The National Institutes of Health is the largest public funder of biomedical research in the world. Every grant it awards is a public record. That record is searchable for free, and it tells you a lot about where research money goes, which institutions get it, and which scientific questions are being funded before any results exist.
This article explains how to use that data. It covers the RePORTER tool, the award types you will see, and the lag between the award date and the publications that eventually come from it. It is written for people who track public disclosures for signals, not for grant writers. Nothing here is investment advice.
Why NIH data is worth reading
Most of what this blog covers is disclosure after the fact. A member of Congress trades a stock, then files a report. A fund manager builds a position, then reports it on a 13F. The information is useful, but it always arrives late.
NIH grant data is different in one way. The award comes before the work. When NIH funds a project, the money is committed before experiments run, before papers are written, and before any company licenses the result. That makes grant data one of the few public sources that look forward rather than back.
It is also structured. Each award has a project number, a funding institute, a principal investigator, an institution, a fiscal year, and an amount. Each award has an abstract and a set of public health relevance statements. You can search across all of it.
RePORTER basics
RePORTER stands for Research Portfolio Online Reporting Tools Expenditures and Results. It is the official NIH search tool for funded projects and is available at reporter.nih.gov. There is no login and no fee.
The search form lets you filter by many fields. The ones that matter most for signal work are:
- Fiscal year. NIH runs on the federal fiscal year, which starts on October 1. A grant listed under fiscal year 2026 was funded between October 2025 and September 2026.
- Funding institute or center. NIH is a collection of institutes. The National Cancer Institute, the National Institute of Allergy and Infectious Diseases, and the National Institute on Aging are three of the largest. Filtering by institute tells you which disease area a grant sits in.
- Organization. The institution that receives the money. This is usually a university, a hospital, a research institute, or a small company.
- Activity code. This is the award type, covered in the next section.
- Text search. You can search project titles, abstracts, and terms. This is how you find every funded project that mentions a specific target, pathway, or technology.
Each result links to a project detail page. That page shows the abstract, the total funding for the project, the funding history across years, and a list of publications and patents that cite the grant.
RePORTER also has an API. The endpoint accepts a JSON search payload and returns project records in bulk. The documentation is on the same site under the API section. If you want to track hundreds of projects over time, the API is the practical route. The web form is fine for a handful of lookups.
There is also ExPORTER, a set of downloadable files with the full project database by fiscal year. These are large CSV files. They are the right choice if you want to load everything into your own database and query it offline.
Award types and what they signal
Every NIH award carries an activity code. The code is a letter followed by two digits. The letter tells you the mechanism and the digits tell you the specific program. A few codes cover most of the money and most of the signal.
R01 is the standard research project grant. It funds a defined project led by one or more investigators, typically for several years. It is the backbone of NIH funding and the most common award to an established lab. A new R01 on a topic means a review panel judged the science sound enough to commit multi-year funding.
R21 is the exploratory grant. It is shorter and smaller than an R01 and is meant for early-stage ideas that lack preliminary data. An R21 signals that an investigator is moving into a new area, not that the area is mature.
R41, R42, R43 and R44 are the small business codes. R41 and R42 are Small Business Technology Transfer awards, which require a partnership between a company and a research institution. R43 and R44 are Small Business Innovation Research awards, which go directly to a company. Phase I awards, the R41 and R43, fund feasibility work. Phase II awards, the R42 and R44, fund development after Phase I succeeds.
These small business codes are the ones most relevant to anyone tracking private companies. A Phase II SBIR award means a company already completed a feasibility phase and convinced reviewers the technology is worth developing further. The company receiving it is often the same company that later files a Form D for a private raise, and the two public records together tell a fuller story than either one alone.
U01 and other U codes are cooperative agreements. NIH staff are substantially involved in the work. These are common for large clinical networks and consortia.
P01, P30 and P50 are program and center grants. They fund infrastructure and groups of related projects rather than a single investigation. The amounts are large, but the signal about any one scientific question is weak because the money is spread.
K codes are career development awards for individual researchers. F codes are fellowships. T codes are training grants. These matter for understanding a lab or an institution. They rarely matter for tracking a specific technology.
The full list of activity codes is published by NIH on the grants.nih.gov site. Use it when you meet a code you do not recognize.
The lag between award and publication
Here is the part most people miss. A grant award is public almost immediately after the money is committed. The results of that grant are not.
A typical R01 runs for four or five years. The first experiments take months to set up. The first manuscript may not be submitted until the second year. Peer review and publication add more time. Many papers that cite a grant appear after the grant period has ended, sometimes years after.
RePORTER tracks this. On each project page, the publications tab lists papers that acknowledge the grant. NIH requires funded investigators to deposit papers in PubMed Central and to cite the award, so the link between grant and paper is recorded. The policy is described on the NIH public access policy page.
For a signal reader, the lag works in two directions.
If you look at a new award, you are seeing a funding decision with no results attached yet. That is early information. It tells you which questions a review panel found credible. It does not tell you whether the work will succeed.
If you look at the publication list, you are seeing results that may be years behind the current state of the lab. The work in those papers was funded by an earlier award, possibly one that has already been renewed under a new project number.
The practical way to handle this is to read both. Check the award history to see how long a project has been funded and whether it has been renewed. Then check the publication list to see what has come out so far. A project that has been renewed twice with a steady stream of papers is a mature line of work. A project with a first-year award and no papers is a bet.
Patents work the same way. RePORTER links patents that cite NIH funding, but a patent filed in year three of a grant may not be published by the patent office until eighteen months after filing. The patent tab on a project page is always behind.
How this connects to the disclosures this site tracks
NIH data does not name a public company most of the time. The majority of awards go to universities and hospitals. The connection to a tradeable signal runs through the small business awards and through licensing.
A Phase II SBIR award to a private biotech is a public record of federal validation. If that company later raises private capital, the raise shows up as a Form D on EDGAR. How to read those filings is covered in our guide to Form D. Reading the two records together lets you see what the company was funded to build and how much private money followed.
For public companies, the path is less direct. A university lab with a large NIH portfolio may license a result to a company. That license is not an NIH record. It appears, if at all, in the company's own SEC filings. The grant data tells you which labs are productive. The SEC data tells you who paid for the output.
Congressional trading data is another layer. Members of Congress sit on the committees that set the NIH budget. Their stock trades are disclosed under the STOCK Act, and the mechanics of that disclosure are covered in our piece on how congressional disclosures work. The filing deadline and why it matters is in the 45-day rule article. NIH data cannot tell you whether a trade was informed. It can tell you which companies are downstream of federally funded science.
Free alternatives and complements
RePORTER is itself free, so the question is what to pair it with.
- USAspending.gov covers all federal spending, not just NIH. It is the right tool if you want to see NIH grants next to Department of Defense or Department of Energy research awards to the same recipient.
- SBIR.gov lists small business awards across all federal agencies with a company-level view. It is easier than RePORTER for tracking one company's full SBIR history.
- ClinicalTrials.gov shows registered trials. A grant-funded project that reaches human testing will usually appear there, which is a later milestone than the award and an earlier one than publication.
- PubMed and PubMed Central let you search publications directly. Searching by grant number in PubMed returns papers that cite a specific award.
None of these require payment. They do require time to learn and effort to join together, because the identifiers differ across systems. The company name in SBIR.gov may not match the organization name in RePORTER, and neither may match the issuer name on a Form D.
What the data cannot tell you
A few honest limits.
NIH funding is competitive and reviewed by scientists. A funded project is one that experts judged worth doing. That is not the same as a project that will produce a drug, a device, or a company.
Award amounts are commitments, not outcomes. A large award can fund work that fails. A small award can fund a result that changes a field.
Grant abstracts are written to win funding. They describe what the investigator hopes to do, in language chosen for a review panel. Read them as proposals.
And the lag is real. The newest award you can find today will not produce public results for a long time. If you want to know what is working now, you are reading grants from several years ago.
With those limits in mind, NIH data remains one of the clearest public views of where research money is going before the results exist. For the private companies that receive it, the next public record is usually a capital raise. Our Startup Capital Raises report tracks new Form D filings so you can see which federally backed companies are raising money and how much.
Want the signal instead of the raw filings? Get a free report preview. Prefer the tool to the write-up? Browse all data feeds or connect the free MCP server.