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Proteus Motion
Building a new category of intelligent fitness and rehab technology to maximize human performance
About Proteus Motion
Proteus Motion Inc. is a technology company operating in the fitness and rehabilitation sectors, founded in 2011 by Sam Miller. Miller's background as an athletic trainer and his personal experience with the limitations of traditional strength training equipment fueled the company's direction. He identified a gap in the market for a system that could adequately measure strength and power across all directions of movement, which existing free weights and cable machines failed to address effectively. This observation led to the development of the company's core product, the Proteus system.
The Proteus system is a hardware and software solution designed for professional sports teams, physical therapy clinics, and high-end fitness facilities. At its core is a piece of equipment featuring an electromagnetic resistance mechanism that provides consistent resistance throughout a three-dimensional range of motion. This patented technology, referred to as 3D Resistance™, allows for the measurement of athletic performance with data comparable to an MRI's diagnostic capabilities, but for movement. The system captures performance data, providing insights into power, acceleration, and endurance for any movement pattern. This data is then analyzed by the accompanying software, offering trainers and clinicians objective metrics to personalize training programs, monitor progress, and guide rehabilitation protocols. A key feature is the "power report," a comprehensive assessment that benchmarks an individual's strength and power against a database of peers, helping to identify muscular imbalances and weaknesses that could lead to injury.
The company's business model centers on the sale of this high-performance equipment. In 2021, Proteus Motion reported a significant milestone, securing $8.5 million in a Series A funding round. This capital infusion was earmarked for expanding manufacturing capabilities and scaling the company's commercial operations. The funding round attracted notable investors from the sports world, including current and former professional athletes, which serves as a strong endorsement of the product's application and potential within its target market.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2016
- Headquarters
- New York City, United States
- Employees
- 22
- Open positions
- None listed
- Dealroom signal
- 60.8/100
- Industry
- Health, Sports
- Sub-industry
- Medical Devices
- Sector
- Health Tech & Medtech, Rehabilitation, Tech for Patients, Hard Tech, DT and LS, science-based
- Technology
- 3D Technology, Deep Tech
- Business model
- SaaS
- Client focus
- b2c
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| EARLY VCOther financing | Oct 2025 | $2.8M | $43M | Acies Investments · Sandy Ogg · 412 Venture Fund · HBSE Ventures | ↗ |
| SERIES AOther financing | Jul 2022 | $8.5M | $34M | Blake Griffin Enterprises · Matthew Dellavedova · 412 Venture Fund · HBSE Ventures | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Proteus Motion is 12K monthly website visits, up 9.1% over the last three months. Proteus Motion's team declined 8.3% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
HBSE Ventures
Series A10 investors entered at this stage
Harris Blitzer Sports & Entertainment
Hospital for Special Surgery
Acies Investments- BEBlake Griffin Enterprises
- MDMatthew Dellavedova
412 Venture Fund
Monozukuri Ventures
Harrison Co.- JLJon Lester
- SOSandy Ogg
Other known investors5 additional known investors
- DSDavid Stern
Dick Boyce
Geoffrey Bernstein
Liebenthal Ventures
Sahil Bloom
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Proteus Motion on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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