// ui frameworks

Websites that use USWDS in 2026

We track 375 websites running USWDS across 29 industries and 2 countries. Browse a sample of 100 matched company profiles below, each with industry, location, and verified contact data.

industries: 29
countries: 2
websites tracked: 375

Domain, industry and country per company

Free CSV export

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Companies using USWDS

Showing 25 of 100

Website	Company	Industry	HQ
deltadental.com	Delta Dental Plans Associationdeltadental.com	Insurance	US
grantsolutions.gov	GrantSolutionsgrantsolutions.gov	Government Administration	US
ibwc.gov	International Boundary and Water Commissionibwc.gov	Government Administration	US
icoe.org	Imperial County Office of Educationicoe.org	Education Management	US
sanmateocourt.org	Superior Court of California, County of San Mateosanmateocourt.org	Administration of Justice	US
kentfieldschools.org	Kentfield School Districtkentfieldschools.org	Primary and Secondary Education	US
txshowdown.com	Texas Showdowntxshowdown.com	Recreational Facilities	US
access-board.gov	UNITED STATES ACCESS BOARDaccess-board.gov	Government Administration	US
secretservice.gov	U.S. Secret Servicesecretservice.gov	Law Enforcement	US
eac.gov	U.S. Election Assistance Commissioneac.gov	Legislative Offices	US
osti.gov	Department of Energy Office of Scientific and Technical Informationosti.gov	Information Services	US
delaware.gov	Delaware State Policedelaware.gov	Hospitals and Health Care	US
onhir.gov	Office of Navajo and Hopi Indian Relocationonhir.gov	Government Relations	US
va.gov	VA Sierra Nevada Health Care Systemva.gov	Government Administration	US
dot.gov	Department of Telecommunicationsdot.gov	Transportation, Logistics, Supply Chain and Storage	US
si.edu	Smithsonian Institutionsi.edu	Museums, Historical Sites, and Zoos	US
cdc.gov	CDCcdc.gov	Government Administration	US
virginia.gov	Commonwealth of Virginiavirginia.gov	Transportation, Logistics, Supply Chain and Storage	US
doi.gov	U.S. Department of the Interiordoi.gov	Government Administration	US
nih.gov	National Institutes of Healthnih.gov	Research Services	US
gsa.gov	GSAgsa.gov	Government Administration	US
state.gov	Bureau of International Narcotics and Law Enforcement Affairsstate.gov	international affairs	US
iowa.gov	Iowaiowa.gov	Government Administration	US
wa.gov	Washington State Employment Security Departmentwa.gov	Government Administration	US
osu.edu	The Ohio State Universityosu.edu	Higher Education	US

Refine to your ICP

Narrow these 100 companies down to the ones that match your ideal customer profile.

Revenue range Headcount Tech stack Funding stage Hiring signals Buyer intent Job title Location Founded year

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Industry breakdown

46 (46%)

Government Administration

9 (9%)

Research Services

5 (5%)

Higher Education

3 (3%)

Law Enforcement

3 (3%)

Administration of Justice

How many websites use USWDS?

We track 375 websites that use USWDS in 2026. Those sites span 29 industries and 2 countries. The crawler re-checks each domain daily. So the count moves as sites adopt USWDS or drop it.

USWDS belongs to the UI frameworks category. Sites in that category tend to share a similar stack. As a result, they often share buying patterns too.

The table above shows a sample of 100 matched companies. Each row carries an industry, a country, and a live domain. You can search it, sort it, and export it.

Which industries use USWDS most?

Adoption is not spread evenly. Instead, a few industries account for most of the matched sample:

Government Administration46%
Research Services9%
Higher Education5%
Law Enforcement3%
Administration of Justice3%

Government Administration leads that list. However, the long tail matters just as much. Adoption reaches 29 industries in total. So you can narrow the list to the segment you sell into.

Where are websites that use USWDS based?

The matched companies sit in 2 countries. These lead the sample:

United States 99
Australia 1

United States is the largest single market in this sample. Because the country is stored per row, you can filter before you export. That keeps your outreach inside one timezone and one legal regime.

How to find websites that use USWDS

Start with the table above. Then follow these four steps to turn it into an outreach list:

Filter the sample. Narrow by industry or country until the rows match your ideal customer profile.
Export the domains. Share the page to unlock the CSV, or sign in for the full dataset.
Find the people. Run each domain through Domain Search to pull every work email behind it.
Verify before you send. Pass the results through the Email Verifier so your bounce rate stays low.

Working at volume? Push the whole export through Bulk Tasks instead, or call the Domain Search API directly from your own stack.

Frequently asked questions

How many websites use USWDS?

We track 375 websites that use USWDS. The index refreshes daily, so the number shifts as sites adopt or drop it. Of those, 100 are matched to a company profile with industry, location, and contact data.

Can I download the list of websites that use USWDS?

Yes. Share the page on LinkedIn to unlock a CSV export of the matched sample, with no signup required. For the full dataset and verified email addresses, create a free Tomba account.

Which industries use USWDS the most?

Government Administration leads the matched sample, at 46% of companies. In total, websites that use USWDS span 29 industries.

How fresh is the USWDS data?

Our crawler re-checks technology signals daily. So a site that removes USWDS drops out of the index, and a new adopter appears without you refreshing anything.

Can I get email addresses for websites that use USWDS?

Yes. Every domain in the table can be enriched with verified work emails and direct phone numbers. Run a single domain through Domain Search, or push the whole export through Bulk Tasks.

// get this list by api

Companies using USWDS, one request away

Filter the company search by technology, then find and verify the people at each company. The technology filter is available on paid plans; 50 companies per page.

01POST/reveal/searchCompanies that match a plain-language query or filters1 search credit 02GET/domain-searchThe email addresses at a company, with names, roles and the company profile1 search credit per 10 results 03GET/email-verifierWhether an address is deliverable: syntax, MX, SMTP, catch-all and greylisting checks1 verification credit

POST /reveal/search

curl -X POST "https://api.tomba.io/v1/reveal/search" \
  -H "X-Tomba-Key: $TOMBA_API_KEY" \
  -H "X-Tomba-Secret: $TOMBA_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -d '{"filters":{"technologies":{"include":["USWDS"]}},"page":1}'

const res = await fetch("https://api.tomba.io/v1/reveal/search", {
  method: "POST",
  headers: {
    "X-Tomba-Key": process.env.TOMBA_API_KEY,
    "X-Tomba-Secret": process.env.TOMBA_SECRET_KEY,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({"filters":{"technologies":{"include":["USWDS"]}},"page":1})
});
const { data } = await res.json(); // data.companies

import os, requests

res = requests.post(
    "https://api.tomba.io/v1/reveal/search",
    headers={
        "X-Tomba-Key": os.environ["TOMBA_API_KEY"],
        "X-Tomba-Secret": os.environ["TOMBA_SECRET_KEY"],
    },
    json={"filters":{"technologies":{"include":["USWDS"]}},"page":1},
)
companies = res.json()["data"]["companies"]

// technologies

Other technologies to explore

Websites that use USWDS in 2026

Download the 100 USWDS customers

Companies using USWDS

Refine to your ICP

Industry breakdown

How many websites use USWDS?

Which industries use USWDS most?

Where are websites that use USWDS based?

How to find websites that use USWDS

Frequently asked questions

Companies using USWDS, one request away

Other technologies to explore

Bootstrap

ZURB Foundation

UIKit

Material Design Lite

Tailwind CSS

Pure CSS

Semantic UI

MDBootstrap

Materialize CSS

Ant Design

Flowbite

EasyUI