Castor
Castor is a cloud-native eClinical platform unifying EDC, CDMS, eCOA/ePRO, eConsent, and DCT capabilities with an AI module (Castor Catalyst) for biopharma, medical device, CRO, and academic clinical trials across 150+ countries.
- Company typePrivate
- Founded2012
- HeadquartersAmsterdam, Netherlands
- Headcount251–500
- GTM typeB2B
- OfferingSoftware
What Castor does
Castor, headquartered in Amsterdam and founded in 2012, is a cloud-native eClinical platform provider that unifies Electronic Data Capture (EDC), Clinical Data Management System (CDMS), eCOA/ePRO, eConsent, and Decentralized Clinical Trial (DCT) capabilities into a single 5-in-1 system, eliminating the data handoffs and middleware typical of multi-vendor stacks. The platform is built on Google Cloud infrastructure using an API-first architecture with RESTful APIs, a Python SDK, and direct integrations into SAS, R, HL7 FHIR, and CDISC standards, supporting more than 160 countries and 20+ languages. In late 2025 the company launched Castor Catalyst, an AI module that automates EMR extraction, I/E screening, CDISC mapping, and ePRO triggering for self-driving clinical studies, validated by medically trained staff. The platform serves biopharmaceutical companies, medical device and diagnostics manufacturers, contract research organizations, and academic researchers, with named customers including WHO, Stryker, Dexcom, Ethicon, Akili Interactive, Sword Health, Julius Clinical, and Gameto.
The company operates a multi-channel go-to-market combining tailored direct enterprise sales, professional-services-led implementation with dedicated project managers and clinical implementation specialists, and a self-serve free trial with low-code eCRF building for academic and SMB users. Revenue is generated primarily through modular SaaS subscriptions (EDC, CDMS, eCOA, eConsent, DCT, RWE, Catalyst AI) sold on multi-year contracts to enterprise customers, supplemented by fixed-fee data management services covering query management, MedDRA/WHODrug coding, and database lock, plus training revenue through Castor Academy. Pricing is quote-based rather than published, with tiered academic impact program pricing as a long-tail acquisition channel. As of 2024, the platform supports 7M+ patients, 50,000+ researchers, and 6,500+ late-phase projects, with 84% of studies going live in under 4 weeks and >99.9% platform uptime, and has raised approximately $64.4M across funding rounds through a 2021 $45M Series B led by Eight Roads Ventures and F-Prime.
Castor firmographics
Firmographics- Name
- Castor
- Legal name
- Castor
- Website
- https://castoredc.com
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Castor is a cloud-native eClinical platform unifying EDC, CDMS, eCOA/ePRO, eConsent, and DCT capabilities with an AI module (Castor Catalyst) for biopharma, medical device, CRO, and academic clinical trials across 150+ countries.
- Ownership category
- akta.pro rank
Castor industry classification
Industry- Product category
- Clinical Trial Software
- NAICS
- Scientific Research and Development Services (5417)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Processing & Data Preparation (7374)
- akta.pro primary industry
- Electronic Data Capture (EDC) Platforms (HLACAOAA)
- akta.pro secondary industries
- Decentralized/Hybrid Trial Enablement (DCT) Platforms (HLACAOAL), Clinical Data Management, Biostatistics & Statistical Programming CROs (HLAGAAAF), Clinical CROs (Phase I–IV) (HLAGAAAA)
Keywords
Where Castor is headquartered
LocationHeadquarters
- HQ city
- Amsterdam
- HQ country
- Netherlands
- HQ region
- Europe
Markets served
Castor business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations
Revenue model
- SaaS Platform Subscription: Cloud-based eClinical platform licensed as modular SaaS solution. Customers select platform modules (EDC, CDMS, eCOA, eConsent, DCT, RWE, Catalyst AI) based on study requirements. Pricing based on modules selected, study complexity, and participant volume.
- Professional Services: Implementation, training, and ongoing support services. Includes EDC build services, eCOA services (licensing, translations, device provisioning), data management services, and expert integration oversight. Fixed-fee pricing model with predictable costs.
- Data Management Services: Expert data management team operates as extension of customer team. Covers data review, query management, medical coding (MedDRA, WHODrug), database lock, and regulatory export. Fixed-fee packages from startup through closeout.
- Training Services: Castor Academy provides free self-paced eLearning, plus live instructor-led training sessions tailored to specific study builds. Revenue from training sessions and premium support packages.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Multi-year contract | Enterprise Platform Subscription |
| Subscription | Annual | Academic Impact Program |
| Freemium | Pay-as-you-go | Self-Serve Trial |
| Subscription | Multi-year contract | Data Management Fixed-Fee Packages |
Go-to-market motion5 records
Distribution channels5 records
Marketing channels10 records
Castor product offering
Product offeringCore offering
Castor provides a cloud-based eClinical platform that combines Electronic Data Capture (EDC), Clinical Data Management System (CDMS), eCOA/ePRO, eConsent, Decentralized Clinical Trial (DCT) capabilities, and AI-powered Real-World Evidence generation in a single integrated system. The platform serves pharmaceutical, biotech, medical device, CRO, and academic research customers running clinical studies in 150+ countries.
Product overview
Castor offers a unified eClinical platform that combines Electronic Data Capture (EDC), Clinical Data Management System (CDMS), eCOA/ePRO, eConsent, and Decentralized Clinical Trials (DCT) capabilities in a single integrated system. The platform operates as a 5-in-1 solution (EDC, ePRO, eCOA, eConsent, and eRecruitment) with native integration and no middleware required. Castor's AI-powered Castor Catalyst module extends the platform with automated real-world evidence generation and self-driving clinical study capabilities. The platform supports 160+ countries and is trusted by 500+ customers including top pharmaceutical companies, CROs, medical device companies, and academic institutions.
Differentiator
Problem solved
Functional benefit
Brands
- Castor Catalyst: AI-powered Real-World Evidence generation platform built on Google Cloud infrastructure, enabling self-driving clinical studies with automated EMR extraction and data processing.
- Castor EDC
- Castor CDMS
- Castor eCOA/ePRO
- Castor eConsent
- Castor DCT
- Castor Impact Program
- Castor Academy
Products and services
- Electronic Data Capture (EDC)
Quantifiable outcome
- 84% of studies go live in under 4 weeks
- +9 more outcomes
Companies that use Castor
Customer profileNamed customers18 records
Segments5 records
Ideal customer profiles4 records
Castor technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability3 records
Feature9 records
Castor partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and flagship.
- Google CloudcoreCastor Catalyst AI platform built on Google Cloud infrastructure and generative AI technologies. Castor's 'self-driving clinical trials' use Google Cloud's generative AI capabilities. Deep technology partnership enabling AI-powered automation of EMR extraction, patient screening, and chart review.
- WHOflagshipWorld Health Organization deployed Castor EDC for the Solidarity Trial - 5,000 investigators across 600 sites in 52 countries. Landmark global clinical trial for COVID-19 treatment evaluation.
Scale indicators27 records
Recent moves6 records
Expansion highlights6 records
Castor competitors and assessment
Company assessmentBroad incumbents
- Medidata (Dassault Systèmes): Market-leading eClinical platform offering Rave EDC, eCOA, eConsent, RTSM, and DCT capabilities. Direct competitor to Castor across biopharma enterprise contracts with deeper CRO and sponsor entrenchment.
- Veeva Systems: Cloud platform spanning Vault EDC, ePRO, CDB, and CTMS for life sciences. Competes with Castor across enterprise biopharma with a broader CRM and regulatory information management footprint.
- Clario: Generated by merging ERT and Bioclinica, offering EDC, eCOA, imaging, and cardiac safety services. Competes with Castor's clinical data capture and eCOA capabilities across late-phase and medical device trials.
- Oracle Clinical One: Oracle's unified clinical trial platform combining EDC, RTSM, ePRO, and analytics. Directly competes with Castor's unified platform story at enterprise biopharma accounts.
- IQVIA: Largest CRO with embedded technology platforms for EDC, RWE, and trial analytics. Competes with Castor both as a CRO buyer of EDC platforms and as an integrated alternative for sponsors.
Direct peers
- Medable: Decentralized clinical trial platform focused on eCOA, eConsent, telehealth, and remote data capture. Closely comparable to Castor's DCT offering and target customer base (biopharma, digital therapeutics).
- Signant Health: Patient-centric clinical trial technology provider offering eCOA, eConsent, RTSM, and patient engagement. Overlaps directly with Castor's eCOA/eConsent modules and biopharma customer base.
- Viedoc: Cloud-native eClinical suite with EDC, ePRO, eConsent, and randomization. Direct competitor to Castor in mid-market biopharma and academic trials with similar low-code positioning.
- OpenClinica: Open-source and cloud EDC/CDMS platform for clinical trials. Comparable to Castor's EDC/CDMS offering with overlapping academic and emerging biopharma customers.
- Y-prime: eClinical technology and data management provider for clinical trials, with strong eCOA capabilities. Comparable to Castor's eCOA and clinical data management services.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Castor social profiles
Digital presenceCastor compliance and trust
Trust signalCompliance7 records
Castor financial estimates
Financial estimateRevenue estimate
Valuation estimate
Castor leadership team
Management profileNumber of profiles
Profiles5 records
Castor funding detail
Funding detailFunding overview
Funding rounds4 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Castor M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Castor
What does Castor do?
Castor provides a cloud-based eClinical platform that combines Electronic Data Capture (EDC), Clinical Data Management System (CDMS), eCOA/ePRO, eConsent, Decentralized Clinical Trial (DCT) capabilities, and AI-powered Real-World Evidence generation in a single integrated system. The platform serves pharmaceutical, biotech, medical device, CRO, and academic research customers running clinical studies in 150+ countries.
Is Castor a public or private company?
Castor is a private company. It is classified as venture growth investor backed and is currently operating.
When was Castor founded?
Castor was founded in 2012. It employs 251 to 500 people.
Where is Castor based?
Castor is headquartered in Amsterdam, Netherlands, in the Europe region.
How does Castor make money?
Four revenue lines are on record. SaaS Platform Subscription is the primary driver. The others are professional Services, data Management Services and training Services.
Who are Castor's main competitors?
Broad incumbents on record are Medidata (Dassault Systèmes), Veeva Systems, Clario, Oracle Clinical One and IQVIA. Direct peers are Medable, Signant Health, Viedoc, OpenClinica and Y-prime.
Does Castor have an API?
Yes. Castor offers a RESTful API built on OAuth2 for secure, scalable integration with external systems. The API enables developers to build or automate data integration, study management, and clinical trial workflows. Castor provides a Python SDK package (castoRedc) for R users that pulls study data directly into R for analysis without manual reformatting. The API documentation is available at data.castoredc.com/api with full details on authentication, endpoints, and rate limits. Developer documentation is at data.castoredc.com/api.
What industry is Castor in?
Castor's product category is Clinical Trial Software. Its primary akta.pro industry code is HLACAOAA, Electronic Data Capture (EDC) Platforms, with a secondary code of HLACAOAL, Decentralized/Hybrid Trial Enablement (DCT) Platforms. Its NAICS code is 5417 and its SIC code is 7372.