SANJAY NATH

Nath spent his early career in Silicon Valley, with stints at Sun Microsystems, PwC and IBM Global Services in roles across management consulting and product management. He later ran Loxodrome, a cross-border business-process outsourcing venture.

Before Blume, he cut his investing teeth with Mumbai Angels, one of India's first angel networks. In 2010 he co-founded Blume Ventures with Karthik Reddy, betting on Indian seed-stage tech when the category barely existed.

The firm raised a $22 million first fund in 2011, then scaled hard: a $60 million Fund II in 2015, a $102 million Fund III, and Fund IV closing above $250 million in 2021. By 2025 Blume had backed over 175 startups and crossed $900 million in assets.

Nath focuses on cross-border AI and SaaS deals and led Blume's bets on GreyOrange, Locus, Yulu, LambdaTest and Sprinto.

Blume Ventures, Mumbai Angels, Draper Venture Network, Arka Venture Labs

Nath backs founders at the earliest stage, often before there is a real product. His check is small and early, seed to pre-Series A, where the risk is highest and the potential multiple is largest.

He likes to write conviction checks and then stay close, adding value through his network rather than just money. He has said Blume wants to be one of the first ports of call when a founder wants to share an idea.

He also wants proof, not just a pitch. On the consumer side he looks for a real product with real downloads, and on the enterprise side he wants paying customers.

His whole philosophy is that he is tracking a company over time, not judging it in one meeting.

Blume's very first fund is the win that made the firm. Raised at just $22 million in 2011, it went on to return more than 5x, with a full-lifecycle expectation of around 6x.

The bulk of that came from a handful of names. GreyOrange, Carbon Clean and Turtlemint together delivered close to three times the entire fund's value.

That is the seed-fund math working exactly as designed: a few outliers pay for all the misses and then some. It also gave Nath the track record to raise every fund that followed.

The honest weak spot of Blume's early years was structural, and Nath has talked about it openly. Writing tiny first checks from a $22 million fund meant Blume often could not follow on hard into its own winners as they scaled.

Bigger, later-stage funds piled into those same companies and diluted the early backers. The lesson he carried forward was that conviction has to come with the ammunition to keep buying.

Later Blume funds grew to hundreds of millions partly to fix exactly this problem and hold ownership as companies grew up.

Nath believes in backing people over polished plans, because at seed stage the plan always changes. He treats investing as a long relationship, not a single decision, hence his line that investment is a line and not a point.

He is a believer in the India story, arguing that the country's time has come and that local founders now have real role models to copy. He is also clear-eyed about how hard the fund business is.

He has said raising money for a fund is 10 times tougher than raising for a startup, because you are pitching people who compare you against gold, the stock market and rival funds abroad.

Nath keeps his personal and family life private, and little is publicly documented. He is based in Mumbai and Bangalore, where Blume runs its operations.

Nath earned his undergraduate degree at BITS Pilani, one of India's top engineering schools, and later did an MBA at UCLA's Anderson School of Management in the US. That mix, Indian engineering plus American business training, shaped his cross-border lens.

He still serves on the board of the BITS Pilani Silicon Valley chapter.