The Castor Portfolio

Smart, Simple Venture Investing


Diverse, High-Quality Venture Portfolios

How Do These Venture Investments Compare to What You've Seen in the Past?

All Funds
  • All Funds
  • Castor 1
  • Castor 2
Kinsa

Growth

Wearables & Quantified Self

California

EverQuote

Opportunistic

InsurTech

New England

DataXu

Growth

AdTech

New England

Ready4

Growth

EdTech

New England

Akselos

Early

Saas

Europe

Domo

Late

Saas

Mountain

Replenish

Early

LOHAS & Wellness

California

Smartvid.io

Early

Artificial Intelligence & Machine Learning

New England

Humatics

Early

Robotics & Drones

New England

C2Sense

Early

Internet of Things

New England

Manus Bio

Early

AgTech

New England

Respiratory Motion

Growth

HealthTech

New England

Celularity

Growth

Life Sciences

Mid-Atlantic

Trocafone

Growth

E-Commerce

South/Central America

Deserve

Growth

FinTech

California

ScanTrust

Early

Saas

Europe

Consumer Physics

Early

Internet of Things

Middle East

Teal Drones

Early

Robotics & Drones

Mountain

Consumer Physics

Early

Internet of Things

Middle East

PastureMap

Early

AgTech

California

Sentenai

Early

Artificial Intelligence & Machine Learning

New England

Prenav

Early

Robotics & Drones

California

Lumiata

Early

HealthTech

California

Relayr

Growth

Internet of Things

Europe

Heal

Growth

Mobile

California

Horsepower Technologies

Early

Wearables & Quantified Self

New England

Agile Stacks

Early

Saas

California

Twenty20

Seed

Ephemeral Content

California

GrubMarket

Growth

E-Commerce

California

RapidSOS

Early

Internet of Things

New York

Unity Biotechnology

Growth

Life Sciences

California

Accolade

Growth

HealthTech

Mid-Atlantic

SHINE Medical Technologies

Growth

Oncology

Great Lakes

Sunfolding

Early

CleanTech

California

Verity Studios

Early

Robotics & Drones

Europe

Vesper Technologies

Growth

AudioTech

New England

PetPlate

Early

LOHAS & Wellness

New York

CNEX Labs

Growth

Big Data

California

About the Company

Kinsa is creating the world's first real-time map of human health

About the Company

Online auto insurance marketplace

About the Company

Petabyte-scale marketing platform that enables brands to better understand and engage consumers via programmatic technologies

About the Company

Machine learning-based, gamified testing smartphone apps

About the Company

Next-generation engineering simulations for offshore oil & gas, and power system industries, making digital twins a reality

About the Company

SaaS platform for business intelligence, analysis, and collaboration

About the Company

The first self-cleaning appliance that instantly prepares healthy smoothies and snacks

About the Company

Smart AI-based identification of safety and machine-trained incidents at construction sites

About the Company

Humatics has developed breakthrough radar-based technology that enables ultra-low-cost millimeter scale positioning, thereby creating a new category of micro-location.

About the Company

Produces carbon nanotube gas sensors that target gases unable to be sensed through other methods for several different applications

About the Company

Biochem manufacturer that makes cost-effective, sustainable natural ingredients from plants via an innovative fermentation technology

About the Company

Revolutionary non-invasive direct respiratory monitoring, like an EKG for the lungs

About the Company

Celularity has developed cellular therapies and biomaterials from the placenta to amplify the body’s ability to fight disease, heal, and regenerate itself.

About the Company

Developer of an e-commerce marketplace designed to buy and sell used electronics.

About the Company

Consumer lending company targeting deserving but underserved Millennial and Generation Z consumers who lack access to traditional credit

About the Company

Non-forgeable digital fingerprint to identify and locate products with a smartphone anywhere in the supply chain

About the Company

Sells SCIO, first sensor that hovers over and determines quality and content of foods and substances on iPhones for consumers and industry

About the Company

Drones designed to improve augmented reality, security, and inspections

About the Company

Sells SCIO, first sensor that hovers over and determines quality and content of foods and substances on iPhones for consumers and industry

About the Company

Grazing management and ranching software designed to improve cattle grazing and achieve grass fed certifications

About the Company

Sentenai has created a data cloud infrastructure to deliver automated data engineering for data science and machine learning applications.

About the Company

Developer of precision-guided drones designed to help in infrastructure inspection.

About the Company

Lumiata is a healthcare-focused artificial intelligence platform company optimizing healthcare delivery to individuals, supporting prediction of patient-specific clinical trajectories, and driving population healthcare management.

About the Company

Provider of an industrial IoT middleware platform designed to facilitate interoperability through industrial-grade platforms.

About the Company

Founded in 2014, Heal has delivered 45,000 doctor house calls that have driven over $31M in healthcare cost savings in just 2.5 years.  Heal has built technology to lower healthcare OpEx by 65%.

About the Company

Animal healthcare and biotech company intended to combat equine lameness.

About the Company

Provider of automated cloud development and deployment services created to provide production-ready infrastructure for microservices – the next step in automation for the Cloud.

About the Company

Twenty20 provides a marketplace for crowdsourced imagery. The company connects brands and creative agencies with authentic, real-world imagery crowdsourced from users around the world.

About the Company

GrubMarket is a leading online farm-to-table eCommerce platform for wholesome, fresh, organic produce, and foods conveniently delivered to end customers at affordable prices. 

About the Company

RapidSOS is developing an emergency technology platform, capable of predicting and preempting emergencies before they occur.

About the Company

Unity Biotechnology is a developer of small molecule medicines that potentially halt, slow, or reverse age-associated diseases, while restoring human health.

About the Company

Accolade has developed a personalized health and benefits platform designed to improve the experience, outcomes, and cost of healthcare.

About the Company

SHINE is an advanced manufacturing company dedicated to being the world leader in the safe, clean and affordable production of medical isotopes for heart disease and cancer treatment elements.

About the Company

Sunfolding has a proprietary solar tracker that reduces installation time, lowers maintenance cost and improves land utilization for solar plants. Their technology replaces motors, gears, dampers, batteries, grease and bearings with a single component.

About the Company

Verity Studios is a provider of indoor drone shows. The company's product Synthetic Swarm, is a drone show system that combines its proprietary software with its new LucieTM micro drones.

About the Company

Vesper is the leader in piezoelectric micro-electro-mechanical systems (MEMS) microphones for consumer applications. The company's superior microphone design aims to bring studio quality acoustics into handheld and IoT devices.

About the Company

A pet food delivery company that provides healthy, all-natural and customized meals for dogs. Based on the size and breed, PetPlate creates a meal plan according to your dog's specific profile and needs.

About the Company

CNEX Labs is a data storage solutions company that manufactures high-performance semiconductors and software for cloud, hyper-scale and enterprise data centers.