Meet the Innovators

We built your living platform for driving Insights from clinical evidence.
Managing Clinical data & driving Insights for:
  • Research & Development
  • Clinical Trial planning
  • Regulatory Submissions
  • Medical Publishing
  • Lifecycle Management


Kevin Kallmes

Kevin Kallmes

Chief Executive Officer, Cofounder

Kevin is a serial entrepreneur with two previous successes. In 2015, he and his brother founded a research consultancy that quickly grew to over 20 researchers covering every stage of the product lifecycle. In 2018, he spun a vascular device startup out of the Mayo Clinic and drove it from prototype to commercialization and acquisition. Based on the needs he found in both ventures, Kevin identified the key unmet need for an AI-enhanced platform for gathering and presenting clinical findings.

Previously, Kevin was educated at Duke Law School before interning at the National Institutes of Health with a focus on data management. He also holds a Masters degree in Bioethics and Science Policy, and has published extensively on topics ranging from publishing ethics to novel treatments for vascular diseases. On top of leading Nested Knowledge, Kevin mentors medical entrepreneurs, including assisting with more than $20M in non-dilutive NIH funding for driving novel innovations to market.
Keith Kallmes

Keith Kallmes

President, Cofounder

Keith cofounded a research consultancy with his brother in 2015 and led business development, landing contracts with the majority of leading vascular companies in the US within 3 years. Then, he led sales for a Mayo Clinic spinout, including establishing key accounts at dozens of endovascular-capable centers, followed by a successful market launch and exit. At Nested Knowledge, Keith is the key channel to institutional users and partners, ensuring that those in greatest need of evidence management solutions are not only able to improve their tech-enabled services but also drive growth in their own business development.

Previously, after studying economics at the University of Minnesota, Keith interned in science policy at the Cato Institute. Then, concurrently with founding his own first startup, Keith became a Director of the Startup Resource Center, a virtual service dedicated to matching medical startups with key suppliers, and an advisor to multiple tech-focused accelerators. Keith also leads fundraising, with a track record of over $6M raised from angels, venture capital, and physicians.
Karl Holub

Karl Holub

Chief Technology Officer, Cofounder

Karl leads product development, including data structures, AI models, and visualizations at Nested Knowledge. His dual background in computer science and statistics make him the ideal data scientist and development leader for a data-centric platform. Before Nested Knowledge, Karl was a Senior Data Scientist at TripAdvisor, where he led ad-rank on a billion-dollar platform, with additional experience working for Dell Computers.

In addition to leading product development, Karl is active in the open-source statistics space, with his algorithm shukra achieving thousands of downloads per month. In his free time, Karl serves as the web developer for charities in the developing world.
Stephen Mead

Stephen Mead

Chief Software Engineer, Cofounder

Stephen is a mathematician, full-stack developer, and cyber-security researcher. Prior to Nested Knowledge, he worked for the Department of Defense examining the impact of probabilistic processing on compute speed, accuracy, and power efficiency. These findings were then applied to multi-precision libraries to improve performance in cryptography. At Nested Knowledge he implements code across the entire platform. His full stack work includes React, Node.JS, PostgreSQL, and Python micro services. When he's multitasking, he enjoys alpine skiing.

Directors and Advisors

Dheerendra Kommala

Dr. Dheerendra Kommala

Board Member and Chief Medical Officer of the ECRI Institute

Dr. Kommala is a physician, pharmaceutical executive, and research director by background. Trained as a nephrologist, Dr. Kommala has served as Chief Medical Officer of ConvaTec, Associate Medical Director at Abbott Laboratories, and Vice President of Global Medical Affairs at Baxter.

Currently, Dr. Kommala leads a team of 70+ medical researchers, librarians, and statisticians at the ECRI Institute, in which role he manages strategic relationships and oversees patient safety research. Additionally, he supports the collaboration between ECRI and Nested Knowledge to develop features that represent best scientific practices.
Anthony Coniglio

Dr. Anthony Coniglio

Advisor and President of OPUS Pharma Consulting

Dr. Coniglio has over 30 years of experience in commercial strategy and business development at Bristol Myers Squibb, Pharmacia, Antidote Therapeutics, and Medpointe. In addition, he is the founder and President of OPUS Pharma Consulting, which has advised on business development, portfolio development, and commercial and market strategy to leading pharmaceutical brands for over fourteen years.

Dr. Coniglio is a key advisor on the unmet needs Nested Knowledge can address, as well as a channel to the research and consulting groups that often manage clinical evidence in collaboration with pharma companies.
Julia Brodsky

Dr. Julia Brodsky

Advisor and Vice President of Strategic Data Products at Novartis Pharmaceuticals

Dr. Brodsky has over 20 years of experience centered on the pharmaceutical industry, with a special focus on data innovations and digital transformation. She is currently Vice President of Strategic Data Products at Novartis US Oncology, leading a team responsible for driving data innovations to accelerate digital transformation and leveraging data as a strategic asset. She also has experience in Market Access and Analytics within Novartis, giving her both the insight into the pressing need for better evidence management platforms and the experience to integrate transformative platforms across large organizations.

Before Novartis, Dr. Brodsky served on several management teams, including AT&T Labs, Sanofi, Organon, and Symphony Health Solutions. Along with her education– she holds a PhD and Masters degree in Statistics from NYU, as well as a Bachelor’s in Computer Science–these experiences gave her deep expertise in data strategy, data enablement, predictive and descriptive analytics across pharmaceutical development cycle, cloud-based infrastructure, and tech-enabled organizational growth and execution. She has been an appointed National Pharmaceutical Council Board member to represent Novartis, and served as an Pharmaceutical Management Science Association Elected Board Member.
Tomas Philipson

Dr. Tomas Philipson

Advisor and Cofounder of PRECISIONheor

Dr. Philipson has had incredible success in the field of health economics and public policy: cofounding Precision Health Economics, working for several administrations in The Whitehouse, and receiving numerous national and international awards.

Born and raised in Sweden, Tomas received an undergraduate degree in mathematics at Uppsala University before arriving in the US to obtain his MA and PhD in economics from the Wharton School at the University of Pennsylvania. Now as the Daniel Levin Professor of Public Policy Studies Emeritus at the University of Chicago Harris School of Public Policy, his research focus continues to be within health economics and we are lucky to gain his expertise and HEOR insight in the software.

Our Team

Kathryn Cowie

Kathryn Cowie

Chief Operating Officer

Kathryn oversees day-to-day business operations, including billing, budgeting, contracts and compliance. Kathryn builds and maintains systems to track business and financial data and reports key business metrics. She ensures Nested Knowledge manages risks, remaining on top of compliance requirements.

Prior to Nested Knowledge, Kathryn worked in health economics at Biohaven Pharmaceuticals, where she summarized drug value and cost-effectiveness. Her previous experiences include health economics research at the University of Pennsylvania and substance use disorder research at the National Institutes of Health. Kathryn studied neuroscience and economics at Wake Forest University. Outside of work, Kathryn is a member of the Young Adult Rare Representatives, a rare disease policy advocacy group. She enjoys boxing.
Jeffrey Johnson

Jeffrey Johnson

Chief Design Officer

Jeff is a UX/UI designer, marketer, and creative pro. At Nested Knowledge, he is responsible for the user interface and user experience, as well as overall marketing strategy.

Prior to Nested Knowledge, he taught high school English and operated a creative agency focused on video marketing called Ocular Proof Productions. These days, he's focused on ensuring that Nested Knowledge remains fast, accurate, accessible and fun for both professional and academic users alike. Jeff also works to spread the word to new users and educate current users through whichever medium suits the moment.
Ranita Tarchand

Ranita Tarchand

Scientific Director

Ranita is a dedicated Account Executive and Manager at Nested Knowledge. Ranita pilots our clients through the pipeline and onboarding, ensuring their success in the software with her committed support.

She has a MS in Global Health Policy and Management (Economics and Analytics) from Brandeis University and her 7 years of experience working in public health and research fuels her passion for world health economics. Specifically, she is dedicated to servicing vulnerable populations by strengthening international health systems and security.
Jade Thurnham

Jade Thurnham

Director, User Experience & Design

Jade is a User Experience (UX) Designer and Strategic Account Manager. By regularly meeting with our users and utilizes her creativity to bridge the gap between meeting client needs and accelerating the useability of the software.

Prior to NK, Jade's focus was research, studying Biology at Occidental College. From conducting marine research in the Caribbean to investigating diabetes and Alzheimer's progression at hospitals, Jade quickly realised the need for a reliable software to automate the research review process. Naturally, she stumbled across Nested Knowledge where she quickly branched out of research into client support, design and analytics. Outside of work, Jade enjoys surfing and fusion food.
Marius Sauca

Marius Sauca

Director, Business Development, Europe

Marius is a Biomedical Scientist and Business Developer, and likes to think he is a good photographer. As NK's inaugural international hire, he has taken on the role of spearheading the platform's expansion into the European Market. In addition, Marius lends support to both new and existing clients in their research pursuits.

Having completed his Bachelor's in Biomedical Sciences at Maastricht University in the Netherlands, Marius further pursued a Master's degree in Science and Business Management at Utrecht University. It was during the course of writing his Master's thesis that Marius stumbled upon NK's platform, instantly falling in love with it. His passion for the platform has since driven him to help those struggling with writing reviews by spreading the word far and wide.
Luke Sims

Luke Sims

Marketing Associate

Luke oversees the day to day management of the social media through strategic content creation and community engagement initiatives. Luke is also responsible for crafting and executing comprehensive digital marketing strategies to engage and educate the community on Nested Knowledge services and advancements.

Key Partners

The Nested Knowledge team is supported by a wide range of investors, researchers, and development partners, and has worked closely with several institutions as a key technology provider. See a shortlist of key contributors and adopters here:

Founding Vision

See this interview with the founders about the unmet need Nested Knowledge’s founders are solving!