Leo Cancer Care
Leo Cancer Care develops upright radiation therapy systems that eliminate the need for gantries, aiming to improve treatment quality and accessibility. The company has raised $130M and employs 128 people.
The growth story
Leo Cancer Care grew from 20 to 128 employees between 2021 and 2026, raising $130M along the way, most recently a Series D in July 2026.
About
Leo Cancer Care makes radiation therapy systems that treat patients in an upright position rather than lying down, removing the need for large, expensive gantry equipment. Their approach targets both improved patient experience and broader access to cancer treatment globally.
The company has raised $130M in funding, most recently in a Series D round in 2026. With 128 employees, it draws heavily on radiation therapy expertise, with leadership and staff bringing over 100 years of industry experience.
Founders and leadership
Engineering is the largest function at Leo Cancer Care, accounting for 38 of its 128 employees. The company is led by a team with extensive radiation therapy expertise, focused on innovating cancer treatment delivery.
The Leo Cancer Care org chart
Stephen Towe (CEO) leads 41 mapped leaders with 7 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 37 (+28% YoY), Operations 18 (+29% YoY), Business Development 13 (0% YoY), Information Technology 13 (+44% YoY), Sales 7 (+17% YoY), Research 6 (+20% YoY).
Talent flow
Leo Cancer Care recruits heavily from major radiation therapy equipment makers, with Elekta (20 hires), Accuray (15), and Varian (8) as top sources. Employees have a median tenure of 2 years, with some moving to roles at Google, Macmillan Cancer Support, and Smith+Nephew.
Most common previous employers of Leo Cancer Care staff: Elekta (20), Accuray (15), Varian (8), TomoTherapy (6), Philips (6), GE HealthCare (4). Former Leo Cancer Care employees most often moved to Google (1), Mimetic - MedTech Foundry (1), Genie AI (1), Macmillan Cancer Support (1), Smith+Nephew (1), Oncology (1).
Alumni worth knowing
Hiring now
Web traffic
Traffic mix: 0% direct, 0% search, 0% social, 0% paid.
What this company is made of
Most common skills at Leo Cancer Care: Project Management (47), Medical Devices (45), Microsoft Office (37), Leadership (35), Communication (31), Product Development (30), Engineering (27), Medical Imaging (26).
Where the team actually sits
Leo Cancer Care people are concentrated in England, United Kingdom (32), Wisconsin, United States (27), United Kingdom (9), Greater Madison Area (6).
Search footprint
Leo Cancer Care attracts about 260 organic search visits a month, traffic worth roughly $1K a month if bought through ads. It gained 45 ranking keywords and lost 39 in the last period.
What employees say
- Compensation
- 3.40 / 5
- Career opportunities
- 3.50 / 5
- Senior management
- 3.30 / 5
- Work-life balance
- 3.20 / 5
Frequently asked
Leo Cancer Care has 128 employees as of September 2026.
Leo Cancer Care has raised $130M in total, most recently a Series D round in July 2026.
Stephen Towe (CEO) sits at the top of Leo Cancer Care's reporting structure, with 7 direct reports.
The most common previous employers of current Leo Cancer Care staff are Elekta (20 people), Accuray (15 people), Varian (8 people).
Former Leo Cancer Care employees most often move to Google (1), Mimetic - MedTech Foundry (1), Genie AI (1).
Leo Cancer Care attracts about 260 organic search visits a month, worth roughly $1K a month in equivalent ad spend.
The most common skills among Leo Cancer Care staff are Project Management, Medical Devices, Microsoft Office, Leadership, Communication.
Leo Cancer Care staff are concentrated in England, United Kingdom (32), Wisconsin, United States (27), United Kingdom (9).
Leo Cancer Care has about 37 people in Engineering, up 28% over the past year, as of September 2026.
Leo Cancer Care has about 18 people in Operations, up 29% over the past year, as of September 2026.
Computed from 96 current and 37 former Leo Cancer Care profiles, as of September 2026. Source: Crustdata.
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