Best Healthcare Companies in Waltham, United States
The 46 best Healthcare companies in Waltham, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: LumiraDx.
Ranked: Best Healthcare companies in Waltham
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | LumiraDx Cloud based diagnostics platform for point of care diagnosing | $704M | 44 mo ago | Acquired | Sumit Nagpal Co-Founder & CEO | 2014 | Apple iCloud MailMicrosoft 365Node.js+17 | 4 patents Microfluidic fluid handling and optical biosensor technologies for point‑of‑care diagnostics. | — |
| 2 | Affinia Therapeutics Develops Adeno-associated viruses(AAV) for gene therapy | $218M | 11 mo ago | Series C | Rob Aboud Co-Founder and Chief Legal Officer | 2019 | — | — | — |
| 3 | Eleanor Health Chain of addiction and mental health treatment centers 55Funding top 18%Moat top 22%Growth top 35%Talent top 45% All 8 signals ▾Fundingtop 18% Moattop 22% Growthtop 35% Talenttop 45% Techtop 46% Marketbottom 41% Newsbottom 31% Globalbottom 29% Funding: Raised $166M across 6 rounds · 6 rounds over 7 yrs (0.9/yr) Moat: Editorial + unicorn rating 8/10 · Soonicorn rank vs industry peers · Fliar Intelligence Index 55/100 | $166M | 22 mo ago | Series D | Nzinga Harrison Co-Founder & Chief Medical Officer | 2019 | WordPress Block EditorWordPressSentry+21 | — | — |
| 4 | Fresenius Medical Care Chain of renal care clinics | $147M | 28 mo ago | Public | Michael Klein CEO | 1996 | Apple iCloud MailMicrosoft 365Red Hat+15 | 2,646 patents Advanced dialysis monitoring, peritoneal fluid analysis, and integrated medical device data management. | — |
| 5 | Proteon Therapeutics Developer of cell therapies and investigational drug formulations for cancer and rare diseases | $127M | 108 mo ago | Public | — | 2001 | — | — | — |
| 6 | InterWell Health Provider of population health management services | $66M | 63 mo ago | Series B | Robert Sepucha CEO | 2019 | Apple iCloud MailMicrosoft 365Node.js+23 | — | — |
| 7 | Augmenix Provider of a hydrogel spacer for prostate cancer radiation therapy | $47M | 121 mo ago | Acquired | — | 2008 | — | — | — |
| 8 | Adnexus Discovers, develops, and distributes therapeutic class of biologics for treatment of oncology, immunology… | $42M | 228 mo ago | Acquired | — | 2002 | — | — | — |
| 9 | Interleukin Genetics Genetic tests for personalized medicineIn | $34M | 120 mo ago | Acquired | Lew Bender Co-CEO | 1997 | — | 167 patents Genetic diagnostic markers for weight, cardiovascular, osteoarthritis, and periodontal diseases | — |
| 10 | VFP Pharmacy Group Chain of pharmacies | $12M | 57 mo ago | Funding Raised | Richard Burkett Chief Executive Officer | 2019 | Cart FunctionalityWordPressMySQL+24 | — | — |
| 11 | NKT Therapeutics Website setup tutorials for domain configuration and website appearance | $12M | 144 mo ago | Series A | — | 2008 | — | — | — |
| 12 | Thermo Fisher Scientific Provider of electron microscopy services | — | 32 mo ago | Public | Srinath Venkatesh Managing Director & VP/GM- India and South Asia | 1956 | Adobe Experience ManagerApple iCloud MailJava+20 | — | — |
Top 12 Healthcare companies in Waltham
#1
Series C · Waltham, Massachusetts · founded 2019 · 64 employees$218.3Mraised▾
Develops Adeno-associated viruses(AAV) for gene therapy
- Sep 2025Series C$40M
- Apr 2021Series B$110M
- Mar 2020Series A$60M
- Oct 2019Seed$8.3M
#2
Series D · Waltham, Massachusetts · founded 2019 · 203 employees$165.9Mraised▾
Chain of addiction and mental health treatment centers. They treat addiction as a chronic illness, and their evidence-based treatment model focuses on clinical and non-clinical factors, including medication, therapy, counseling, and meaningful connection to resources.
- Oct 2024Series D$30M
- Feb 2024Series C$22.2M
- Apr 2022Series C$78.6M
- May 2021Series B$20M
#3
Public · Waltham, Massachusetts · founded 1996 · 128044 employees$146.7Mraised▾
Chain of renal care clinics
- Apr 2024Post IPO$1M
- Jan 2024Post IPO$16.4M
- Dec 2023Post IPO$3.4M
- Oct 2023Post IPO$2.9M
#4
Acquired · Waltham, Massachusetts · founded 2014 · 8 employees$703.9Mraised▾
LumiraDx a healthcare solutions care management company specializing in the comprehensive support of individuals with chronic disease. The flagship software solutions called "Consult" allow health and social care providers to view and manage patient records that are always joined up across all venues of care, from the doctor’s office to a patient’s home. The patient-facing version of this software "Engage" allows individuals to view, manage, and share their own history from across all venues of care. Their platform also connects with a growing list of home and point-of-care diagnostic devices and personal biometric devices that record real-time activity including continuous heart rate, surface temperature, posture, sleep, stress levels and integrates this data into individual longitudinal records.
- Dec 2022Grant (prize money)$14.2M
- Apr 2021Conventional Debt$400M
- Dec 2020Series D$164M
- May 2020Series C$150M
#5
Public · Waltham, Massachusetts · founded 2001 · 17 employees$126.5Mraised▾
Developer of cell therapies and investigational drug formulations for cancer and rare diseases. It develops novel therapies by applying modern scientific advancements to established mechanisms, accelerating development opportunities. A key focus is on cell therapy for non-muscle invasive bladder cancer and lymphatic malformations, as well as an investigational phospholipid substrate replacement therapy for patients on parenteral support. The company is committed to bringing life-changing therapies to patients.
- Aug 2017Post IPO$22M
- May 2014Series D$45M
- Feb 2014Series B$4.3M
- Aug 2011Series B$15.2M
#6
Series B · Waltham, Massachusetts · founded 2019 · 289 employees$66.1Mraised▾
Provider of population health management services
- Apr 2021Series B$46.1M
- Apr 2020Series A$20M
#7
Acquired · Waltham, Massachusetts · founded 2008 · 153 employees$46.6Mraised▾
Provider of a hydrogel spacer for prostate cancer radiation therapy. This hydrogel is injected to create space between the rectum and prostate, reducing radiation exposure to the rectum during treatment. The procedure aims to minimize urinary, sexual, and bowel side effects associated with radiation therapy. The hydrogel is made of polyethylene glycol (PEG) and is intended for temporary use during radiotherapy. Potential complications, though rare, include injection site pain, inflammation, and other issues. Patients should discuss risks and benefits with their physician before treatment.
- Jul 2016Series E$6M
- Jul 2014Series D$10.8M
- May 2011Series C$15M
- Nov 2010Series B$3M
#8
Acquired · Waltham, Massachusetts · founded 1997 · 14 employees$33.6Mraised▾
Interleukin Genetics develops genetic tests for personalized medicine. PerioPredict predicts the patient's risk of developing severe periodontal disease by looking for a variant of the interleukin - 1 (Il-1) gene in the patient's genome. The Inherent Health™ brand of genetic tests offers personalized patient guidance using genetic analysis. These tests can be used to choose the right kind of diet for weight management, predisposition to heart attacks, inefficient B-vitamin utilization leading to oxidative stress and osteoporosis.
- Aug 2016Post IPO$5.6M
- Jan 2015Post IPO$5M
- May 2013Post IPO$12M
- Jul 2012Post IPO$3M
#9
Funding Raised · Waltham, Massachusetts · founded 2019 · 51 employees$12Mraised▾
Chain of pharmacies
- Oct 2021Conventional Debt$12M
#10
Acquired · Waltham, Massachusetts · founded 2002 · 58 employees$42.5Mraised▾
Adnexus Therapeutics (formerly known as Compound Therapeutics) discovers, develops, and distributes therapeutic class of biologics in the United States. The company’s product candidates include Angiocept/CT-322, an anti-angiogenesis agent for treating cancer that blocks the VEGFR-2 pathway; and other Adnectin therapies for the treatment of oncology, immunology, and cardiovascular diseases. It was acquired by Bristol-Myers Squibb in Sep, 2009.
- Aug 2007Series C$15.5M
- Jun 2006Series B$27M
#11
Series A · Waltham, Massachusetts · founded 2008 · 1 employees$12Mraised▾
Website setup tutorials for domain configuration and website appearance, offering guidance on making websites accessible through custom domains. The service provides clear instructions on domain configuration, guiding users through the process of linking their domain to the correct IP address. It simplifies website management by explaining how to update domain settings within the site's admin panel. This ensures websites load correctly across all supported browsers. The tutorials focus on user-friendly instructions, enabling individuals to manage their online presence effectively. This is a B2B service, offering a SaaS model for website management. The platform supports domain login and settings management.
- Aug 2014Grant (prize money)$150K
- Aug 2010Series A$4M
- Mar 2009Series A$8M
#12
Public · Waltham, Massachusetts · founded 1956—raised▾
Provider of electron microscopy services. It provides solutions for electron microscopy and microanalysis. It offers instruments combined with advanced software suites to take customers from questions to usable data by combining high-resolution imaging with physical, elemental, chemical and electrical analysis across scales and modes through the broadest sample types.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Healthcare 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.