Sites like NSF

01 · Entity

About NSF

NSF nsf.gov

NSF - U.S. National Science Foundation

NSF is an independent federal agency that supports science and engineering in all 50 states and U.S. territories.

Wikidata: United States government agency

Top 10K · #4,642 English 14 technologies Crawled Nov 6, 2026

Visit NSF

Summary by Claude

U.S. federal agency that funds basic research and education in non-medical science and engineering, offering grant opportunities, application guidance, and news about funded research.

Who it’s for

Researchers, universities, and STEM educators

Business model

Government funded

• research funding agency
• research grants
• funding opportunities
• grant proposal guidelines
• STEM education programs
• graduate research fellowships
• science news
• engineering research funding

02 · Embedding space

Competitor map

Each alternative by how close its vector is to NSF’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   National Academies nationalacademies.org Top 10K English

   National Academies of Sciences, Engineering, and Medicine

   Our work helps shape sound policies, inform public opinion, and advance the pursuit of science, engineering, and medicine.

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   0 say National Academies is a good alternative to NSF 0 say National Academies isn’t a real alternative to NSF

   Comment
   Very close cos 0.926
2. 02
   nih.gov Top 1K English

   US government medical research agency

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   0 say nih.gov is a good alternative to NSF 0 say nih.gov isn’t a real alternative to NSF

   Comment
   Very close cos 0.928
3. 03
   United States Department of Energy energy.gov Top 10K English

   Department of Energy

   U.S. Department of Energy - Home

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   0 say United States Department of Energy is a good alternative to NSF 0 say United States Department of Energy isn’t a real alternative to NSF

   Comment
   Very close cos 0.915
4. 04
   usa.gov Top 10K English

   Making government services easier to find | USAGov

   Find government benefits, services, agencies, and information at USA.gov. Contact elected officials. Learn about passports, Social Security, taxes, and more.

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   0 say usa.gov is a good alternative to NSF 0 say usa.gov isn’t a real alternative to NSF

   Comment
   Very close cos 0.913
5. 05
   CNRS cnrs.fr Top 10K English

   Centre national de la recherche scientifique (CNRS)

   Le Centre national de la recherche scientifique est le plus grand organisme public français de recherche scientifique. Il exerce son activité dans

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   0 say CNRS is a good alternative to NSF 0 say CNRS isn’t a real alternative to NSF

   Comment
   Very close cos 0.910
6. 06
   NASA nasa.gov Top 1K English

   NASA

   NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.

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   0 say NASA is a good alternative to NSF 0 say NASA isn’t a real alternative to NSF

   Comment
   Very close cos 0.909
7. 07
   EPA epa.gov Top 1K English

   U.S. Environmental Protection Agency | US EPA

   Website of the U.S. Environmental Protection Agency (EPA). EPA's mission is to protect human health and the environment.

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   0 say EPA is a good alternative to NSF 0 say EPA isn’t a real alternative to NSF

   Comment
   Very close cos 0.903
8. 08
   Smithsonian Institution si.edu Top 10K English

   Smithsonian request verification

   group of museums and research centers administered by the United States government

   • Adobe
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   • Apple Business

   0 say Smithsonian Institution is a good alternative to NSF 0 say Smithsonian Institution isn’t a real alternative to NSF

   Comment
   Very close cos 0.902
9. 09
   CMS cms.gov Top 10K English

   Home - Centers for Medicare & Medicaid Services | CMS

   United States federal agency

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   0 say CMS is a good alternative to NSF 0 say CMS isn’t a real alternative to NSF

   Comment
   Very close cos 0.901
10. 10
    ScienceDaily sciencedaily.com Top 10K English

    ScienceDaily: Your source for the latest research news

    Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate & environment, computers, engineering, health & medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations.

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    0 say ScienceDaily is a good alternative to NSF 0 say ScienceDaily isn’t a real alternative to NSF

    Comment
    Very close cos 0.903
11. 11
    National Cancer Institute cancer.gov Top 10K English

    Comprehensive Cancer Information - NCI

    Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.

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    0 say National Cancer Institute is a good alternative to NSF 0 say National Cancer Institute isn’t a real alternative to NSF

    Comment
    Very close cos 0.896
12. 12
    United States Department of State state.gov Top 1K English

    Technical Difficulties

    executive department of the U.S. federal government

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    0 say United States Department of State is a good alternative to NSF 0 say United States Department of State isn’t a real alternative to NSF

    Comment
    Very close cos 0.898
13. 13
    CDC cdc.gov Top 1K English

    Centers for Disease Control and Prevention | CDC

    United States government public health agency

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    • Zoom

    0 say CDC is a good alternative to NSF 0 say CDC isn’t a real alternative to NSF

    Comment
    Very close cos 0.897
14. 14
    United States Patent and Trademark Office uspto.gov Top 10K English

    United States Patent and Trademark Office

    Home page of the United States Patent and Trademark Office's main web site.

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    0 say United States Patent and Trademark Office is a good alternative to NSF 0 say United States Patent and Trademark Office isn’t a real alternative to NSF

    Comment
    Very close cos 0.895
15. 15
    College Board collegeboard.org Top 10K English

    College Board - SAT, AP, College Search and Admission Tools

    College Board is a non-profit organization that clears a path for all students to own their future through the AP Program, SAT Suite, BigFuture, and more.

    • Atlassian
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    0 say College Board is a good alternative to NSF 0 say College Board isn’t a real alternative to NSF

    Comment
    Close cos 0.893
16. 16
    OSF osf.io Top 10K English

    OSF

    tools that make open science practice easier

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    0 say OSF is a good alternative to NSF 0 say OSF isn’t a real alternative to NSF

    Comment
    Very close cos 0.895
17. 17
    National Institute of Standards and Technology nist.gov Top 1K English

    National Institute of Standards and Technology

    NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.

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    0 say National Institute of Standards and Technology is a good alternative to NSF 0 say National Institute of Standards and Technology isn’t a real alternative to NSF

    Comment
    Close cos 0.893
18. 18
    Internal Revenue Service irs.gov Top 10K English

    Internal Revenue Service | An official website of the United States government

    Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax responsibilities.

    • Drupal
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    0 say Internal Revenue Service is a good alternative to NSF 0 say Internal Revenue Service isn’t a real alternative to NSF

    Comment
    Very close cos 0.895
19. 19
    CIA cia.gov Top 10K English

    CIA

    national foreign intelligence agency of the United States

    • Akamai
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    0 say CIA is a good alternative to NSF 0 say CIA isn’t a real alternative to NSF

    Comment
    Close cos 0.894
20. 20
    EurekAlert! eurekalert.org Top 10K English

    EurekAlert! Science News Releases

    EurekAlert! is an online science news service featuring health, medicine, science and technology news from leading research institutions and universities. Sponsored by AAAS, the science society.

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    0 say EurekAlert! is a good alternative to NSF 0 say EurekAlert! isn’t a real alternative to NSF

    Comment
    Very close cos 0.895

Ranked by score: the cosine similarity of each site’s vector to nsf.gov’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones NSF uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What NSF is built with, and what its closest competitors use, from its homepage’s code and its DNS records.