Arup Banerjee
About Arup Banerjee
Arup Banerjee is based in San Francisco and is the co-founder and CEO of Windfall, a data company he has led since 2016. He studied computer science and economics at Duke University and holds an MBA from the Haas School of Business at UC Berkeley.
Before Windfall he was SVP of Product at Radius Intelligence, a B2B predictive marketing company, from 2014 to 2016. Earlier roles include product management at GoodData and Box, and an associate role at the venture firm Updata Partners from 2008 to 2011. From 2011 to 2013 he was founder and CEO of tally24 (listed on PitchBook as Tally Holdings). PitchBook also lists him as a board member at LeadGenius.
Public databases list a small number of personal investments, between three and four depending on the source. Dated entries include a Series A in SafeGraph (April 2017), a seed round in Improvado (March 2019), a round in Daffy (February 2022) and a seed round in Datalinx AI (January 2026). Crunchbase also lists a Series A in Aside, with no date shown. PitchBook records one exit.
He has invested outside data and software too, including Barber Surgeons Guild (2019) and Oso Climbing Gyms (2020, now out of business).
His AI deal on the Lounge deals desk is Datalinx AI's $4.2M Seed round, announced on January 29, 2026. Datalinx describes itself as an AI data refinery that turns complex data into AI-ready and application-ready assets for enterprise marketing and data teams.
High Alpha led the round, with Databricks Ventures and Aperiam co-investing. The announcement names Arup among the other investors, alongside Frederic Kerrest and Ari Paparo.
His public record points to early-stage rounds (seed and Series A) in data and enterprise software, most of it in the United States. Tracxn lists his top sectors as Enterprise Applications and High Tech. His own background is in data, analytics and marketing technology.
He has not published a check size or stated what he looks for in founders, so neither is given here. PitchBook lists him as actively seeking new investments.
- Datalinx AI: AI data refinery for enterprise marketing and data teams; Seed round announced January 2026, led by High Alpha.
- SafeGraph: Series A investor, April 2017.
- Improvado: marketing data company; seed round, March 2019.
- Daffy: social and platform software company; invested February 2022.
- Aside: Series A listed on Crunchbase; date not shown.
- crunchbase.com/person/arup-banerjee
- pitchbook.com/profiles/investor/432774-10
- wellfound.com/p/arup-banerjee
- tracxn.com/d/people/arup-banerjee/__Pn6fESwfWHlMhBRJV5zTZSaNgQAzMpAL-P
- finance.yahoo.com/news/datalinx-ai-raises-4-2m-133400295.html
- citybiz.co/article/799826/datalinx-ai-raises-4-2m-seed-round
- improvado.io/company/about
Investing activity
Arup Banerjee appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $4M. The most recent is Datalinx AI (Seed, $4.2M, Jan 2026).
Arup Banerjee most often invests alongside High Alpha, AperiamVentures, Databricks Ventures and Frederic Kerrest, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Arup Banerjee
Who is Arup Banerjee?
He is a San Francisco-based angel investor and the co-founder and CEO of Windfall. He previously worked at Radius Intelligence, GoodData, Box and Updata Partners.
Has Arup Banerjee invested in AI startups?
Yes. He was one of the investors in Datalinx AI's $4.2M Seed round, announced January 29, 2026 and led by High Alpha.
What check size does Arup Banerjee write?
No check size is public. Databases show his rounds but not the amount he put in.
What stage does Arup Banerjee invest in?
His recorded investments are seed and Series A rounds. PitchBook lists him as an active angel.
What sectors does Arup Banerjee back?
His listed investments are mostly data and enterprise software, such as Datalinx AI, SafeGraph and Improvado. He has also made a few investments in consumer and other businesses.
Should founders pitch Arup Banerjee if they build data infrastructure?
His career is in data and marketing technology, and his latest AI investment is a data infrastructure company. He has not published what he looks for, so check his recent deals and background before reaching out.
Is Arup Banerjee an angel investor?
Yes. Arup Banerjee invests personally as an angel.
What AI companies has Arup Banerjee invested in?
Arup Banerjee's AI investments include Datalinx AI. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Arup Banerjee invest at?
In the rounds tracked on Lounge, Arup Banerjee has invested at Seed, with a median round of $4M.
Who does Arup Banerjee co-invest with?
Arup Banerjee's most frequent co-investors on Lounge are High Alpha (1 deal), AperiamVentures (1 deal), Databricks Ventures (1 deal), Frederic Kerrest (1 deal) and Aperiam (1 deal).