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 Education ed.gov Top 10K

   Azure WAF

   Azure WAF

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

   Comment
   Very close cos 0.925
4. 04
   United States Geological Survey usgs.gov Top 10K

   scientific agency of the United States government

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   0 say United States Geological Survey is a good alternative to NSF 0 say United States Geological Survey isn’t a real alternative to NSF

   Comment
   Very close cos 0.914
5. 05
   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
6. 06
   Japan Science and Technology Agency jst.go.jp Top 10K Japanese

   国立研究開発法人科学技術振興機構

   国立研究開発法人科学技術振興機構（略称ＪＳＴ）は、知の創出から研究成果の社会還元とその基盤整備を担うわが国の中核的機関です。世界トップレベルの研究開発を行うネットワーク型研究所として、未来共創イノベーションを先導します。

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   0 say Japan Science and Technology Agency is a good alternative to NSF 0 say Japan Science and Technology Agency isn’t a real alternative to NSF

   Comment
   Very close cos 0.912
7. 07
   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
8. 08
   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
9. 09
   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
10. 10
    Federal Register federalregister.gov Top 10K

    official journal of the U.S. Federal Government

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

    Comment
    Very close cos 0.905
11. 11
    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
12. 12
    Smithsonian Institution si.edu Top 10K English

    Smithsonian request verification

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

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    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
13. 13
    CMS cms.gov Top 10K English

    Home - Centers for Medicare & Medicaid Services | CMS

    United States federal agency

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    • Akamai

    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
14. 14
    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
15. 15
    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
16. 16
    United States Department of Agriculture usda.gov Top 1K

    department of the US government

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

    Comment
    Very close cos 0.897
17. 17
    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
18. 18
    CDC cdc.gov Top 1K English

    Centers for Disease Control and Prevention | CDC

    United States government public health agency

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    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
19. 19
    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.

    • Adobe
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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
20. 20
    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.

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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

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.