Gradian Health Systems is a nonprofit medical device company that equips low-resource hospitals to perform safe surgery. We manufacture, sell, and distribute equipment that we support with clinical and technical training and ongoing customer service to ensure that hospitals in developing countries can deliver high-quality surgical and anesthesia care. Our core technology -- the Universal Anaesthesia Machine (UAM) -- is a CE-certified anesthesia workstation designed to function without electricity and oxygen, helping its users operate with confidence regardless of their environment.

Gradian was founded in 2011 by the Nick Simons Foundation, a family foundation that supports initiatives to improve access to healthcare around the world. We began as an enterprise to distribute the UAM, which was invented in Malawi and refined by Gradian and our manufacturing partner, OES Medical. In 2014, we spun out as an independent nonprofit, and have since expanded our distribution network to more than 200 operating rooms all over the world. Today, we work closely with hospitals, governments, NGOs, foundations, professional societies, and other organizations to help improve global surgery.

About Us

Our Team

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Stephen Rudy

Chief Executive Officer

As CEO, Steve directs Gradian’s business and strategic development, applying years of industry experience in medical technology to the field of global surgery. He has grown Gradian from a private research project to an international presence in safe surgery and leads a team expanding operations in more than 200 hospitals across 22 countries worldwide.

Steve has worked in medical technology since 1984, including CEO and executive positions in marketing, sales, and business development. He has founded and led start-ups from conception through venture financing, acquisition, and IPO. He is also a co-inventor on 10 US and international patents.

Steve holds an MBA from the Stanford Graduate School of Business and a BA from the Johns Hopkins University.

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Erica Frenkel

Chief Operating Officer

Erica helped launch Gradian and directs its growth strategy, key partnerships, and overall communications. As COO, she has built Gradian’s distribution, service, and training networks in more than two-dozen countries. Erica brings deep global health expertise to the company’s operations and market development.

Prior to Gradian, Erica worked on global health initiatives in the public and private sectors. She held positions with the Clinton Health Access Initiative in Liberia, consulted to Merck and the Wellcome Trust on vaccine-related public-private partnerships, and managed the Global Media AIDS Initiative for the Kaiser Family Foundation.

Erica is a founding board member of the Global Alliance for Surgery, Obstetrics, Trauma and Anaesthesia Care (the G4 Alliance). She holds an MPA from Princeton University’s Woodrow Wilson School and a BA from the University of Pennsylvania.

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Lina Sayed

Vice President, Market Strategy

As Vice President of Market Strategy, Lina drives Gradian’s work in existing and new country markets, building local distribution networks, managing product sales, and overseeing training activities.

Lina’s career spans the global health and financial sectors. She spent several years working in JP Morgan Chase’s nonprofit/healthcare group and more recently consulted for several companies in the fields of diagnostics and maternal health, specifically focused on products designed for low-resource settings.

Lina has an MBA from the MIT Sloan School of Management and a BA in Journalism and Mass Communications from New York University.

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Margaux Bellier

Director, Market Strategy

Based in Europe, Margaux focuses on cultivating markets in Francophone Africa and Southeast Asia. In these regions, she oversees the full spectrum of Gradian’s work — from market strategy to in-country distributor management to product training.

Margaux is a seasoned global development professional, with nearly a decade of experience managing marketing work, government tenders, supply chain processes, and medical equipment procurement. Most recently, she worked at the IDA Foundation, a leading European nonprofit supplier of essential medicines in low-income countries.

Margaux has a BA in European Business Law from Université Nancy 2 in France.

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David Ettl

Director, Market Strategy & Evaluation

David leads Gradian’s after-sales strategy across our markets, overseeing maintenance, service, and evaluation of our products in the field. Drawing on insights from this work, he also supports business development and distributor management in Gradian’s more mature markets.

Prior to Gradian, David spent 10 years in global public health, with a focus on research design, program management, and monitoring and evaluation. Most recently, he consulted for multinational pharmaceutical companies to support maternal health and non-communicable disease initiatives in Asia, Latin America, sub-Saharan Africa, and the Middle East.

David has lived and worked in both India and Tanzania. He holds an MPH from Columbia University’s Mailman School of Public Health and a BA in Global Studies from the University of California, Los Angeles (UCLA).

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Adam Lewis

Director, Communications & Marketing

Adam manages Gradian’s global communications and marketing efforts, including program and partnership development. He also leads the company’s advocacy work around safe surgery, anesthesia and medical equipment.

Adam joined Gradian after five years in global health consulting, working with organizations such as USAID, the Bill & Melinda Gates Foundation and Merck for Mothers, along with several social enterprises. His work has focused primarily on developing communications strategies, advocacy campaigns and thought leadership platforms in the area of maternal health.

Adam is also a freelance writer covering global health and social justice. His work has been featured in the Washington Post, Guardian, VICE and other news outlets. He holds a BA in English from Washington & Lee University.

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Moraa Gekonge-Muyeka

Logistics & Operations Manager

Moraa is Gradian’s gatekeeper for all things logistics. She facilitates shipments, coordinates installations, and manages operations with Gradian’s customers, distributors, and trainers.

Moraa joined Gradian after more than eight years in logistics and non-profit project management in the freight forwarding industry. She previously managed shipping and operations for Global Address Me, Inc. She also spearheaded community outreach and public health initiatives for various non-profit organizations in the New York metropolitan area.

Moraa holds an MA in International Relations and Diplomacy from Seton Hall University’s John C. Whitehead School of Diplomacy and a BA in Psychology from Utica College.

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Kandasi Griffiths

Associate, Market Strategy

Kandasi’s portfolio spans market research, managing trainings and equipment maintenance visits, maintaining communication with clinicians and technicians, and serving as a liaison for customer needs, especially in Francophone regions.

Prior to Gradian, Kandasi worked with nonprofits both in the US and internationally - as an international development contractor - and executed conferences for UN-partner organizations specializing in international education and global poverty reduction initiatives. She has managed operations and logistics for USAID-funded projects increasing public healthcare access and effectiveness in Afghanistan, Jordan, Tanzania, and Indonesia.

Kandasi hold a BA in Politics, specializing in International Relations, from Princeton University.

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Cullen Ross

Product Marketing Engineer

Cullen serves as Gradian’s in-house technical lead, supporting our products from manufacturing and installation through in-country training and service.

Before joining the Gradian team, Cullen worked to develop a number of novel medical devices and procedures, both in academia and in industry. He also has experience in international development, having helped start a hardware company in Ghana that creates food-processing tools for female entrepreneurs.

Cullen holds a BS in Mechanical Engineering from Olin College of Engineering.

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Tobias Geisler Mesevage

Communications Intern

Tobias works as Gradian’s Communications Intern, assisting in designing and implementing global marketing and communication strategies around Gradian's products and services.

Tobias joins Gradian with several years of experience interning and volunteering in the non-profit sector and local government. He has worked in communications with NGOs such as Girl Rising and We Read Together; assisted Assemblymember Shelley Mayer in constituent services; and most recently interned as a research analyst for the consulting firm International Advisory, Products and Systems (i-APS).

Tobias is a rising senior at Sarah Lawrence College. He is pursuing his BA in Economics and Politics.

Our Board

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James H. Simons, Ph.D.

James H. Simons, Ph.D., is chairman of the board of the Simons Foundation. Dr. Simons is also board chair and founder of Renaissance Technologies. Prior to his financial career, Dr. Simons served as chairman of the mathematics department at the State University of New York at Stony Brook, taught mathematics at the Massachusetts Institute of Technology and Harvard University, and was a cryptanalyst at the Institute for Defense Analyses in Princeton, New Jersey. Dr. Simons’ scientific work was in geometry and topology; his most influential work involved the discovery and application of certain measurements, now called Chern-Simons invariants, which have had wide use, particularly in theoretical physics. Dr. Simons holds a B.S. from the Massachusetts Institute of Technology and a Ph.D. from the University of California, Berkeley and won the American Mathematical Society’s Veblen Prize for his work in geometry in 1975. He is a trustee of the Stony Brook Foundation, Rockefeller University, Massachusetts Institute of Technology, Brookhaven National Laboratory, the Mathematical Sciences Research Institute and the Institute for Advanced Study, and a member of the American Academy of Arts and Sciences and the American Philosophical Society.

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Marilyn H. Simons, Ph.D.

Marilyn Hawrys Simons is the President of the Simons Foundation, an organization whose primary mission is to support advanced research in mathematics and science. In addition to her work at the Foundation, Ms. Simons actively supports numerous not-for-profit organizations.  She is currently President of the Board of the LearningSpring School, a New York City based school for children diagnosed on the autism spectrum. Ms. Simons also leads the Committee on Trustees at the East Harlem Tutorial Program, an after school program in East Harlem and is serving as the Vice President of the Board of the Cold Spring Harbor Laboratory, an outstanding research facility specializing in molecular biology and genetics. She received a B.A. and Ph.D. in Economics from S.U.N.Y. at Stony Brook.

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David Ellis Acker

David founded several medical device companies including Biosense, which was acquired by Johnson & Johnson in 1997. He was also the inventor of the core miniature location sensing technology around which the company’s three cardiology and image-guided surgery product lines were based. David is the recipient of 32 US Patents for medical devices in the fields of Cardiac and Neurosurgical minimally invasive surgery. He Vice Chairs the Stony Brook Foundation, serves on the Stony Brook University Medical Center Quality Assessment Review Board, serves on the board of the Long Island High Technology Incubator and is the owner of Harmony Vineyards. David holds a B.S. from Stony Brook University and an honorary doctorate from the same institution.

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Dr. Nils Daulaire

Dr. Daulaire has an accomplished career as a global health practitioner and policy maker with over three decades of primary health and health policy experience in Africa, Nepal, Asia and Latin America where he directed multiple pioneering maternal and child heath research projects.  He was Deputy Assistant Administrator for Policy and Senior International Health Advisor for USAID, President and CEO of the Global Health Council, and served in the Obama administration as Assistant Secretary of Health for Global Affairs and as the US representative to the Executive Board of the World Health Organization.  Dr. Daulaire has been elected as a member of the U.S. National Academy of Medicine and the Council on Foreign Relations.  He has been Professor of Global Health at the University of Washington and Professor of Community and Family Medicine at Dartmouth.  Nils earned his BA and MD degrees from Harvard University and an MPH from the Johns Hopkins School of Public Health and is Board certified in Preventive Medicine and Public Health.

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Stephen Rudy

As CEO, Steve directs Gradian’s business and strategic development, applying years of industry experience in medical technology to the field of global surgery. He has grown Gradian from a private research project to an international presence in safe surgery and leads a team expanding operations in more than 25 countries and hundreds of hospitals worldwide.

Steve has worked in medical technology since 1984, including CEO and executive positions in marketing, sales, and business development. He has founded and led start-ups from conception through venture financing, acquisition, and IPO. He is also a co-inventor on 10 US and international patents.

Steve holds an MBA from the Stanford Graduate School of Business and a BA from the Johns Hopkins University.

Careers

We’re always interested in hearing from talented applicants passionate about global health and medical technology. Let us know if you’re one of them.

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Media Hub

Over the years, Gradian has been highlighted in a range of news stories, journal articles and studies. We’ve also amassed a library of video footage and photography showcasing our work in action.

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