Pick of the day
Tiny Health
An at-home microbiome testing company that started with a shotgun-sequenced gut test for babies and now covers every life stage, backed by an oversubscribed 33 million dollar Series B as its practitioner business quadruples and revenue keeps doubling.
- Problem
- 7
- Traction
- 8
- Founders
- 7
- Market
- 7
- Novelty
- 6
Why today
Today's pick is Tiny Health, the Austin-based microbiome testing company whose oversubscribed 33 million dollar Series B, announced this week and led by B Capital, stood out against a day of otherwise solid but more incremental rounds in voice AI, Gulf fintech and identity infrastructure. What makes it the standout is the combination of real, compounding traction, 1,624 percent three-year revenue growth, nearly 200,000 customers and a B2B practitioner arm that quadrupled in a year, with a founder story rooted in a genuine unmet need: Cheryl Sew Hoy built the company's first product after her own child's C-section birth was followed by eczema and a food allergy she couldn't get answers about elsewhere.
Problem
Parents and, increasingly, adults managing chronic conditions have had few reliable ways to understand what is happening in their gut microbiome, a system now linked to immunity, allergies, digestion and long-term health. Standard pediatric and primary care visits rarely include microbiome testing, and the at-home tests that do exist have historically targeted adults with narrower, RNA-based panels that miss fungi, viruses, archaea and parasites. That left a gap for parents trying to understand a baby's first 1,000 days of gut development, widely considered a critical window, and for adults whose practitioners had no standardized way to act on microbiome data.
Product
Tiny Health's tests use shotgun metagenomic sequencing to screen for more than 120,000 organisms, spanning bacteria, fungi, viruses, archaea and parasites, a broader sweep than narrower RNA-based rivals. The company launched in 2022 with a gut microbiome test for babies alongside gut and vaginal tests for mothers, then expanded into testing for the whole family. Pricing starts at 249 dollars, or 169 dollars for members of its Tiny+ subscription. Alongside the new funding, the company is also building TinyAI, an AI system trained on its proprietary dataset of nearly 200,000 microbiome profiles, and launching a 5 million dollar Microbiome Research Program.
Traction
Tiny Health has served nearly 200,000 customers and works with more than 6,000 healthcare practitioners, and the company says its three-year revenue growth has reached 1,624 percent, with revenue at least doubling annually and on pace to triple by the end of this year. Revenue now splits roughly evenly between its direct-to-consumer tests and Powered by Tiny, its practitioner-facing business line, which grew fourfold over the past year. Adult testing has grown enough to now outpace pediatric testing by volume, a notable shift from the company's original baby-first focus. Tiny Health also ranked No. 208 on the 2026 Inc. 5000 list.
Team
Tiny Health was founded in 2020 by Cheryl Sew Hoy, a serial entrepreneur and mother of three. She started the company after her first child, born by C-section, developed eczema and a food allergy, an experience that led her to research infant gut microbiome development and the importance of a baby's first 1,000 days. The company launched its first product in 2022. As part of the new round, Nick Whitehead, a senior principal at lead investor B Capital, is joining Tiny Health's board of directors.
Funding
Tiny Health raised 33 million dollars in an oversubscribed Series B round, announced this week and led by B Capital, with participation from new investors including Black Opal Ventures, Denver Ventures, Pave Health Ventures, Alumni Ventures, Gaingels and Pari Passu Ventures, alongside returning backers Spero Ventures, The Venture City and Overwater Ventures. The round brings Tiny Health's total funding to 46 million dollars, following an 8.5 million dollar Series A led by Spero Ventures in March 2024. The company is using the new capital to fund clinical research, expand practitioner education and grow its Powered by Tiny platform.
Competitors
Tiny Health's closest rivals in at-home microbiome testing include Viome, which has raised roughly 211 million dollars but takes a narrower RNA-based approach aimed at adults, along with Zoe and Ombre, formerly known as Thryve. Evvy and Juno Bio compete more narrowly in vaginal microbiome testing. Tiny Health differentiates on breadth, screening for more than 120,000 organism types via shotgun sequencing rather than a narrower RNA panel, and on covering every life stage from infancy through adulthood rather than specializing in one demographic.
VC lens
Would YC fund it? Likely yes at an earlier stage: a founder solving a problem she lived through, durable triple-digit revenue growth, and a B2B channel quadrupling in a year are exactly the signals YC looks for, though the company is now well past seed and accelerator territory.
Biggest risk: Tiny Health competes in a consumer health category that has drawn regulatory and scientific scrutiny over whether at-home microbiome tests can reliably translate into actionable medical advice, and better-funded rivals like Viome have raised far more capital to fight for the same category-defining position; sustaining 1,624 percent growth off an eight-figure revenue base gets structurally harder as the company scales.
Runners-up
Modulate
$25 million round led by Future Ventures to scale its audio-native AI models that detect fraud, harassment and deepfakes on voice calls in real time. (Sep 28)
erad
$22 million Series A led by Middle East Venture Partners to expand its SME alternative-financing platform across the Gulf Cooperation Council. (Sep 28)
Baselayer
$35 million Series A led by M13 to launch an Agentic Identity Suite that helps financial institutions verify AI agents acting on customers' behalf. (Sep 22)
Ande
$52 million in combined seed and Series A funding led by Lightspeed Venture Partners and Redpoint Ventures to build an AI platform managing the 325 billion dollar corporate entertainment spend market. (Sep 23)
Archive
38 reports · click a row to open it| Date | Winner | One-liner | Runners-up | Open |
|---|---|---|---|---|
| 2026-10-19 | Modal Labs | 750 million dollar Series D led by Accel at a 15.75 billion dollar valuation, as the AI infrastructure startup says its annualized run rate crossed 1 billion dollars with usage tripling in five months, built on serverless GPU access for inference, training and agent sandboxes | OMass Therapeutics, Scanntech, North.cloud, Fortem Technologies | |
| 2026-10-18 | Mueon | 65 million dollar Series A led by Maverick Silicon, as the Portland semiconductor startup founded by two Intel veterans scales Cubelets, modular 3D blocks bundling compute, memory, power and cooling to cut AI data center power and density limits, already in use by AI chip startup d-Matrix | Estuary Biotherapeutics, Fission, Otter Health, HyLight | |
| 2026-10-17 | Chariot Claims | 10 million dollar Series A led by Silverton Partners, as the rebranded ClaimClam legal-tech platform scales automated matching of consumers to mass arbitration and class-action claims over hidden fees and hard-to-cancel subscriptions, building on more than 65,000 claims already processed toward an estimated 92 million dollars in settlements | Marklo, Siena, Rein Security, Peppermint | |
| 2026-10-16 | Salience Labs | 125 million dollar oversubscribed Series B led by Bullhound Capital, as the Oxford-spun-out photonics company wins new backing from AMD Ventures and Intel Capital for all-optical circuit switches meant to break the power and latency ceiling facing electronic switches as AI GPU clusters scale toward tens of thousands of chips | Navra, Type One Energy, Oratomic, Gallatin AI | |
| 2026-10-15 | Soufflé Therapeutics | 135 million dollar Series B led by Juvia Group, as the MIT bioengineer Robert Langer-founded biotech works to deliver RNA medicines to muscle and heart tissue, a problem that has stalled the entire siRNA drug class, backed by more than 3.5 billion dollars in big pharma partnerships before any program has reached the clinic | ICON, Pluto Security, Nous Research, Atomic Machines | |
| 2026-10-14 | Vitalize | 31 million dollar Series A led by Oak HC and FT, as the Y Combinator-backed startup unifying hospital staffing, scheduling, patient flow and capacity management expands after enterprise customers reported cutting manual scheduling work and premium labor spend | Gallatin AI, byteXL, Desible.ai, Credfix | |
| 2026-10-13 | Universal Quantum | 100 million dollar Series A co-led by DCVC and Firgun Ventures, a record raise for a UK quantum computing company, as the University of Sussex spinout races to prove its modular trapped-ion chiplet interconnect can out-scale newly public rivals Quantinuum and IonQ | Atlas Atomics, Type One Energy, Sabi, Catalyst | |
| 2026-10-12 | Manus | 500 million dollar funding round led by Boyu Capital and IDG Capital, the general AI agent's first raise since China blocked Meta's 2 billion dollar bid for the company and barred its founders from leaving the country, as Manus pursues a reported 4 billion dollar valuation on roughly 125 million dollars of annualized revenue | Oratomic, Matchpoint Therapeutics, Oxide Computer, Stuut | |
| 2026-10-11 | Arena | 200 million dollar Series B co-led by Lightspeed Venture Partners and Khosla Ventures at a 3.1 billion dollar valuation, as the company behind the Chatbot Arena leaderboard nearly doubles its valuation in ten months on roughly 100 million dollars of annualized revenue from selling AI evaluation and alignment benchmarking to labs and enterprises, while Scale AI's new Seal Showdown contests its neutral-referee position | Gallatin AI, Rein Security, Rivercell, TeddyHoldings.AI | |
| 2026-10-10 | Multiply Labs | 75 million dollar Series B led by Patrick Soon-Shiong's NantWorks with new investors AstraZeneca, Lingotto, Teradyne and Strange Ventures, as the decade-old biologics-manufacturing robotics company passes 100 million dollars raised on the strength of its first commercial sale, an up to 85 million dollar deal with Retro Biosciences, while competing against well-funded rivals Cellares and Ori Biotech to automate cell and gene therapy production | Zomint, Parakeet Health, OuterSignal, Efficient Computer | |
| 2026-10-09 | RougeTx | 58 million dollar Series A led by BioGeneration Ventures and Angelini Ventures with the European Investment Bank's Aurea facility and Kurma Partners also investing, as the Leiden University Medical Center spinout launches the first disease-modifying candidate for hereditary hemorrhagic telangiectasia, a bleeding disorder with no approved therapies, built on more than two decades of pericyte research | GMI Cloud, Varda Space Industries, doxx.net, Beyond Appliances | |
| 2026-10-08 | General Medicine | 120 million dollar Series B led by Andreessen Horowitz with Eli Lilly and Mercy Health joining, as the PillPack founders' online healthcare marketplace brings total funding to 152 million dollars less than three years after launch on hundreds of thousands of customers and an 80 Net Promoter Score | Noah, Nous Research, Buntar Aerospace, Monid | |
| 2026-10-07 | Vinci | 250 million dollar Series B at a 1.5 billion dollar valuation co-led by Advent, Temasek and Xora Innovation, as the Palo Alto physics foundation model startup jumps from a 46 million dollar seed and Series A disclosed last December to a tenfold valuation leap less than a year later, aiming its technology at chip design incumbents Cadence and Synopsys | Spiko, Hadrian, WhiteLab Genomics, Inbolt | |
| 2026-10-06 | Pandektes | 13.5 million euro Series A led by Munich's Alstin Capital, as the Copenhagen legal-research startup grows revenue sixfold and wins customers switching off LexisNexis, Westlaw, Beck and Karnov with an API-first legal data platform | OneByZero, Fleuret AI, Laki Power, RobCo | |
| 2026-10-05 | PaleBlueDot AI | 200 million dollar Series C at a 3.2 billion dollar valuation led by ComputeCore, as the Palo Alto AI compute platform nearly triples its valuation in under nine months on more than 5 billion dollars of signed customer contracts | Simple Energy, Elio Mortgage, Menos AI, SedMed | |
| 2026-10-04 | Flow Engineering | 50 million dollar Series B at a 750 million dollar valuation co-led by Valor Equity Partners and Atreides Management, as the AI-native systems-engineering platform for hardware teams grows to over 100 million requirements managed and adds General Motors, Anduril and Intuitive Machines as customers less than a year after its Series A | Miter, Kanu AI, Beltic, Satlyt | |
| 2026-10-03 | EliseAI | 350 million dollar round at a 4 billion dollar valuation led by Andreessen Horowitz and Bessemer Venture Partners, as the housing and healthcare conversational AI company nearly doubles its valuation in thirteen months on 200 million dollars of ARR and five straight years of 100 percent revenue growth | Kahua, Breye Therapeutics, Amara, Kuro | |
| 2026-10-02 | Armadin | 255.5 million dollar Series B co-led by Andreessen Horowitz and Accel at a 2.5 billion dollar valuation, as Mandiant founder Kevin Mandia's agentic attacker-swarm security platform runs live attack campaigns for Fortune 500 and government customers seven months after stealth | Foundational, Seeds Fincap, Numeral, Chamelio | |
| 2026-10-01 | General Intuition | 220 million dollar Series B at a 6.2 billion dollar valuation, nearly tripling in three months, as the AI foundation model startup trains action models on billions of gameplay clips from its own sister company Medal | Varda, Jeeves, Sand.ai, Arivihan | |
| 2026-09-30 | Tiny Health | Oversubscribed $33M Series B led by B Capital as the at-home microbiome testing company posts 1,624% three-year revenue growth and quadruples its practitioner-facing business | Modulate, erad, Baselayer, Ande | |
| 2026-09-29 | Instinct | $1B Series C led by Sequoia, Benchmark and Coatue at a $10B valuation, a roughly 4x jump in five weeks, as its text-message AI agent passes 100,000 users with 10% daily compounding growth | SiMa.ai, Quartermaster, Outmarket AI, Humanos | |
| 2026-09-28 | Solcoa Industries | $75M seed ($45M equity led by Bain Capital Ventures plus $30M JPMorgan-anchored debt) to build a 500-tonne Nevada plant using a novel rare-earth metalmaking process, aimed at breaking China's 95% grip on metallization | Clastix, Prevision Medicine, Spiich, Barq | |
| 2026-09-27 | Ultraviolette | $85M Series E led by Yali Capital and TDK Ventures; Bengaluru performance EV motorcycle maker plans US entry by 2027 on 4-5x revenue growth | Micro1, Kasvu Therapeutics, HIFI, Dextr AI | |
| 2026-09-26 | Island | $400M Series F led by Evolution Equity Partners at a $6.4B valuation, more than doubling its 2024 valuation as the enterprise browser expands into governing AI agents | Cyera, Confido, Heidi Health, Firecrawl | |
| 2026-09-25 | Ema | $77M Series B led by Creaegis, more than quadrupling its valuation as every existing backer doubled down and Wipro scales its AI Employees to 240,000+ workers | Ando, Kasvu Therapeutics, HIFI, Nuvah | |
| 2026-09-24 | TEKEVER | $580M Series D led by UC Investments and Baillie Gifford; Ukraine-proven AI surveillance drone maker hits $6.4B valuation on a new 400M pound UK Army contract | Enveda Biosciences, Basecamp Research, Numeral, Brahma AI | |
| 2026-09-23 | Verda | $189M oversubscribed Series B led by Emergence Capital; profitable Nordic GPU cloud crosses $1B valuation on $165M ARR | Snorkel AI, Nexstrom, MacroCycle, Demoverse | |
| 2026-09-22 | BCI-Sonics | RMB 200M (~$30M) Pre-Series A led by HSG and Yunqi Capital; non-invasive ultrasound brain-computer interface racing China's invasive BCI leaders and OpenAI-backed Merge Labs | Spott, HighLife, CellPoint, Benford | |
| 2026-09-22 | Amber Electric | €49M Series E led by Morgan Stanley's 1GT; automates 50%+ of Australia's home batteries, expanding VPP software into Europe via E.ON | Corridor, Paymob, Unit1 Studio, Drivn | |
| 2026-09-18 | TypeSafe AI | $40M seed led by DCVC; "System One" model returns typed decisions for software, not chat — built by RLHF co-inventor Diogo Almeida | Space Epoch, Facilo, Treble Technologies, DheyaTech | |
| 2026-09-17 | Exein | $270M Series C at $1.7B valuation (30x in 2 yrs); kernel-level security layer for robots, drones and autonomous machines | Anew Labs, Delos Data, CADDi, AIUC | |
| 2026-09-16 | Euclyd | €200M+ Series A; Samsung-backed (investor + manufacturer) AI inference chip built to out-efficiency Nvidia, chaired by ex-ASML CEO | Profound, Flam, ENCOS, Nutshell Therapeutics | |
| 2026-09-15 | Fortaegis | $50M oversubscribed Series A; quantum-safe security rooted in silicon, chaired by Quantinuum founder Ilyas Khan | Qupital, Tandem Health, Atomarine, UniqYou | |
| 2026-09-11 | Positron AI | $875M Series C at $5B valuation; memory-first inference chips challenging Nvidia's HBM lock-in | The Boring Company, Mach Industries, Rogo Technologies, Swish | |
| 2026-09-10 | Cognition AI | $2B+ Series E at $48B valuation; Devin autonomous coding agent nears $900M run-rate | DigitalPaani, Algomatic Dynamics, Limetax, Fundly.ai | |
| 2026-09-09 | Bluecore Energy | Floating nuclear reactor barges for ports; $50M seed just 2 months after stealth launch | QNu Labs, ARC Ride, Circolife, Hope Care | |
| 2026-09-08 | Pixxel | $100M Series C, India's largest spacetech round; building orbital AI data centers | Nua, Navana.ai, GalaxEye, Atoms (Kalanick) | |
| 2026-09-07 | Medulance | GPS-dispatched ambulance network raises ₹24 Cr Series A-2 | Comet, Mokobara, Kit (Speakeasy), XDOF |
Sources
- GlobeNewswire — Tiny Health Raises $33M Series B to Establish Microbiome Intelligence as the Standard of Care
- MedCity News — Tiny Health Secures $33M to Expand Microbiome Testing
- Femtech Insider — Tiny Health Raises $33M to Scale Microbiome Intelligence Across the Lifespan
- Pulse2 — Tiny Health Raises $33 Million Series B To Expand Microbiome Intelligence Platform
- FinSMEs — Tiny Health Raises $33M in Series B Funding
- TechCrunch — Modulate raises $25M for its voice models and analysis suite
- Fintech.global — erad secures $22m Series A to power GCC SME financing
- Finextra — Baselayer raises $35 million; rolls out agentic identity suite
- PR Newswire — Ande Raises $52M Seed and Series A to Launch The First Entertainment Operating System for Enterprises
Compiled from search results: article pages were unreachable from the publishing environment on this date, so every fact here was cross-checked against at least two independent reports.