Best Online Health Information Companies in California, United States
The 181 best Online Health Information companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Ginger.
Ranked: Best Online Health Information companies in California
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ginger 🦄 On demand mental health solutions for individuals and organizations | $220M | 62 mo ago | 176 | 2011 | Andy Puddicombe Co-Founder | — | 57 patents AI-driven mental health modeling and secure digital health data encryption platforms. | — |
| 2 | Healthline Provider of online health information pltaform | $154M | 125 mo ago | 300 | 1999 | James Norman Founder | Top 5k | — | — |
| 3 | AllStripes Provider of information to patients and communities with the medical data for rare diseases | $67M | 57 mo ago | 85 | 2017 | — | — | — | — |
| 4 | Zeebo Demystifying tech: Reviews, networking, security, and practical advice for everyone | $60M | 177 mo ago | 1 | 2007 | — | — | — | — |
| 5 | AccessHope Provider of cancer care, support, and expertise for employees | $33M | 25 mo ago | 152 | 2019 | Brad Kreick CEO | Top 10M | — | 1 award |
| 6 | MyHealthTeam Mobile-based social application for multiple health conditions | $27M | 82 mo ago | 105 | 2011 | Eric Peacock Co-Founder & CEO | Top 5M | — | — |
| 7 | Circles Online platform providing patient support groups | $24M | 48 mo ago | 50 | 2019 | Irad Eichler Co-Founder & CEO | Top 5M | — | — |
| 8 | The Mighty Online social platform for people suffering from disabilities | $23M | 80 mo ago | 26 | 2014 | — | Top 500k | 21 patents Quick‑release vacuum connectors and portable suction devices for fluid handling systems | — |
| 9 | Lucid Lane Provider of an online health information platform to manage psychological health | $20M | 58 mo ago | 71 | 2017 | Ahmed Zaafran Co-Founder & CMO | — | — | — |
| 10 | Pace Provider of an online teleconsultation and social network platform for mental health | $20M | 54 mo ago | 215 | 2020 | — | — | — | — |
| 11 | Maximus Online platform providing content on men's health | $15M | 46 mo ago | 34 | 2020 | Rand McClain Founder | Top 1M | 31 patents Secure mobile credentialing and health data exchange platforms for clinical workflows | — |
| 12 | BabyCenter Pregnancy and parenting information website with community, tools, and expert advice | $14M | 328 mo ago | 208 | 1997 | — | Top 50k | — | — |
| 13 | MedExpert Provider of medical information software for doctors and patients | $9M | 167 mo ago | 63 | 1998 | — | Top 10M | — | — |
| 14 | OneHealth Social platform for those in recovery and rehabilitation programs | $9M | 158 mo ago | 47 | 2008 | — | — | — | — |
| 15 | Oath Care Provider of a professional network for healthcare providers and pregnancy & pediatrics monitoring platform | $8M | 52 mo ago | 14 | 2019 | Camilla Hermann's Co-Founder & CEO | — | — | — |
| 16 | Flourish Labs Provider of peer support platform for mental health individuals | $6M | 47 mo ago | 9 | 2021 | Kim Newell Green Md Faap Chief Medical Officer | Top 50M | — | — |
| 17 | Manta Cares Provider of digital tools and support for cancer patients and caregivers. | $5M | 7 mo ago | — | 2022 | Samira Daswani Founder | Top 5M | — | 1 launch |
| 18 | Med Answers Connecting patients with experts for personalized healthcare solutions and clinical trials | $5M | 82 mo ago | 21 | 2004 | — | — | — | — |
| 19 | DailyStrength Online support groups and forums for mental health and personal challenges | $5M | 229 mo ago | 2,071 | 2006 | Lars Nilsen Co-Founder | Top 1M | — | — |
| 20 | MentalHealth.com Online platform providing mental health information and support | $4M | — | — | 1995 | Daniel Rivette Co-Founder | Top 500k | — | — |
| 21 | Kensho Provider of online information platform for personalized recommendations | $4M | 58 mo ago | 11 | 2017 | Erin Pikus Co-Founder | — | 7 patents Financial data mining and analytics platforms for predictive modeling and domain-specific search | — |
| 22 | Lully Product to stop night terrors in kids | $3M | 132 mo ago | 10 | 2014 | — | — | — | — |
| 23 | MiResource Provider of customized mental health treatment solutions and information | $3M | 17 mo ago | 21 | 2017 | Mackenzie Drazan Co-Founder & CEO | Top 5M | — | — |
| 24 | LOOM Online health information platform on sexual well being | $3M | 70 mo ago | 17 | 2020 | Erica Chidi Co-Founder & CEO | — | 17 patents Real-time video capture, editing, and web-based video processing tools | — |
| 25 | Coral Online platform offering exercises and information on sexual health | $3M | 79 mo ago | 25 | 2018 | Isharna Walsh CEO and Founder | Top 10M | 43 patents Automated precision nail polish application and curing systems for manicuring | — |
| 26 | Nintee Provider of social platform for various health conditions | $3M | 38 mo ago | 7 | 2022 | — | — | — | — |
| 27 | KoKo Social networking platform for mental health-related issues | $3M | 51 mo ago | 10 | 2015 | Rob Morris Co-Founder | Top 10M | 5 patents Pulmonary function testing devices, calibration tools, and telemetric health monitoring systems | 1 partnership |
| 28 | Iodine Information platform for healthcare products and conditions | $2M | 147 mo ago | 714 | 2013 | — | — | 2 patents Personalized, demographic‑filtered user interfaces for medication information delivery | — |
| 29 | First Mile Care Online community for chronic care | $2M | 92 mo ago | 26 | 2017 | Karl Ronn CEO | — | — | — |
| 30 | MentalHappy Developer of software for managing virtual and in-person support groups | $2M | 22 mo ago | 1 | 2016 | — | Top 10M | — | — |
| 31 | Ginko Provider of a digital parenting co-pilot app offering expert support. | $2M | 13 mo ago | — | 2024 | Raghu Appasani Co-Founder & CMO | — | 7 patents Permission-based contact directory and data sharing platform for enterprise communication | — |
| 32 | UnitedWeCare AI based platform offering mental healthcare solutions | $2M | 25 mo ago | 36 | 2020 | Sourav Banerjee Co-Founder & CTO | Top 5M | — | — |
| 33 | Mavida Digital mental healthcare platform providing personalized maternal mental health support | $2M | 33 mo ago | — | 2022 | Emma Sugerman Co-Founder & COO | — | — | 1 job opening |
| 34 | ShareWell Online community-based social networking platform for mental health management | $1M | 40 mo ago | 6 | 2019 | — | Top 5M | — | — |
| 35 | Peer Medical Online platform providing medical information on cancer | $1M | 69 mo ago | 3 | 2005 | Ed Spiegel Founder | — | — | — |
| 36 | iChange Online support groups to reach health & wellness goals | $1M | 187 mo ago | — | 2006 | Rich Rygg Founder & CEO | — | — | — |
| 37 | REMspace Provider of technologies for lucid dreaming and virtual reality control | $1M | 23 mo ago | — | 2007 | Michael Raduga Founder & CEO | Top 5M | — | — |
| 38 | Determined Health Digital platform focused on addressing social isolation and other critical social determinants of health and… | $817K | 52 mo ago | 4 | 2021 | Katherine Steinberg Co-Founder | — | — | — |
| 39 | O.school Provider of online resources for sex education | $800K | 101 mo ago | 15 | 2016 | Andrea Barrica Founder | Top 5M | — | — |
| 40 | AccessDNA Online social platform for health and wellness experts | $667K | 201 mo ago | — | 2008 | Lee Essner Founder | — | — | — |
| 41 | The Blue Box Smart device and companion app for monitoring breast cancer | $543K | 11 mo ago | — | 2020 | Judit Benet Co-Founder & CEO | — | 30 patents Self‑cleaning HVAC coil and filter technologies for automated heat‑exchange maintenance | 2 awards |
| 42 | AltaVitas Provides pediatricians with secure, contemporary information to improve the health and well-being of children. | $388K | 172 mo ago | — | 2011 | Fred Seddiqui CEO | — | — | — |
| 43 | FoundHealth Integrative health platform empowering personalized solutions through diverse healing sciences | $225K | 166 mo ago | — | 2009 | Rita Sharma Co-Founder & CEO | — | — | — |
| 44 | Ootify AI-powered mental health platform providing personalized, evidence-based care | $215K | 97 mo ago | 25 | 2017 | Ravi Sharma Co-Founder & CEO | — | — | — |
| 45 | Eyes On Eyecare Digital platform providing resources for optometrists and ophthalmologists | $200K | 134 mo ago | 38 38 → 84 (+121%) | 2014 | Preeya Gupta Co-Founder | Top 5M | — | 1 launch |
| 46 | Ankr Provider of AI-based cancer symptoms monitoring solutions for patients | $125K | 50 mo ago | 25 25 → 15 (-40%) | 2022 | Shivani Rao Co-Founder | Top 50M | — | — |
| 47 | Nutrigene Manufactures consumer device to dispense vitamin drink from pods | $120K | 100 mo ago | 2 | 2016 | — | — | — | — |
| 48 | Qonscious Health Provider of programs addressing emotional and lifestyle factors impacting chronic conditions | $100K | 10 mo ago | — | 2025 | Jarik Conrad Founder | — | — | — |
| 49 | Trill Project Social platform for connecting with people anonymously | $100K | 94 mo ago | 1 | 2018 | — | — | — | — |
Top 12 Online Health Information companies in California
#1
Seed · San Francisco, California · founded 2022$5.4Mraised▾
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- Nov 2025Seed$5.4M
#2
Seed · Woodside, California · founded 2017 · 21 employees$3Mraised▾
Provider of customized mental health treatment solutions and information. The platform provides talk therapy and counseling sessions for individuals and care coordinators with mental health issues. Also, information on different mental health problems is also available.
- Jan 2025Grant (prize money)$1.1M
- Aug 2021Seed$3M
- Apr 2021Grant (prize money)$1.1M
- Aug 2020Grant (prize money)$1.2M
#3
Seed · San Francisco, California · founded 2024$1.5Mraised▾
Provider of a digital parenting co-pilot app offering expert support. The app supports families from a child's first tablet to their first social media account. It uses AI to detect patterns in children's digital behavior without invasive surveillance, fostering trust and open communication. The solution aims to build healthy digital habits in children with input from kids.
- May 2025Seed$1.5M
#4
Seed · Irvine, California · founded 2020$542.7Kraised▾
Smart device and companion app for monitoring breast cancer. The company at-home testing device and app for women to self-diagnose the biomarkers associated with breast cancer.
- Jul 2025Seed$3.5M
- Jul 2024Seed$542.7K
- Jun 2022Grant (prize money)$79.8K
- Oct 2021Seed—
#5
Series B · Duarte, California · founded 2019 · 152 employees$33Mraised▾
Provider of cancer care, support, and expertise for employees. It bridge the knowledge gap in the field of cancer research and provide access to the content and community support for employees.
- Apr 2024Series B$33M
#6
Ginger 🦄Series E · San Francisco, California · founded 2011 · 176 employees$220Mraised▾
On demand mental health solutions for individuals and organizations. It is a network of psychiatrists, therapists, and behavioral health coaches that provides mental healthcare for employees, including mental health coaching, therapy, psychiatry consultation, behavioral health advisory, self-guided care, and more. It also offers an emotional support app that provides real-time health assistants, video therapy classes, personalized classes, and more. It offers memberships to individuals.
- Mar 2021Series E$100M
- Aug 2020Series D$50M
- Aug 2019Series C$35M
- 2018Series B—
#7
Seed · San Francisco, California · founded 2016 · 1 employees$1.7Mraised▾
Developer of software for managing virtual and in-person support groups. This technology provides tools for scheduling sessions, processing payments, and tracking member engagement. The platform includes features for privacy management and communication between facilitators and participants. It supports the creation of secure digital environments for group interactions.
- Jul 2024Seed$500K
- May 2021Seed$1.1M
- Aug 2018Seed$120K
- Feb 2017Seed—
#8
Seed · Rancho Santa Fe, California · founded 2025$100Kraised▾
Provider of programs addressing emotional and lifestyle factors impacting chronic conditions. The company offers resources and guidance to address the underlying causes of health issues. It utilizes an evidence-based methodology addressing lifestyle behaviors, emotional regulation, and habit formation. The company provides programs focused on nutrition, fitness, and emotional intelligence.
- Jul 2025Seed$100K
#9
Seed · Redwood City, California · founded 2007$1Mraised▾
Provider of technologies for lucid dreaming and virtual reality control. It focuses on lucid dreaming and out-of-body experiences, providing resources such as ebooks, videos, and a mobile app to help users achieve and control these experiences.
- Jul 2024Seed$1M
#10
Acquired · San Francisco, California · founded 2017 · 85 employees$67Mraised▾
AllStripes provides information to patients and communities for medical data for rare diseases. It offers patient information like regulatory evidence for drug, medical data science, research in rare diseases, rare disease programs. It offers solutions for diseases like Wilson disease, Sanfilippo syndrome, SURF1 among others.
- Aug 2021Series B$50M
- Apr 2020Series A$14M
- Aug 2018Seed$3M
#11
Acquired · San Francisco, California · founded 1999 · 300 employees$154Mraised▾
Healthline Networks is a provider of health information and technology solutions. The platform provides different topics related to coronavirus, nutrition, parenthood, and women's wellness. The platform also contains different health topics. The portal also has the latest stories and news on COVID-19.
- Jan 2016Series D$95M
- Feb 2015Series C$12.7K
- Mar 2014Venture Debt$7.5M
- Apr 2010Series C$14M
#12
Series A · San Francisco, California · founded 2019 · 50 employees$24.5Mraised▾
Online platform providing patient support groups. The platform allows users to connect with therapists and members for weekly online professional support. Also, offers programs, guidance, and tools for developing skills are available on the mobile app.
- May 2022Series A$16.5M
- Aug 2021Seed$8M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Online Health Information coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.