Envision • Design • Realize
Services
Building a proton therapy center is complex work that requires the right team. We’ll help you assemble that team, bringing our expertise to ensure your project’s success.
Design
We design proton therapy centers that seamlessly integrate hundred-ton particle accelerators with 14-foot concrete shielding, creating healing environments for patients and efficient workflows for staff.
Project Management
We oversee your project from initial planning through first patient treatment, coordinating specialized teams and managing the complex 3-5 year timeline these facilities demand.
Owner Representation
We advocate for your interests throughout the development process, ensuring that equipment selections, site decisions, and budget allocations align with your long-term operational goals.
Subject Matter Expert Advisory
As the world's leading proton therapy architects, we guide your decisions with experience that saves time, money, and prevents costly mistakes.
Decomissioning & Dismantling
We extract and replace massive proton equipment during facility upgrades, managing the logistics of removing hundred-ton systems through precisely planned access routes.
Feasibility Studies
We analyze your site conditions, financial parameters, and operational requirements to determine whether your proton therapy center vision is buildable and sustainable.
Design
We design proton therapy centers that seamlessly integrate hundred-ton particle accelerators with 14-foot concrete shielding, creating healing environments for patients and efficient workflows for staff.
Project Management
We oversee your project from initial planning through first patient treatment, coordinating specialized teams and managing the complex 3-5 year timeline these facilities demand.
Owner Representation
We advocate for your interests throughout the development process, ensuring that equipment selections, site decisions, and budget allocations align with your long-term operational goals.
Subject Matter Expert Advisory
As the world's leading proton therapy architects, we guide your decisions with experience that saves time, money, and prevents costly mistakes.
Decommissioning & Dismantling
We extract and replace massive proton equipment during facility upgrades, managing the logistics of removing hundred-ton systems through precisely planned access routes.
Feasibility Studies
We analyze your site conditions, financial parameters, and operational requirements to determine whether your proton therapy center vision is buildable and sustainable.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Projects
About Us
Jessen Proton Therapy was founded in 2017 by John Jessen to help people execute Proton Therapy projects worldwide.
With dozens of completed Proton Therapy projects worldwide, Jessen brings decades of experience coordinating and implementing global projects.
From affordable compact solutions to multi-room systems, new builds to major upgrades, Jessen Proton brings hands-on know-how to the process, ensuring success on every project.
Recognized as a trusted adviser across the proton therapy community, Jessen Proton works with you and your team to develop and meet project schedules, budgets, and quality.
Leadership
John Jessen, AIA, has over 40 years of experience helping execute proton therapy projects worldwide. In 1994, he started and ran VOA (now Stantec) Proton Therapy Practice in Washington, DC, and over many years, he built the largest proton design team in the world.
As a licensed architect, he is an expert at assembling and leading proton teams while working with clients to achieve optimum results. He’s a hands-on team leader and collaborator. John works as an Architect, Project Manager, or SME Expert, augmenting your local team.
He led the following proton therapy projects:
- UCSF
- Mass General Hospital Upgrade
- Froedtert/Med College of Wisconsin
- Baptist Health South Florida
- MD Anderson
- New York Proton Center/MSK
- Johns Hopkins Sibley
- Hefei China Heavy Ion
- Hampton University
- Scott Hamilton Provision
- Emory University
- University of Texas Southwest
- SAH Muscat Oman
- SAH Qatar
- Delray Beach Medical Center
- Provision Knoxville
- Atrium Health
- Thomas Jefferson University
- UCI
- Duke
- INOVA Schar Cancer Institute
- Banner Health
- SAH Bahrain
- Kettering Hospital
- OSF St Francis
- Boldrini Children’s Hospital
- Northern Illinois University
- Jupiter Medical City
- Lioness Light & Heavy Ion
- University of Miami
- Stanford
- SUNY Upstate
Blog
Read the latest stories from our blog.
JESSEN PROTON
MAJOR MILESTONES
2005
Hampton University Proton Center Cancer institute
2005
2010
Emory Proton Therapy Center
2013
Miami Cancer Institute
2014
Johns Hopkins Proton Therapy Center
2015
New York Proton Center
2015
HEFEI ION Medical Center
2016
MD Anderson Proton Center 2
2016
2016
University of Alabama
2017
UCSF Proton Therapy Center
2017
2020
Atrum Health Proton Center
2022
Proton Center Upgrade
Mass General Hospital
2022
2025
Duke University
Contact Us
"*" indicates required fields