About Nested Knowledge
Nested Knowledge is a Healthcare company based in Saint Paul (United States) founded in 2018 by Stephen Mead, Karl Holub, Keith Kallmes, and Kevin Kallmes. Clinical evidence platform provided for pharma, device, and research entities. Nested Knowledge has raised $6.76 million across 7 funding rounds from investors including HHS. Its chief executive, as recorded, is Kevin Kallmes. Its website nested-knowledge.com draws about 19 thousand monthly visits. Its focus areas include HealthTech, Healthcare IT, Provider and Professional Network. Its competitors include OpenEvidence, Copient Health and iDoctus; 2 of its 3 listed competitors have raised funding.
Company details
Provider of a clinical evidence platform for pharma, device, and research entities. The company offers a digital platform that helps both clinicians and corporate researchers to optimize their meta-analytical research process in a modernized visualization tool for comparing patient characteristics, treatment plans, and therapy outcomes. They offer individual and institutional subscriptions to use the platform to build and present living reviews as well as employing proprietary AI technologies to enhance the research process.
- Headquarters Saint Paul, United States
- Founders Stephen Mead, Karl Holub, Keith Kallmes, Kevin Kallmes
- SectorsHealthcare
- Email••••••••
- Website nested-knowledge.com
- Social LinkedIn X Facebook
- Total Equity Funding$6.76M (USD)
in 7 rounds
- Latest Funding Round$4.18M (USD), Series A
Dec 2025
- Investors
Funding Insights of Nested Knowledge
Nested Knowledge has successfully raised a total of $6.76M across 7 strategic funding rounds. The most recent funding activity was a Series A round of $4.18 million completed in December 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $6.76M
- Total Rounds 7
- Last Round Series A — $4.18M
- First Round $50,000
(Mar 2019)
- Investors Count 1
All 7 funding rounds of Nested Knowledge with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
1 investors in total: 1 institutional.
Investors in Nested Knowledge
Nested Knowledge has secured backing from 1 investor, including institutional investors. Prominent investors backing the company include HHS.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Public health and human services are overseen by HHS. | 1953 | hhs.gov |
Investor details for Nested Knowledge
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People of Nested Knowledge
13 people are tracked at Nested Knowledge (8 in leadership, 4 in board & advisors, 1 in team).
| Name | Role | Group |
|---|---|---|
Stephen Mead | Co-Founder | Leadership |
Karl Holub | Co-Founder | Leadership |
Keith Kallmes | Co-Founder | Leadership |
Kevin Kallmes | Co-Founder & CEO | Leadership |
Marius Sauca | Director, Business Development for Europe | Leadership |
Ranita Tarchand | Vice President, Scientific Strategy & Client Success | Leadership |
Jeff Johnson | Chief Design Officer | Leadership |
Kathryn Cowie | Chief Operating Officer | Leadership |
Julia Brodsky | Advisor | Board & advisors |
Tomas Philipson | Director | Board & advisors |
Dheerendra Kommala | Advisor | Board & advisors |
Tony Coniglio | Advisor | Board & advisors |
Dr Neeraj Mehta | Consultant - Client Engagement | Team |
Complete people profiles for Nested Knowledge
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
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Timeline of Nested Knowledge
3 dated milestones of Nested Knowledge across 7 years, from founding to its latest funding, stage changes and deals.
- Founded Nested Knowledge is founded.
- Funding First funding round of $50K.
- Funding Latest funding round, Series A, of $4.2M.
Competitors of Nested Knowledge
Nested Knowledge has 3 listed competitors in our database, 2 of them funded. They include OpenEvidence, Copient Health and iDoctus.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| openevidence.com | 2021 | Cambridge, United States | $485M | Medical evidence is aggregated and visualized for healthcare professionals. | ||
| copienthealth.com | 2019 | Alpharetta, United States | $3.2M | Predictive analysis solutions are provided for healthcare providers. | ||
| idoctus.com | 2011 | Spain, United States | Medical app providing drug searches, interactions, and clinical tools for healthcare professionals. |
Detailed competitors of Nested Knowledge
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Web traffic of Nested Knowledge
The website of Nested Knowledge (nested-knowledge.com) receives about 18.6K visits a month.
- Monthly visits18.6K
▲ 47.1% vs previous month
Top companies in Clinical IT & Data Platforms
3 companies that operate in the same segment as Nested Knowledge (Clinical IT & Data Platforms) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Employee health benefits are facilitated via a cloud-based platform. | 2007 | Plymouth Meeting, Pennsylvania, United States | USD 228.3 M | |||
Healthcare appointments are booked online via Zocdoc's platform. | 2007 | New York, New York, United States | USD 425.97 M | USD 4.66 M | 1,365 | |
Virtual physical therapy and digital pain care solutions are provided. | 2015 | San Francisco, California, United States | USD 854.44 M | 1,746 |
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Related news about Nested Knowledge
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Frequently Asked Questions about Nested Knowledge
Nested Knowledge was founded in 2018 and raised its 1st funding round 1 year after it was founded.
Nested Knowledge is headquartered in Saint Paul, United States. It is registered at Saint Paul, Minnesota, United States.
Kevin Kallmes is the CEO of Nested Knowledge, as recorded in our data. They have also founded this company.
Nested Knowledge is a funded company, having raised a total of $6.76M across 7 funding rounds to date. The company's 1st funding round was a Seed of $50K, raised on Mar 2019.
Provider of a clinical evidence platform for pharma, device, and research entities. The company offers a digital platform that helps both clinicians and corporate researchers to optimize their meta-analytical research process in a modernized visualization tool for comparing patient characteristics, treatment plans, and therapy outcomes. They offer individual and institutional subscriptions to use the platform to build and present living reviews as well as employing proprietary AI technologies to enhance the research process.
Nested Knowledge's top competitors include OpenEvidence, Copient Health and iDoctus.
Nested Knowledge has 1 investor. Key investors include HHS.