Sift's investors?
Sift's investors include Alerion Ventures, Elevate Innovation Partners, CIV, Fika Ventures, GV (Google Ventures), Insight Partners, Riot Ventures, Stripes and 1 more.
How much funding has Sift raised?
Sift has disclosed $42M raised across 1 of its 4 known rounds.