Radii Devices Ltd
Radii Devices builds riiForm, a regulated web-based platform that uses historical socket-design and patient-outcome data to generate evidence-based fitting recommendations for prosthetists. It serves NHS clinics, the US Veterans Affairs healthcare system, and private prosthetic and orthotic practices via subscription.
- Company typePrivate
- Founded2020
- HeadquartersSouthampton, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Radii Devices Ltd does
Radii Devices Ltd is a UK-based healthtech company founded in 2020 by Joshua Steer out of his PhD research at the University of Southampton, headquartered in Bristol. The company builds riiForm, a web-based clinical software platform that supports prosthetists at every stage of the prosthetic and orthotic fitting process. riiForm applies evidence-based algorithms and a database of historical socket designs and patient outcomes to generate personalized socket-fit recommendations from patient 3D scans, with supporting modules for scan comparison (Compare, including Auto-Align) and refined digital modification. The product covers Below Knee and Above Knee workflows, with Ankle-Foot Orthosis in development, and is compatible with both carving and 3D-printing fabrication methods. A companion pilot-stage patient app, riiPort, is also in development to capture comfort data between appointments.
The platform is regulatory-cleared as a Class I medical device under UK MDR 2002 and EU MDR 2017/745 (UKCA and CE marked), and the company's Quality Management System is ISO-13485:2016 certified with FDA Medical Device Establishment registration. Radii generates revenue through an annual subscription priced per episode of care (covering all check sockets within an episode, rather than per export), sold via a sales-led motion that includes discovery sessions, clinical trials, and ongoing training. The go-to-market targets three primary segments: UK NHS prosthetic and orthotic clinics, the US Department of Veterans Affairs healthcare system (with a dedicated US Clinical Lead and a 2025 VA Puget Sound reference case producing the first VA-integrated 3D-printed definitive socket), and private prosthetic and orthotic clinics. Distribution is augmented through technology and channel partnerships with hardware manufacturers (HP Additive Manufacturing Solutions, PVA Med, SHINING 3D) and a US federal-market advisor (Red Duke Strategies).
Radii Devices Ltd firmographics
Firmographics- Name
- Radii Devices Ltd
- Legal name
- RADII DEVICES LTD
- Website
- https://radiidevices.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Radii Devices builds riiForm, a regulated web-based platform that uses historical socket-design and patient-outcome data to generate evidence-based fitting recommendations for prosthetists. It serves NHS clinics, the US Veterans Affairs healthcare system, and private prosthetic and orthotic practices via subscription.
- Ownership category
- akta.pro rank
Radii Devices Ltd industry classification
Industry- Product category
- Medical Device Software
- NAICS
- Surgical Appliance and Supplies Manufacturing (339113), Vocational Rehabilitation Services (62431)
- SIC
- Orthopedic, Prosthetic & Surgical Appliances & Supplies (3842), Electromedical & Electrotherapeutic Apparatus (3845)
- akta.pro primary industry
- Digital Rehabilitation & Physical Therapy Therapeutics (HLACANAJ)
- akta.pro secondary industries
- Orthotics & Bracing (AFO/KAFO, Spinal, Soft Goods Supports) (HLAHAMAC), Therapeutic Companion Apps (Drug-Device-Digital Combination) (HLACANAH), DTx/SaMD Evidence, Outcomes & Real-World Data (RWE) Platforms (HLACANAM)
Keywords
Where Radii Devices Ltd is headquartered
LocationHeadquarters
- HQ city
- Southampton
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Radii Devices Ltd business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- riiForm Subscription: riiForm operates on an episode of care model covering the entire fitting process from first scan through every adjustment to final definitive fit. The company does not use a 'pay-per-export' model, instead covering the full episode of care regardless of the number of check sockets needed.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Quote-based pricing through discovery sessions |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Radii Devices Ltd product offering
Product offeringCore offering
Radii Devices develops riiForm, a web-based clinical software platform that supports prosthetists and orthotists at every stage of the socket fitting process. The platform accepts patient 3D scans and returns instant, evidence-based design and fit recommendations generated from an extensive database of historical socket designs and patient outcomes. A pilot-stage companion application, riiPort, enables limb wearers to log comfort levels, activity, and fit details between appointments.
Product overview
Radii Devices Ltd offers a unified product ecosystem centered on riiForm, a web-based clinical software platform for evidence-based prosthetic and orthotic socket design. The platform provides data-driven fitting recommendations, scan comparison tools (Compare), and supports multiple workflows including Below Knee, Above Knee, and Ankle-Foot Orthosis fitting. An emerging companion application, riiPort, extends the ecosystem to patients for comfort monitoring. The core offering combines predictive analytics with clinical expertise to deliver comfortable, consistent prosthetic outcomes.
Differentiator
Problem solved
Functional benefit
Brands
- riiForm: Evidence-based web-based software platform that supports clinicians at every stage of the prosthetic and orthotic fitting process by providing instant, data-driven design and fit recommendations.
- riiPort
Products and services
- riiForm Web-based clinical software platform that supports prosthetists and orthotists at every stage of prosthetic and orthotic socket fitting. Clinicians upload patient 3D scans, set anatomical landmarks, and receive evidence-based fit suggestions derived from an extensive database of historical socket designs and patient outcomes. The platform includes a Compare tool for visualizing limb shape changes over time, intuitive modifying tools, and supports both carving and 3D printing fabrication methods. Licensed to prosthetic and orthotic clinics, NHS sites, and US Department of Veterans Affairs healthcare systems.
- riiPort Pilot-stage digital application designed to help veterans and limb wearers log prosthetic socket comfort levels, activity, and fit details between clinical appointments, supporting patient-clinician communication and continuity of insight across the episode of care.
Quantifiable outcome
- Patients rated socket comfort as comparable between evidence-generated (EG) sockets and traditional CAD/CAM sockets, with EG sockets showing lower variability in scores
- +3 more outcomes
Companies that use Radii Devices Ltd
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Radii Devices Ltd technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability5 records
Feature9 records
Radii Devices Ltd partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core, secondary and minor.
- HP Additive Manufacturing SolutionscoreHP provides Multi Jet Fusion additive manufacturing technology for producing definitive prosthetic sockets. Their computational design algorithm transforms clinical input into robust printable devices. HP's vapor smoothing process finishes sockets, and HP's O&P Design Services are establishing standards for digitally produced prosthetic devices.
- PVA MedcorePVA Med provides Rapid Plaster software for converting digital designs into printable models. Their Emergence Pro 3D printer produces WalkStrong reinforced check sockets with exceptional durability (up to 3 million cycles). Integration enables the complete scan-to-print workflow.
- VA Puget Sound Health Care System X_LabscoreVA Puget Sound X_Labs team collaborated to create the first definitive 3D-printed transtibial socket through an entirely VA-integrated workflow. Radii's riiForm enabled secure data sharing and collaborative socket design across VA teams.
- Red Duke StrategiessecondaryStrategic partner supporting the VA digital prosthetics initiative, helping to scale the workflow nationally across the VA network.
- SHINING 3DsecondaryCollaboration brings SHINING 3D's high-performance scanning solutions together with Radii's evidence-based fitting software riiForm, creating a faster smoother workflow from scan to socket.
- BLEMSA (The Limbless Veterans Charity)minorCharity supporting limbless veterans. Collaboration helps ensure technology reflects real-world needs and improves outcomes for people with limb difference.
- University of SouthamptoncoreRadii was founded based on Joshua Steer's PhD research at University of Southampton. Professor Alex Dickinson serves as academic co-founder and Professor of Prosthetics Engineering. The university and Radii collaborate on research including analysis of historical socket design records.
- Set SquaredminorStartup incubator supporting Radii Devices' early development. Set Squared is a university-backed business incubation program.
- Royal Academy of EngineeringminorRoyal Academy of Engineering affiliation and support for Radii Devices, a spinout from their research program.
- People Powered ProstheticsminorResearch group at University of Southampton focused on prosthetics. Professor Alex Dickinson serves as Technology Lead for this group.
- OpcareminorMajor UK provider of prosthetics services. Opcare provided access to historical socket design records for Radii's data analysis research, enabling the development of evidence-based design suggestions.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
Radii Devices Ltd competitors and assessment
Company assessmentBroad incumbents
- WillowWood: WillowWood is an established US prosthetic component manufacturer that also develops digital tools for socket and limb design — comparable as an incumbent seeking to embed software into prosthetist workflows.
- Ottobock: Ottobock is the largest global prosthetic and orthotic device manufacturer with embedded software/component ecosystems for socket design. It competes indirectly through its full prosthetic solution stack and could acquire or replicate riiForm-style functionality.
- Össur: Össur is a leading global non-invasive orthopedics company with both prosthetic components and digital design tools for prosthetists. Comparable as a broad incumbent pursuing digital workflow integration that overlaps Radii's target market.
Direct peers
- Create O&P: Create O&P is a practice-management and clinical workflow software vendor for orthotic and prosthetic clinics — comparable in target customer (O&P practices) and SaaS GTM motion even if functionally distinct.
- Rodin 4D: Rodin 4D offers CAD/CAM and scanning solutions tailored for orthotics, prosthetics and podiatry workflows — direct functional overlap with riiForm's evidence-based socket design approach.
- Vorum: Vorum is one of the longest-standing providers of CAD/CAM software for the orthotics and prosthetics industry, including scanners and shaping systems. Its SurePath and OMEGA platforms compete directly with riiForm inside O&P clinics.
Emerging players
- Spentys: Spentys provides a 3D scanning and printing platform for orthotics and prosthetics. It overlaps with the scan-to-print ecosystem Radii is positioning within via partnerships with HP and PVA Med.
- Standard Cyborg: Standard Cyborg builds software and 3D scanning workflows for prosthetic and orthotic design, including patient-facing measurement tools — comparable as a digital-design entrant in the O&P market.
- Mecuris: Mecuris provides a digital platform for customized 3D-printed orthotics and prosthetics, similar in positioning to riiForm as a software-driven customization layer for O&P care.
Regional players
- Hanger Orthopedic Group: Hanger operates one of the largest US networks of O&P patient care clinics and acts as a buyer/influencer of O&P software tools such as riiForm — directly relevant as a customer/partner channel for VA and US prosthetics markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Radii Devices Ltd social profiles
Digital presenceRadii Devices Ltd compliance and trust
Trust signalCompliance3 records
Radii Devices Ltd financial estimates
Financial estimateRevenue estimate
Valuation estimate
Radii Devices Ltd leadership team
Management profileNumber of profiles
Profiles6 records
Radii Devices Ltd funding detail
Funding detailFunding overview
Funding rounds1 record
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Radii Devices Ltd 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 Radii Devices Ltd
What does Radii Devices Ltd do?
Radii Devices develops riiForm, a web-based clinical software platform that supports prosthetists and orthotists at every stage of the socket fitting process. The platform accepts patient 3D scans and returns instant, evidence-based design and fit recommendations generated from an extensive database of historical socket designs and patient outcomes. A pilot-stage companion application, riiPort, enables limb wearers to log comfort levels, activity, and fit details between appointments.
Is Radii Devices Ltd a public or private company?
Radii Devices Ltd is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Radii Devices Ltd founded?
Radii Devices Ltd was founded in 2020. It employs 1 to 10 people.
Where is Radii Devices Ltd based?
Radii Devices Ltd is headquartered in Southampton, United Kingdom, in the Europe region.
How does Radii Devices Ltd make money?
One revenue line is on record: riiForm Subscription.
Who are Radii Devices Ltd's main competitors?
Broad incumbents on record are WillowWood, Ottobock and Össur. Direct peers are Create O&P, Rodin 4D and Vorum. Emerging players are Spentys, Standard Cyborg and Mecuris. Hanger Orthopedic Group is listed as a regional player.
Does Radii Devices Ltd have an API?
No public API is recorded for Radii Devices Ltd.
What industry is Radii Devices Ltd in?
Radii Devices Ltd's product category is Medical Device Software. Its primary akta.pro industry code is HLACANAJ, Digital Rehabilitation & Physical Therapy Therapeutics, with a secondary code of HLAHAMAC, Orthotics & Bracing (AFO/KAFO, Spinal, Soft Goods Supports). Its NAICS code is 339113 and its SIC code is 3842.