Best HealthTech Companies in Redwood City, United States
The 81 best HealthTech companies in Redwood City, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: HeartFlow.
Our analysis of 305 HealthTech companies
$32.1b in tracked funding; 95% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best HealthTech companies in Redwood City
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | HeartFlow 🦄 Provides cardiovascular diagnostic support using analytics 87AI top 15%Funding top 18%News top 23%Patents top 25% All 13 signals ▾AItop 15% Fundingtop 18% Newstop 23% Patentstop 25% Growthtop 27% Markettop 30% Moattop 30% Techtop 32% Innovationtop 35% Fin. healthtop 45% Globaltop 47% Talentbottom 49% Partnersbottom 35% AI: Holds AI/ML patents (G06N-family CPC) Funding: Raised $838M across 13 rounds · 13 rounds over 17 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 87/100 | $838M | 14 mo ago | 363 363 → 841 (+132%) | John Farquhar President and Chief Executive Officer | WordPress Block EditorElementorWordPress+37 | Top 5M | 1,118 patents Non-invasive coronary CT imaging analysis and AI-driven hemodynamic assessment. | — |
| 2 | Proteus Digital Health 🦄 Provider of cloud-based patient medication adherence monitoring system for the healthcare providers | $532M | 92 mo ago | 261 | Soma Bhadra CEO | — | — | 770 patents Ingestible sensors and wearables for drug adherence and physiological monitoring | — |
| 3 | Exo Developer of point of care ultrasound ecosystem with AI-powered diagnostic and workflow tools 72Funding top 15%Talent top 28%AI top 30%Tech top 31% All 10 signals ▾Fundingtop 15% Talenttop 28% AItop 30% Techtop 31% Moattop 31% Growthtop 45% Markettop 46% Innovationbottom 43% Patentsbottom 42% Globalbottom 39% Funding: Raised $346M across 10 rounds · 10 rounds over 7 yrs (1.4/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 72/100 | $346M | 12 mo ago | 152 152 → 185 (+22%) | Sandeep Akkaraju CEO/Founder | ContentfulApple iCloud MailNode.js+30 | Top 10M | 6 patents Utility pole repair, reinforcement, and load‑transfer hardware for infrastructure maintenance | — |
| 4 | Karius Provider of diagnostics for identifying infectious diseases using microbial DNA | $315M | 25 mo ago | 139 139 → 212 (+53%) | Tim Blauwkamp Chief Scientific Officer | Cart FunctionalitySanitySentry+33 | Top 10M | 133 patents Rapid microbial DNA sequencing library prep and pathogen detection from clinical samples | — |
| 5 | Pulmonx Developer of smart devices for treating pulmonary diseases | $281M | 73 mo ago | 198 198 → 276 (+39%) | — | WordPressMySQLPHP+44 | Top 5M | 313 patents Bronchoscopic devices and methods for lung diagnostics, imaging analysis, and volume reduction therapies | — |
| 6 | Suki Developer of an AI assistant for clinical documentation and reasoning 80AI top 18%Funding top 19%Innovation top 20%Patents top 24% All 14 signals ▾AItop 18% Fundingtop 19% Innovationtop 20% Patentstop 24% Techtop 28% Moattop 28% Producttop 29% Growthtop 36% Newstop 39% Talenttop 41% Partnerstop 45% Marketbottom 49% Globalbottom 42% Customersbottom 10% AI: Classified as an AI company · Holds AI/ML patents (G06N-family CPC) Funding: Raised $165M across 5 rounds · 5 rounds over 9 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 80/100 | $165M | 16 mo ago | 45 | Punit Soni Co-Founder & CEO | WordPressMySQLPHP+20 | Top 5M | 62 patents AI-powered speech-to-text and contextual note generation for clinical documentation workflows. | 3 partnerships |
| 7 | Goqii Provider of a wearable wristband integrated with personalized coaching | $110M | 50 mo ago | 65 | Sachin Janghel Co-Founder & CTO | Apple iCloud MailGoogle WorkspacePHP+24 | Top 5M | — | — |
| 8 | Q Bio Provider of clinical data management and analytics platform | $80M | 26 mo ago | 50 | Michael Snyder Co-Founder | — | — | — | — |
| 9 | Neurotrack Provider of clinical assessment tool to diagnose neurological disorders | $58M | 43 mo ago | 44 | Elli Kaplan Co-founder and CEO | HubSpot CMS HubApple iCloud MailGoogle Workspace+22 | Top 10M | — | — |
| 10 | Athos Internet first brand offering smart fabric for men and women | $51M | 127 mo ago | 33 | Don Faul CEO | — | — | — | — |
| 11 | Limelight Health Quote engine solution for health insurance professionals | $44M | 89 mo ago | 5 | — | — | — | — | — |
| 12 | Cervel Non-invasive neuromodulation through transcranial magnetic stimulation to treat treatment resistant depression | $24M | 138 mo ago | 11 | — | — | — | — | — |
| 13 | Superconductive Health Provider of AI-based platform for clinical data management | $21M | 60 mo ago | 11 | Abe Gong Co-Founder & CEO | — | — | — | — |
| 14 | Ingenuity Systems Bioinformatics software and knowledge bases for research and clinical insights | $20M | 191 mo ago | 30 | — | — | — | — | — |
| 15 | Betteromics Online platform for the analysis of omics clinical data | $20M | 31 mo ago | 45 | — | — | — | 2 patents Integrated multi‑omics tumor profiling for precision oncology diagnostics | — |
| 16 | Ciitizen Online platform to store personal health data | $20M | 89 mo ago | 389 | Anil Sethi Co-Founder & CEO | — | — | 12 patents Aggregating and analyzing health records using multimodal NLP and visual clustering | — |
| 17 | BaseHealth Personalized health management platform driven by genomics | $18M | 107 mo ago | 8 | — | — | — | 10 patents AI-driven health data analytics for risk adjustment and population health management | — |
| 18 | X2 Biosystems Concussion management solution | $16M | 134 mo ago | 19 | — | — | — | 294 patents Patents concentrated in computing, sensing & instrumentation | — |
| 19 | Naked Labs Manufacturer of body scanners for tracking the fitness | $15M | 94 mo ago | 19 | — | — | — | — | — |
| 20 | Solace Health 🦄 Provider of patient centered healthcare platform 64Funding top 24%Tech top 26%Growth top 28%Moat top 31% All 7 signals ▾Fundingtop 24% Techtop 26% Growthtop 28% Moattop 31% Talenttop 38% Marketbottom 38% Globalbottom 37% Funding: Raised $14.0M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) Tech: 49 technologies across 5/8 capability areas · Cloud: Cloudflare, Heroku rank vs industry peers · Fliar Intelligence Index 64/100 | $14M | 4 mo ago | 1 | Sara Sargent Co-Founder | ContentfulSentryZendesk+25 | Top 500k | — | 5 job openings · 1 partnership |
| 21 | Edgedynamics Demand management software | $12M | 246 mo ago | — | Henry Olson Co-founder | — | — | — | — |
| 22 | Striiv Smart bands for tracking cardiac health and fitness activties | $11M | 177 mo ago | 17 | — | — | — | 33 patents Wearable sensor fusion for health monitoring, medication compliance, and secure authentication | — |
| 23 | Bina Technologies Provider of a big data platform for management of next-generation sequencing (NGS) data | $10M | 154 mo ago | 15 | — | — | — | — | — |
| 24 | Klarity Health Provider of software development solutions for the healthcare industry | $10M | 34 mo ago | 56 | Lillian M Co-Founder | Apple iCloud MailGoogle WorkspaceRuby+18 | Top 1M | — | — |
| 25 | Meta Provider of biomedical research discovery tools for papers, biomedical science research material and content | $10M | 127 mo ago | 35 | — | — | — | 109 patents AR/VR immersive interaction, hand tracking, and spatial audio display technologies | — |
| 26 | MedExpert Provider of medical information software for doctors and patients | $9M | 167 mo ago | 63 | — | WordPressMySQLPHP+16 | Top 10M | — | — |
| 27 | Breakthrough Online mental health therapy marketplace | $6M | 155 mo ago | 258 | — | — | — | 7 patents Hydrogen and sulfur production, vapor condensation, and banana supply‑chain integration technologies. | — |
| 28 | Neurotone Provider of AI-powered auditory training software for improving hearing comprehension | $5M | 5 mo ago | — | Miles Aron Co-Founder & COO | WebflowVimeoMicrosoft Advertising+17 | Top 5M | 6 patents Personalized auditory training and secure telerehabilitation platforms for hearing impairment | — |
| 29 | Siris Medical AI-based treatment decision support system for radiation therapy | $4M | 105 mo ago | 6 | — | — | — | — | — |
| 30 | Healbe Smart bands for comprehensive health tracking and lifestyle improvement | $3M | 97 mo ago | 50 | Georgy Mikaberydze Co-Founder | WordPress Block EditorWordPressMySQL+24 | Top 5M | 52 patents Patents concentrated in computing, sensing & instrumentation | — |
| 31 | Medcorder Provider of personalised health records for the patients | $2M | 85 mo ago | 6 | David Weekly CEO | WebflowYouTubeStripe+10 | Top 50M | — | — |
| 32 | Zeit AI-based neurological diagnosis and treatment tool for healthcare professionals | $2M | 55 mo ago | 8 | Urs Naber Co-Founder | Webflowparticles.jscore-js+12 | Top 50M | — | — |
| 33 | Clint Provider of a clinical intelligence platform to accelerate therapeutic development | $2M | 115 mo ago | 19 | Sushant Shankar Co-Founder & CEO | WordPressApple iCloud MailGoogle Workspace+15 | Top 50M | — | — |
| 34 | Attainia Cloud-based software solutions optimizing manufacturing value chain, medical equipment planning, and capital… | $2M | 217 mo ago | 55 | — | — | — | 2 patents AI-powered contextual messaging platforms for decision-support applications | — |
| 35 | Tueo Health Digital asthma management tool providing personalized care and support for families | $2M | 107 mo ago | 3 | — | — | — | — | — |
| 36 | Welltory Online health and wellness tracking and training platform 62Customers top 13%Growth top 28%Tech top 37%Funding top 48% All 10 signals ▾Customerstop 13% Growthtop 28% Techtop 37% Fundingtop 48% Moattop 48% Talentbottom 49% Marketbottom 48% Productbottom 40% Globalbottom 38% Newsbottom 18% Customers: Play-Store rating 4.60★ across 58,346 ratings (1 apps) · Review volume +23% in 6 mo Growth: Web rank 5,000,000 → 1,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 62/100 | $1M | 7 mo ago | 76 | Jane Smorodnikova Co-Founder & CEO | SentryNode.jsAmazon Web Services+15 | Top 1M | — | — |
| 37 | REMspace Provider of technologies for lucid dreaming and virtual reality control | $1M | 23 mo ago | — | Michael Raduga Founder & CEO | WordPressMySQLPHP+19 | Top 5M | — | — |
| 38 | Gliimpse Aggregate fragmented data into Medicare mandated patient summaries. | $1M | 149 mo ago | 11 | — | — | — | — | — |
| 39 | Zamzee Provider of a gamified program to increase kid's physical activity | $1M | 187 mo ago | 13 | Lance Henderson ex-CEO | — | — | — | — |
| 40 | Confer Software Web-based software applications for medical management and process management. | $1M | 317 mo ago | — | Yag Patel CEO | — | — | — | — |
| 41 | Lab Sensor Solutions Direct web slots, PG SLOT, no minimum, genuine API, no agents | $425K | 124 mo ago | 3 | — | WordPressMySQLPHP+9 | Top 50M | — | — |
| 42 | Phraze Provider of data documentation solution for healthcare professionals | $120K | 84 mo ago | 5 | Brandon Mccutcheon Co-Founder & CEO | — | — | — | — |
| 43 | 7 Cups Provider of counseling and consultation services for mental health | $120K | 154 mo ago | 547 | Glen Moriarty Founder | SentryNode.jsBootstrap+17 | Top 500k | 7 patents Leak‑proof disposable container lids and multi‑wall packaging for liquids | — |
| 44 | AIBody Provider of learning platform for healthcare professionals | $100K | 12 mo ago | 15 | Richard Littlehales CEO | WordPressMySQLPHP+18 | Top 10M | — | — |
Top 12 HealthTech companies in Redwood City
#1
Public · Redwood City, California · founded 2007 · 363 employees$837.7Mraised▾
HeartFlow provides cardiovascular diagnostic support using analytics. The company's technology uses CT scans and high-performance computing to provide physicians with data about blood flow within the coronary arteries. The company claims that the HeartFlow technology analysis led to the improvement in diagnostic accuracy as compared to a standard CT scan.
- Mar 2025Series F$98.4M
- Mar 2023Series F$215.9M
- Jun 2019Series E$65M
- Feb 2018Series E$240M
#2
Series C · Redwood City, California · founded 2015 · 152 employees$346Mraised▾
Developer of point of care ultrasound ecosystem with AI-powered diagnostic and workflow tools. It provides handheld ultrasound devices that replaces carts and probes designed for medical imaging at the point of care. It offers technology that automates image capture and quantification. The ecosystem includes workflow software designed around the user.
- May 2025Series C$43.9M
- Jan 2025Conventional Debt$8.8M
- Jul 2024Conventional Debt$20.7M
- Jul 2021Series C$220M
#3
Series C · Redwood City, California · founded 2022 · 1 employees$14Mraised▾
Provider of patient centered healthcare platform. It connects patients with professional health advocates, providing personalized navigation and support to empower patients and improve healthcare outcomes.
- Feb 2026Series C$130M
- Apr 2025Series B$60M
- Aug 2024Series A$14M
#4
Series D · Redwood City, California · founded 2017 · 45 employees$165Mraised▾
Developer of an AI assistant for clinical documentation and reasoning. The AI solution captures patient conversations to generate notes, instructions, and orders. It adapts to clinician workflows, streamlining documentation across care settings. The platform integrates with major EHRs and health technology applications. It offers capabilities spanning pre-charting, documentation, and clinical decision support.
- Jan 2025Series D—
- Oct 2024Series D$70M
- Dec 2021Series C$55M
- Mar 2020Series B$20M
#5
Seed · Redwood City, California · founded 2024$4.9Mraised▾
Provider of AI-powered auditory training software for improving hearing comprehension. The company offers a platform that utilizes auditory training exercises to help patients improve their listening and communication skills, with or without hearing devices. The software provides personalized training exercises that target specific auditory skills and adapts to the user’s performance. The company's platform is designed to improve patient outcomes and reduce hearing aid returns for hearing care practices.
- Jan 2026Seed$651.7K
- Feb 2025Seed$1.7M
- Apr 2024Seed$2.5M
#6
Series C · Redwood City, California · founded 2014 · 139 employees$315Mraised▾
Provider of diagnostics for identifying infectious diseases using microbial DNA. It offers Karius Test that uses clinical metagenomics specifically microbial cell-free DNA, or mcfDNA plus AI and sequencing to detect pathogens such as bacteria, fungi, viruses, parasites in the body from non-invasive samples.
- May 2024Series C$100M
- Feb 2020Series B$165M
- Nov 2018Conventional Debt$25M
- Aug 2017Series A$50M
#7
Seed · Redwood City, California · founded 2016 · 76 employees$1Mraised▾
Online health and wellness tracking and training platform. The company offers an online health and wellness tracking and training program. It uses AI technology to measure stress and energy levels. Also, it offers health recommendations for healthy lifestyle management, stress level management, physical activity programs, and others. Users can track how lifestyle choices affect their heart rate variability (HRV), stress levels, and energy reserves through the app's analytics.
- Nov 2025Conventional Debt$2M
- Sep 2024Conventional Debt$3M
- Jun 2017Seed$1M
#8
Series B · Redwood City, California · founded 2015 · 50 employees$80Mraised▾
Q Bio is a stealth mode startup that is working on developing solutions for clinical data management and analytics. The company is working on a solution that will provide insights regarding physiology by using data analytics over the diagnostic data collected from different sources. The company examined the biomarkers for different clinically relevant, genetic, chemical, and anatomical data.
- Mar 2024Series B$27.1M
- Apr 2021Series B—
- Feb 2020Series B$40M
- Nov 2016Seed—
#9
Series H · Redwood City, California · founded 2001 · 261 employees$532Mraised▾
Provider of cloud-based patient medication adherence monitoring system for the healthcare providers. The SaaS-based platform includes an ingestible sensor that gets activated on contact with stomach acid after ingestion and sends a signal to determine the identity and timing of ingestion to an adhesive patch stuck in the left upper quadrant of the abdomen.
- Oct 2018Series H$88M
- Apr 2016Series H$50M
- Mar 2016Series H$40M
- Jul 2014Series G$52M
#10
Public · Redwood City, California · founded 1998 · 198 employees$280.9Mraised▾
Pulmonx is a developer of smart devices for treating pulmonary diseases. The company is focused on developing and marketing minimally-invasive medical devices and technologies for the diagnosis and treatment of pulmonary disorders. It is currently engaged in the design, development, and manufacture of products that will improve the effectiveness and benefits of endoscopic lung volume reduction (ELVR) for patients with severe emphysema. The company's Zephyr Endobronchial Valve (EBV) therapy involves placing small one-way valves in the lung to prevent air from entering the most diseased regions while allowing fluids and trapped air to escape. The company has a CE Mark for the Zephyr Endobronchial Valves and has submitted a CE mark application for the Chartis System.
- May 2020Series D$66M
- May 2020Conventional Debt$17M
- Apr 2019Series D$65.1M
- Mar 2017Series D$50M
#11
Series C · Redwood City, California · founded 2014 · 65 employees$109.7Mraised▾
Provider of a wearable wristband integrated with personalized coaching. It enables users to monitor body temperature, record and track heart rate and PPG, check for atrial fibrillation, monitor blood pressure, and enables users to track real-time activity routes, distance, pace, calories, and more. It also offers an app that is compatible with iOS and Android devices for interacting with a personal coach, experts, and a doctor that allows users to meet health targets. It is available in a subscription-based pricing model.
- Mar 2022Series C$10M
- Feb 2022Venture Debt—
- Feb 2022Series C$50M
- Sep 2019Series C$6.3M
#12
Series C · Redwood City, California · founded 2012 · 44 employees$57.8Mraised▾
Neurotrack provides a clinical assessment tool to diagnose neurological disorders. It uses proprietary Imprint Memory Assessment, developed with computer vision algorithm and eye-tracking technology for an analyzing behavioral biomarker in a cognitive/visual test. The company works with pharma companies and researchers to recruit candidates for clinical trials and to help measure drug efficacy and helping in drug development.
- Nov 2022Series C$10M
- Jun 2019Series C$21.1M
- Apr 2019Grant (prize money)$3.3M
- Apr 2019Grant (prize money)$3.3M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of HealthTech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Digital Health is moving in the United States
A read on the academic research around Digital Health — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 8,843 United States-affiliated papers.
- Design Intelligence421
- Harvard University383
- Johns Hopkins University295
- University of North Carolina at Chapel Hill206
- University of Washington173
- Health care9→240
- Wearable computer6→129
- Health informatics25→140
- Remote patient monitoring11→76
- Informatics10→60
- Health care36→766
- Health informatics113→495
- Psychological intervention20→320
- Public health34→290
- Intervention (counseling)5→193
- Health care98→1170
- Health informatics213→712
- Public health73→525
- Psychological intervention26→368
- Health administration110→363
Where digital health is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing medical devices patents in the United States
United States medical devices patent filing is accelerating — 666,693 filings from 8,000 assignees (2016–2025), led by Covidien, Boston Scient Scimed, Medtronic; annual filings 63466→63610.
- Covidien29348
- Boston Scient Scimed24762
- Medtronic22394
- Becton Dickinson18249
- Procter & Gamble16178
- Ethicon ENDO Surgery13723
- Kimberly Clark12440
- Ethicon11761
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.