The Stack is a Goa-based supplements brand founded in 2024 by Shreya Jain, a chemical engineer with experience in pharmaceutical manufacturing who earlier founded a technology startup acqui-hired by Byju's, and Kshitij Rihal, who previously co-founded and scaled the mattress brand Flo. Operating as Stack Nutraceuticals Private Limited, it makes a deliberately small range of supplements for sleep and gut health using clinically studied, globally sourced and named ingredients, including magnesium bisglycinate from Balchem, glycine, prebiotic fibre, a probiotic and the branded postbiotic EpiCor,
1StartupFox story
2024Founded
NutraceuticalsSector
Oct 2026Latest coverage
Funding
The Stack has raised $2.8M across 2 disclosed rounds, most recently a Seed in October 2026.
$2.8MRaised
SeedLatest round · October 2026
2Events
Chart appears once 1 more funding round is recorded — below that a chart shows less than the table does.
October 2026Seed$2.3MSauce.vc (co-lead), OTP Ventures (co-lead), Huddle Ventures (co-lead)
January 2026Pre-seed$580KOTP Ventures (co-lead), Huddle Ventures (co-lead), angel investors
Investor roster
Every disclosed backer and how often they've written a cheque — repeat names are the strongest conviction signal on the cap table.
New · Latest leadSauce.vc (co-lead)1 round · 2026
Huddle Ventures (co-lead)2 rounds · since 2026
OTP Ventures (co-lead)2 rounds · since 2026
angel investors1 round · 2026
Aggregated automatically from the disclosed rounds above.
Founded by Kshitij Rihal, co-founder of the mattress brand Flo, and Shreya Jain, a chemical engineer from pharmaceutical manufacturing, after Rihal struggled to find supplements in India matching global quality while training for long-dista ↗
January 2026 · funding
Pre-seed — $580K, led by OTP Ventures (co-lead).
October 2026 · funding
Seed — $2.3M, led by Sauce.vc (co-lead).
Oct 2026 · milestone
Reports fivefold growth in six months on a five-product sleep and gut range, with one in three customers reordering within six months and the top tenth of customers bringing in 30% of revenue. ↗
The rest of The Stack's profile is free
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The Stack is a Goa-based supplements brand founded in 2024 by Shreya Jain, a chemical engineer with experience in pharmaceutical manufacturing who earlier founded a technology startup acqui-hired by Byju's, and Kshitij Rihal, who previously co-founded and scaled the mattress brand Flo. Operating as Stack Nutraceuticals Private Limited, it makes a deliberately small range of supplements for sleep and gut health using clinically studied, globally sourced and named ingredients, including magnesium bisglycinate from Balchem, glycine, prebiotic fibre, a probiotic and the branded postbiotic EpiCor,
Who founded The Stack?
The Stack's founders and leadership on record at StartupFox are Shreya Jain and Kshitij Rihal.
How much funding has The Stack raised?
The Stack has raised $2.8M across 2 disclosed rounds. The most recent was a $2.3M Seed in October 2026.
Who are The Stack's investors?
Disclosed investors in The Stack include Sauce.vc (co-lead), OTP Ventures (co-lead), Huddle Ventures (co-lead), angel investors.
What is the latest news on The Stack?
The most recent StartupFox coverage is “The Stack Raises ₹21.5 Crore on a Bet That Indians Will Pay More for Better Magnesium” (14 October 2026). All stories are listed on this page.
Sources & updates
This profile is compiled by the StartupFox desk from company announcements, regulatory and exchange filings (RoC/MCA, NSE/BSE) and our own reporting. 0 of 2 funding rounds link to a named source.
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