St & G

What St & G does

ST&G USA Corporation, founded in 2007 and headquartered in Brea, California, manufactures and distributes a comprehensive catalog of prosthetic and orthotic components for the medical community. The company's product portfolio spans prosthetic knees (hydraulic, pneumatic, and mechanical designs including the proprietary GeoLock and Motion Control series), prosthetic feet (SACH, dynamic response, and energy-returning variants), hip joints, modular connection components, suspension systems (liners, locks, valves, sleeves), pediatric-specific components, and orthotic devices including ankle joints and spinal braces. ST&G also distributes osseointegration connectors (LUCI Connector from OTN and HERMLE Connector from MAC Surgical) on an exclusive basis for the US market.

The company's core proprietary technology is the INESS (Innovative Edge Silicone System), a patented rolled silicone socket fabrication method (US Patent No. 12,427,043 B2) developed in partnership with French firm Trinytec. INESS underpins the ELM (Extreme Limb Makeover) offering, which combines central fabrication services with a 3-day hands-on training program delivering 20 CEUs. Manufacturing occurs at the company's ISO 13485:2016 certified California facility, which also supports OEM manufacturing and product development for partner brands.

Revenue is generated primarily through B2B hardware sales of prosthetic and orthotic components to prosthetists, orthotists, and O&P clinics, supplemented by central fabrication services and kit-pricing programs (15% off knees/liner/feet, 10% off locks/components for bundled purchases). The go-to-market combines direct sales and a B2B e-commerce account system for US customers with a global distributor network covering 35+ countries across North America, South America, Europe, Asia, the Middle East, and Oceania. Marketing relies on industry trade shows (COPA, AAOP, Hanger LIVE), CE-eligible webinars, the ELM training program, email newsletters, and a digital catalog available in English and Spanish.

Name

St & G

Legal name

ST&G USA Corporation

Website

https://stngco.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

ST&G USA Corporation, founded in 2007 and headquartered in Brea, California, manufactures and distributes prosthetic and orthotic components — including knees, feet, modular parts, and osseointegration connectors — to prosthetists, orthotists, and clinics across 35+ countries.

Ownership category

akta.pro rank

Product category

Prosthetics & Orthotics Manufacturing

NAICS

Surgical Appliance and Supplies Manufacturing (339113), Medical Equipment and Supplies Manufacturing (3391)

SIC

Orthopedic, Prosthetic & Surgical Appliances & Supplies (3842), Wholesale-Medical, Dental & Hospital Equipment & Supplies (5047)

akta.pro primary industry

Prosthetic Components & Rehabilitation Accessories (Liners, Feet, Knees, Sockets) (HLAHAMAD)

akta.pro secondary industries

Orthopedic Joint Reconstruction Implants (Hip/Knee/Shoulder/Elbow/Ankle) (HLAHAEAA), Orthotics & Bracing (AFO/KAFO, Spinal, Soft Goods Supports) (HLAHAMAC)

Keywords

• Prosthetic components
• Orthotic devices
• Prosthetic knees
• Osseointegration connectors
• Silicone socket technology

Headquarters

HQ city

Causeway Bay

HQ country

Hong Kong SAR China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Manufacturing and Distribution of Prosthetic Components: ST&G manufactures and distributes a comprehensive catalog of prosthetic and orthotic components. Revenue generated through product sales to prosthetists, orthotists, and clinics. Products include knee joints (hydraulic, pneumatic, mechanical), prosthetic feet, modular components, suspension systems, and pediatric products.
2. OEM and Product Development: The company offers OEM manufacturing capabilities and product development services, indicating custom manufacturing relationships with other brands or healthcare companies.
3. INESS/ELM Technology: Provides INESS (Innovative Edge Silicone System) technology through partnership with Trinytec. Offers both in-house fabrication training (ELM) and central fabrication services for rolled silicone socket fabrication.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

ST&G develops, manufactures, and distributes prosthetic and orthotic components for prosthetists, orthotists, and O&P clinics. The product catalog spans hydraulic, pneumatic, and mechanical knee joints; prosthetic feet; modular connection components; suspension systems; osseointegration connectors; pediatric prosthetic lines; orthotic ankle joints and spinal braces; and fabrication materials. The company also licenses the patented INESS silicone socket technology and provides ELM central fabrication services for clinics.

Product overview

ST&G USA Corporation is a prosthetics and orthotics manufacturer and distributor based in Brea, California, serving the medical community for over 17 years. The company's product portfolio is organized into several core lines: (1) Prosthetics including knees (hydraulic, pneumatic, mechanical variants such as the GeoLock, Motion Control Knee, Sensor Knee, Swan Knee, Dolphin Knee, and polycentric designs), hip joints, feet (Endurance, Prime, Next Step, Symes, ToeFlex, Hydro Step), modular components (tube clamps, pyramid receivers, prong connectors), osseointegration connectors (LUCI and HERMLE brands), suspension systems (liners, locks, valves), pediatric components, and cosmesis; (2) Orthotics including ankle joints (Meridian, RidgeFlex), carbon AFOs, and LSO braces; (3) Materials including casting tapes, braids, and fabrication supplies; (4) ELM (Extreme Limb Makeover) socket technology based on INESS silicone system. The company operates as both a manufacturer and exclusive US distributor for certain products, with central fabrication services available.

Differentiator

Problem solved

Functional benefit

Brands

• INESS (Innovative Edge Silicone System): Patented silicone socket technology for comfortable prosthetic devices, developed by Stephane Paillet of Trinytec and distributed by ST&G in the USA
• ELM (Extreme Limb Makeover)
• Eclipse Suspension Sleeve

Products and services

• Knee Products Prosthetic knee joints including hydraulic, pneumatic, and mechanical designs for various activity levels (K1-K4). Includes single-axis, polycentric 4-bar, and 5-bar configurations with manual locking options. Sold to prosthetists and O&P clinics.
• Hip Joint Prosthetic hip joints with internal extension assist and 4-bar linkage options for transfemoral amputees. Sold to prosthetists and O&P clinics.
• Foot Products Prosthetic feet including SACH, dynamic response, energy-returning, and activity-specific designs. Includes Prime, Endurance, Next Step, Symes, ToeFlex, and Hydro Step product lines. Sold to prosthetists and O&P clinics.
• Modular Components Extensive range of prosthetic connection components including tube clamps, pyramid receivers, 4-hole and 3-prong connectors, 4-prong connectors, threaded adapters, double-ended adapters, pylons, and heavy-duty systems rated up to 500lbs. Sold to prosthetists and O&P clinics.
• Suspension Systems Prosthetic suspension solutions including liners (Adapt, Agile, Parasil, MAGLiner), locks (clutch, shuttle, maglock), valves, sleeves, and volume control systems. Sold to prosthetists and O&P clinics.
• Pediatric Products Child-sized prosthetic components including pediatric knees, tube clamps, 4-ear connectors, and SACH foot adapters designed for smaller anatomies. Sold to prosthetists serving pediatric amputees.
• Cosmesis Cosmetic prosthetic covers including EZ Cover, foam covers for above-knee and below-knee applications. Sold to prosthetists and O&P clinics.
• Orthotics Orthotic devices including Meridian and RidgeFlex ankle joints, In Step carbon AFOs (anterior and posterior lateral), Avalon, Balboa, and Capri LSO braces. Sold to orthotists and orthotic clinics.
• Materials Prosthetic fabrication materials including C-Form and R-Form casting tapes, PVA bags, NSP and Carbon braids, 3D tapes, and uni-directional carbon tapes. Sold to prosthetists and O&P clinics.
• Tools & Accessories Fabrication and adjustment tools including Tri-Head Hex Wrench, Dial Lock Strap Systems, Ratcheting Buckles, UniGrip sheets, and EZ Cutter. Sold to prosthetists and orthotists.
• High Activity Sport Products Activity-specific prosthetic components including spike soles and foot covers for athletic applications. Sold to prosthetists serving active amputees.
• Osseointegration Products (LUCI and HERMLE Connectors) Exclusive USA distribution of LUCI Connector (OTN) and HERMLE Connector (MAC Surgical) for bone-anchored prosthetics, including HEX and Clamp connector variants for transfemoral and transtibial applications. Sold to osseointegration surgical centers and specialized clinics.
• INESS (Innovative Edge Silicone System) Patented platinum-cured medical grade silicone socket technology for comfortable prosthetic fit, licensed from Trinytec. Creates integrated comfortable prosthetic socket design using combination of silicone and resin. Sold to prosthetists and O&P clinics as a pre-rolled silicone kit.
• ELM (Extreme Limb Makeover) In-house silicone socket fabrication system allowing clinics to create rolled silicone prosthetic sockets. Available via in-house fabrication training (3-day hands-on course with 20 CEU credits) or central fabrication service. Sold to prosthetists and O&P clinics.
• GeoLock Hydraulic Knee (1336) Geometric locking 4-bar hydraulic knee with magnesium aluminum alloy construction, providing solid stance control and smooth swing phase transitions. Features pyramid mount and 30mm distal tube clamp. Sold to prosthetists and O&P clinics.
• Hydraulic Motion Control Knee (M0790) Advanced hydraulic knee with independent stance and swing control, 4 selectable modes (cycling, walk, constant yield, lock), and automatic yielding based on knee position during walking. Sold to prosthetists and O&P clinics.
• Eclipse Suspension Sleeve High-durability suspension sleeve with Parylene coating and dual-sleeve design providing up to 120-day warranty. Platinum cured medical grade silicone reduces skin shear. Sold to prosthetists and O&P clinics.
• Endurance Contour Foot

Quantifiable outcome

• Over 17 years serving the medical community
• +1 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• TrinyteccoreStrategic or Co-development PartnerPartnership with French company Trinytec to bring INESS (Innovative Edge Silicone System) technology to the USA market. Trinytec developed the patented rolled silicone technology over 8 years of research. ST&G distributes INESS as a pre-rolled silicone kit enabling any clinic to perform Extreme Limb Makeover (ELM) procedures.
• OTN (LUCI Connector)coreChannel Partner/ Reseller/ DistributorST&G is the exclusive Osseointegration distributor for the USA market for the LUCI Connector product line (OTN).
• MAC Surgical (HERMLE Connector)coreChannel Partner/ Reseller/ DistributorST&G is the exclusive Osseointegration distributor for the USA market for the HERMLE Connector product line (MAC Surgical).

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Össur: Iceland-based global leader in prosthetics (knees, feet, liners) and orthotics; directly competes with ST&G across hydraulic/pneumatic knees, dynamic response feet, and silicone liner technologies.
• Ottobock: Global market leader in prosthetics and orthotics with extensive product portfolio across knees, feet, liners, and orthotic braces; comparable as the dominant incumbent against which ST&G competes across virtually every product line.
• Streifeneder ortho.production: European prosthetics and orthotics manufacturer and distributor with broad P&O component catalog and fabrication materials; comparable to ST&G in product breadth and distributor-driven international reach.

Regional players

• RSL Steeper: UK-based prosthetics and orthotics manufacturer with broad catalog of upper/lower limb components and silicone socket solutions; comparable to ST&G in prosthetic component manufacturing and orthotic device offerings, primarily serving UK/European markets.

Direct peers

• Fillauer: Mid-sized US-based manufacturer of prosthetic and orthotic components including feet, knees, and modular hardware; comparable to ST&G in product breadth, target customers (prosthetists/orthotists), and ISO-certified manufacturing model.
• College Park Industries: US manufacturer specializing in prosthetic feet and lower-limb components with a similar ISO 13485 manufacturing footprint; competes with ST&G in dynamic response feet and modular components sold through prosthetists.
• Becker Orthopedic: US manufacturer of orthopedic and prosthetic components including ankle joints, knee joints, and fabrication materials; overlaps with ST&G's orthotics ankle joint line and modular component offerings for O&P clinics.
• WillowWood: US-based prosthetics manufacturer with broad catalog of liners, feet, and modular components; closely comparable to ST&G in B2B sales model to O&P clinicians and emphasis on suspension and socket interface technologies.
• ALPS South (Prosthetic Liners): US manufacturer of prosthetic liners, suspension sleeves, and locking systems; directly comparable to ST&G's suspension systems product line and silicone/elastomer liner offerings sold to prosthetists.

Emerging players

• Trinytec: French developer of the patented INESS silicone socket technology licensed and distributed by ST&G in the USA; comparable as the underlying R&D partner whose technology is integral to ST&G's differentiated socket offering.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/stngcorporation

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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 St & G