Indian supplements brand The Stack raises Rs 21.5 crore led by Sauce, OTP Ventures, Huddle Ventures

The Stack, an India-based supplements brand, has raised Rs 21.5 crore in its latest funding round, co-led by Sauce, OTP Ventures and Huddle Ventures.

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The startup previously raised Rs 5.5 crore in its first institutional funding round in January 2026. The Stack said its business has grown fivefold over the past six months, and it is targeting revenue growth of six to seven times in FY 2026-27 compared with FY 2025-26.

Founded by Shreya Jain and Kshitij Rihal, The Stack develops nutritional supplements using clinically studied ingredients, with a focus on formulation and ingredient transparency. The startup focuses on a limited range of products across categories such as sleep, gut health and functional health, rather than expanding into a broad product portfolio.

It aims to expand its presence in India’s supplements market while developing products aligned with international quality standards.

“A lot of building The Stack has been saying no. No to launching fifty products, no to trending ingredients we don’t believe in, no to upselling people things they don’t need. We’d rather have five products people keep coming back to than fifty they try once. We’re playing a long game, and our customers are rewarding that patience,” said Kshitij Rihal, Co-founder of The Stack.

“Many brands solve for distribution before getting the product right. Having backed Kshitij and Shreya since their earliest days, we’ve witnessed them do it the right way, staying true to their standards on formulation and efficacy, and their industry leading repeat rates prove it. With that foundation, we’re excited to double down as they expand across channels and make The Stack the go-to choice for India’s evolved supplements consumer,” said Ishaan Khosla, Partner at Huddle Ventures.

The startup will use the funds to grow its team, invest in research and development, and expand its product portfolio.

“Clean label and traceable sourcing have transformed how India eats, and supplements are next. The Stack is leading that shift with world-class formulations, globally sourced raw materials and complete transparency. As a user myself, I am thrilled to back Kshitij and Shreya, as they build the most trusted brand in the category,” added Samina Hamied, Founder & Managing Partner, AYRA Ventures, who participated in the round.

“We want The Stack to be synonymous with trust and transparency. When we launch a product, we want people to already know we’ve done the homework on the ingredients, the dosage and the sourcing, and that we’re not trying to upsell them. That’s the bar,” added Shreya, Co-founder of The Stack.

“We believe the largest supplement brands of the next decade will be focused and use case led, not catalogues of everything. The Stack is the first in India built that way, and the category will increasingly be measured against them,” Suhail Sameer from OTP Ventures added.