What LegWorks does

LegWorks is a for-profit social enterprise that designs, manufactures, and distributes prosthetic knee joints for lower-limb amputees. The company is built around a 4-bar polycentric kinematic platform featuring patented AutoLock Technology (a stance-phase controller that automatically engages in late swing and disengages in mid-to-late stance) and a patent-pending Variable Cadence Controller (a non-hydraulic swing-phase controller using variable friction and an extension assist spring), which together deliver stability and multi-cadence gait without batteries, hydraulics, or pneumatics. The product line comprises the All-Terrain Knee (entry 275 lb / freshwater only), the All-Terrain Knee Premium (330 lb / fresh- and saltwater), the ATK HydraPro (hydraulic VCC for K3-K4 active users), and an HD Series spanning heavy-duty variants of the Premium and HydraPro; each is offered in stance-flexion and threaded-top configurations and carries a 24-month warranty.

The business operates a hybrid go-to-market. Commercial revenue comes from one-time sales of knees via a Shopify e-commerce storefront, inside-sales phone lines, and three authorized US distributors (Cascade, Empire Medical, SPS), targeting prosthetists and underinsured amputees who cannot access $50K microprocessor knees, supported by a 30-day risk-free loaner program and Medicare L-code reimbursement (L5611, L5845, L5850, L5925). A parallel social-enterprise channel, the LegWorks Mobility Project, distributes subsidized and donated knees through NGO partners (Exceed Worldwide, Range of Motion Project, SwissLimbs, We Help Two) to amputees in 19 developing countries, where the company cites that 90% lack access to prosthetic devices.

The company was formed around the research of CTO Jan Andrysek at Toronto's Holland Bloorview Kids Rehabilitation Hospital and University of Toronto IBBME; the head office is in Buffalo, NY (relocated from San Francisco in 2017) with engineering based in Toronto; leadership includes CEO Brandon Burke (former CPO, above-knee amputee and user), Chair Jonathan Hera (Marigold Capital), and co-founder David Green (MacArthur/Ashoka Fellow). Reported funding includes a $500K 43North investment (2018), ~$240K (2017), a $2M consortium led by Grand Challenges Canada (2015), and a $20K OCE Parapan Am award (2015).

Name

LegWorks

Legal name

LegWorks

Website

https://legworks.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

LegWorks is a for-profit social enterprise that designs, manufactures, and sells 4-bar prosthetic knee joints with patented AutoLock stance control and non-hydraulic swing control, serving individual amputees, prosthetists, and NGOs in the US and 19 developing countries.

Ownership category

akta.pro rank

Product category

Prosthetic Knee Joints

SIC

Orthopedic, Prosthetic & Surgical Appliances & Supplies (3842)

akta.pro primary industry

Limb Prosthetics (Upper/Lower Extremity Prosthetic Systems) (HLAHAEAH)

Keywords

• Prosthetic knee joints
• Prosthetic medical devices
• Mobility assistive devices
• Orthopedic rehabilitation equipment
• 4-bar prosthetic knees

Headquarters

HQ city

Toronto

HQ country

Canada

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Prosthetic Knee Sales: One-time sale of prosthetic knee joints (All-Terrain Knee, All-Terrain Knee Premium, ATK HydraPro, and HD Series). Products covered by insurance reimbursement codes L5611, L5845, L5850, L5925.
2. Social Enterprise/Impact Sales: Subsidized knee sales and donations to developing countries through partnerships (LegWorks Mobility Project), serving amputees who cannot afford commercial devices.

Pricing tiers

Go-to-market motion4 records

Distribution channels5 records

Marketing channels9 records

Core offering

LegWorks manufactures and sells prosthetic knee joints for lower-limb amputees, built on a proprietary 4-bar polycentric design with patented AutoLock stance-phase control and a patent-pending Variable Cadence Controller for swing-phase control. The All-Terrain Knee, All-Terrain Knee Premium, ATK HydraPro, and HD Series product lines cover K1 to K4 mobility levels, with both freshwater-only and saltwater-submersible variants, supported by a 24-month warranty and a 30-day loaner trial program.

Product overview

LegWorks offers the All-Terrain Knee Collection and ATK HydraPro product lines of prosthetic knee joints. The portfolio centers on 4-bar prosthetic knees with patented AutoLock Technology (stance phase controller) and Variable Cadence Controllers. The All-Terrain Knee line provides non-fluid-based swing phase control with weight ratings of 275-330 lb, while the ATK HydraPro line adds hydraulic damping for active K3-K4 users. Products are available in standard, stance flexion, and threaded top variants, with HD (Heavy Duty) models for higher weight capacities. All products include a 24-month warranty and are waterproof (freshwater only for standard ATK, freshwater and saltwater for Premium and HydraPro models). The product line targets amputees from K1 to K4 mobility levels.

Differentiator

Problem solved

Functional benefit

Brands

• LegWorks Mobility Project: Charitable initiative that provides subsidized prosthetic knees to amputees in developing countries who would not otherwise have access to prosthetic devices

Products and services

• All-Terrain Knee A 4-bar prosthetic knee joint with patented AutoLock Technology stance-phase control and a patent-pending Variable Cadence Controller for non-hydraulic swing-phase control. Designed for K1-K4 mobility levels with a 275 lb (125 kg) weight rating and freshwater submersibility. Aimed at lower-limb amputees, particularly those needing stability and affordability versus $50,000 microprocessor knees. Available in base, stance-flexion, and threaded-top variants.
• All-Terrain Knee Premium A waterproof 4-bar prosthetic knee joint with patented AutoLock Technology, featuring corrosion-resistant construction submersible in both fresh and salt water and a higher 330 lb (150 kg) weight rating. Targeted at active amputees and water-leg users, including those seeking a primary or secondary shower/pool/beach leg. Available in base, stance-flexion, and threaded-top variants.
• All-Terrain Knee Premium HD Heavy-duty version of the All-Terrain Knee Premium within LegWorks' HD Series. Built for amputees with higher weight capacities and demanding use cases, retaining the AutoLock Technology and waterproof construction of the Premium line.
• ATK HydraPro A waterproof hydraulic prosthetic knee joint with patented AutoLock Technology and a patent-pending Hydraulic Variable Cadence Controller allowing multiple walking speeds. Designed for K3-K4 active amputees with a 330 lb (150 kg) weight rating and fresh- and saltwater submersibility. Available in base, stance-flexion, and threaded-top variants.
• ATK HydraPro HD Heavy-duty version of the ATK HydraPro within LegWorks' HD Series. Waterproof hydraulic knee with AutoLock Technology for active amputees requiring higher weight capacities and demanding use.
• 30-Day Risk-Free Loaner Program A risk-free 30-day trial program that allows prosthetists and amputees to evaluate the All-Terrain Knee with LegWorks support before committing to purchase. Available to U.S. and international customers.
• LegWorks Mobility Project Charitable initiative that provides subsidized LegWorks prosthetic knees to amputees in 19 developing countries through partnerships with NGOs (Exceed Worldwide, ROMP, SwissLimbs, We Help Two). Addresses the fact that 90% of amputees in the developing world lack access to prosthetic devices.

Quantifiable outcome

• Patients expend 40% less energy on average when using the All-Terrain Knee
• +3 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Exceed WorldwidecoreStrategic or Co-development PartnerExceed Worldwide trains prosthetists in developing countries, enabling both newly trained prosthetists and the patients they serve. Over 50,000 assistive devices have been provided to date. Partnership enables LegWorks Mobility Project deployments.
• Range of Motion Project (ROMP)coreStrategic or Co-development PartnerROMP's mission is to provide underprivileged people with access to prosthetic limbs so they can return to their families and communities as productive, healthy individuals. Direct partner for fitting amputees with LegWorks knees.
• SwissLimbscoreStrategic or Co-development PartnerSwissLimbs works to educate professionals and organizations to ensure that technology in the prosthetic industry is being used to its greatest ability. Partnership provides amputees like Hussein in Tanzania with LegWorks knees.
• We Help TwocoreStrategic or Co-development PartnerCharitable organization that provides prosthetic limbs to those in need. Has helped provide All-Terrain Knees to amputees like Eunice in Ghana and Ibrahim in Ghana.
• CascadecoreChannel Partner/ Reseller/ DistributorAuthorized U.S. distributor for LegWorks prosthetic knees.
• Empire MedicalcoreChannel Partner/ Reseller/ DistributorAuthorized U.S. distributor for LegWorks prosthetic knees.
• SPScoreChannel Partner/ Reseller/ DistributorAuthorized U.S. distributor for LegWorks prosthetic knees.
• Holland Bloorview Kids Rehabilitation HospitalcoreStrategic or Co-development PartnerResearch institution where CTO Jan Andrysek serves as scientist. Partnership includes Bloorview Research Institute and clinical validation of LegWorks technology.
• University of Toronto - IBBMEcoreStrategic or Co-development PartnerInstitute of Biomaterials and Biomedical Engineering where CTO Jan Andrysek is associate professor. Academic partnership for technology development and research.
• Invest Buffalo NiagaraminorStrategic or Co-development PartnerEconomic development organization that recruited LegWorks and managed introduction to Western New York community. Facilitated company's move from San Francisco to Buffalo.

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Össur: Iceland-based global prosthetics and bracing company offering the Rheo, Power Knee, and Mauch knee product lines. Competes head-to-head with LegWorks for prosthetist mindshare and reimbursement across K1–K4 amputees.
• Fillauer: U.S. prosthetics manufacturer with a strong 4-bar polycentric knee portfolio (e.g., AllPro, RoughRider). Closest direct competitor in the non-hydraulic/polycentric knee segment where LegWorks' All-Terrain Knee competes on price and performance.
• Ottobock: Global market leader in prosthetic knees (C-Leg, Genium) and other orthopedic devices. Directly comparable product category (prosthetic knee joints) and customer base (prosthetists and amputees), but at a much larger scale and broader portfolio including microprocessor-controlled knees.
• DAW Industries: Smaller U.S. prosthetics manufacturer focused on mechanical knee joints. Comparable niche positioning versus microprocessor incumbents and overlap with LegWorks on price-sensitive and developing-world channels.
• College Park Industries: U.S. prosthetic component maker with mechanical and hydraulic knee lines marketed to prosthetists. Comparable in size, product category, and channel strategy to LegWorks, serving overlapping K-level patient segments.
• Proteor: French prosthetics and orthotics manufacturer with global distribution and a broad knee product range. Comparable in offering mechanical knees to amputees internationally, including in markets served by LegWorks' mobility partnerships.
• Streifeneder: German manufacturer of prosthetic components and orthotics, including a range of mechanical knee joints. Directly comparable product family and international prosthetics-channel distribution model.
• Blatchford: UK-based prosthetics manufacturer with a range of mechanical and microprocessor knees (Linx, Orion). Direct competitor in the prosthetic knee category, particularly in international markets where LegWorks' developing-world distributors operate.

Regional players

• Endolite (Blatchford India): Regional prosthetics manufacturer with strong presence in India and South Asia, including affordable mechanical knee lines. Comparable to LegWorks' mission of serving amputees in cost-sensitive markets across developing regions.

Broad incumbents

• Hanger Clinic: Largest U.S. provider of orthotic and prosthetic patient-care services, fitting devices from multiple manufacturers. Overlaps with LegWorks as a downstream channel and end-customer relationship, but operates as a clinical services provider rather than a device manufacturer.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/LegWorksGlobal
• YouTubeyoutube.com/channel/UC5QQagEoT1L6GzVbhD1KVAA
• Facebookfacebook.com/legworksglobal
• Instagraminstagram.com/legworksglobal
• LinkedInlinkedin.com/company/10814750

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds4 records

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about LegWorks