John Harthorne
CEO and Founder @ MassChallenge
Boston, United States
John Harthorne is a non-equity assistance investor at MassChallenge in Boston focused on Health Care and Apps. John Harthorne is the current Founder and Managing Director of Two Lanterns Venture Capital. John Harthorne previously founded MassChallenge, the world's largest non-profit startup accelerator. He attended MIT Sloan School of Management.
- Total investments:
- 13
- Last investment:
- Lead investor:
- 23%
Last updated:
For AI agents: llms.txt
Industries John Harthorne invests in
Stages John Harthorne invests in
Countries John Harthorne invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Health Care 4 (31%)
- Apps 2 (15%)
- Software 2 (15%)
- Wellness 2 (15%)
- Therapeutics 2 (15%)
Stage
- Non-equity Assistance 12 (92%)
- Pre-Seed 1 (8%)
Country
- Switzerland 7 (54%)
- United States 5 (38%)
- France 1 (8%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| $1.3T is spent globally each year to drive traffic to ecommerce websites. Only 3% convert. That’s because most sites don’t know who you are. Because is a CRO & Personalization platform for Shopify - powered by Klaviyo dataWe help connect all the data merchants have in their tech stack across Shopify, Klaviyo, Yotpo, Loyalty Lion, Recharge,Octane, and more to create a dynamic website experience. Brands like Tom Brady’s TB12, Hello Kitty, Echelon, Duke Cannon, The Adventure Challenge, and more use Because to increase conversion by 23%+ | $650K / Pre-Seed / Apr 01, 2021 | ||
| re:3D reduces production complexity by providing affordable, industrial 3D printers that transform big ideas into tangible realities. With a build volume of eight cubic feet and robust construction, Gigabot can print objects 30x larger than competing desktop models. Up until now, personal 3D printing has been limited to toys and trinkets, whilethe Gigabot will bring your biggest dreams to life. re:3D's customer base comprises an esteemed group of designers, small business owners, manufacturers, educators, prototypists, and hobbyists in over 30 countries around the globe.Currently, re:3D is scaling manufacturing operations, and exploring alternate materials and feedstocks with global leaders in material and life sciences. | Non-equity Assistance / Oct 21, 2020 | ||
| Versantis is a Swiss pharmaceutical company, Spin-off of ETH Zurich, developing a new generation of medicines and diagnostics to revolutionize the care of patients with liver disease. Embracing lifesaving and preventive therapies, Versantis aims to answer the unmet medical need of millions of people worldwide. Its lead candidate, VS-01, iscurrently at preclinical stage and has the potential to be the first drug for acute liver disease simultaneously supporting multiple failing organs. VS-01 targets 3 rare indications and received an Orphan Drug Designation in ALF. In addition, Versantis’ pipeline promises to improve patients’ outcome in other medical fields; VS-02 and VS-03 are developed for chronic liver diseases and for the treatment of drug intoxications, both representing large market opportunities and significant upsides for Versantis. | $102.5K / Non-equity Assistance / Nov 02, 2016 | ||
| Darix makes augmented reality applications for professionals. | Non-equity Assistance / Nov 02, 2016 | ||
| The application homePad Pro is made for the professional users that want to have a complete tool for managing property inspections.Available in the AppSoreHomePad is the first simple and intuitive application available on the Appstore allowing you to establish an inspection report for the outgoing / incoming tenants.The paper supportsused currently to document property inspections are particularly constraining and require significant storage space. HomePad is the first application for iPad that guides you simply and professionally through the procedure. No training is required!No documents to prepare. Begin with a new inspection or from an existing one, complete the necessary information and start the inspection. Creating new room details and checking any damage takes only a few minutes using photos and keywords! Meter reading? Key inventory? No problem, homePad has already thought it out for you! Complete the inventory using handwritten electronic signatures, generate the PDF and send it simultaneously to all parties and store it in their collaborative platform. | Non-equity Assistance / Nov 02, 2016 | ||
| Intento develops a digital health device solution to help people recover motor function after stroke. Its solution is based on functional electrical stimulation and does not require any prior knowledge on electrode placement or involve complicated steps to configure the system, as opposed to other solutions on the market. Intento's device iscomposed of a tablet application meant to be used by therapists in conjunction with a device for patient-use. | Non-equity Assistance / Nov 02, 2016 | ||
| Gait Up is a spin-off of the University Hospital of Lausanne (CHUV) and the Swiss Institute of Technology of Lausanne (EPFL), funded in 2013. Gait Up benefits from 15 years of scientific experience in the field of movement analysis and measurements, and is now providing innovative products for objective evaluation of health and performance, basedon wearable sensor technology. They are already trusted by 50+ customers in academics, clinics, and industry in Europe, Canada, US and Asia. | Non-equity Assistance / Nov 02, 2016 | ||
| Fastree3D imaging sensors help recognize and measure distance to fast moving objects in real-time, enabling driving assistance or autonomous navigation. Fastree3D SA is a fabless semiconductor company, spin-off from EPFL Lausanne, Switzerland founded in September 2013 (UID CHE-291.330.490). The company subsidiary Fastree3D B.V. performs researchwith TU-Delft, Netherlands (KvK 58866973). | Non-equity Assistance / Nov 02, 2016 | ||
| At Sensorwake, we are eager to diffuse, all over the world, a breeze of good mood and well-being. | Non-equity Assistance / Nov 01, 2016 | ||
| ARTMYN provides a disruptive solution for highly accurate digitization of visual artworks, with interactive rendering on mobile devices and accessible via a simple web browser. A unique portable scanner captures gigabytes of data describing the artwork in its finest details, which, along with proprietary web technologies, result in a true-to-lifevisualisation. This complete new experience allows users to embark on an emotional journey where digital replicas can be explored just as if the originals were in their very own hands. | Non-equity Assistance / Jun 24, 2016 | ||
| See all 13 investments → | |||
Co-Investors
About MassChallenge
MassChallenge works with founders developing solutions across sectors such as healthcare, climate, food systems, financial services, and security. It connects startups with corporate partners, investors, industry experts, and policymakers to facilitate business development and market entry. MassChallenge provides programming that includesmentorship, training, and access to resources that assist with product development, go-to-market strategy, and scaling operations. Its ecosystem integrates founders, advisors, and institutional partners to support company growth and advancement within complex industries.
MassChallenge Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Antonio Procopio
Judge
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Cait Brumme
Acting Chief Executive Officer
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Camila Lecaros
Managing Director
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Charlotte Jepps
Expert & Accelerator Program Judge
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Chris Houlihan
Chief Growth Officer
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FAQ
What does John Harthorne invest in?
John Harthorne invests primarily in Health Care, Apps and Software startups, most often at Non-equity Assistance and Pre-Seed stage. Most of the 13 investments tracked by Shizune back companies in Switzerland. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact John Harthorne?
Public channels for John Harthorne include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did John Harthorne last invest?
The most recent investment recorded for John Harthorne closed in Apr 2021. Shizune tracks 13 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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