// ui frameworks

Websites that use Flat UI in 2026

We track 1,767 websites running Flat UI across 48 industries and 21 countries. Browse a sample of 100 matched company profiles below, each with industry, location, and verified contact data.

industries: 48
countries: 21
websites tracked: 1,767

Domain, industry and country per company

Free CSV export

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Companies using Flat UI

Showing 25 of 100

Website	Company	Industry	HQ
jdpharmacy.com	J & D Pharmacyjdpharmacy.com	Wellness and Fitness Services	US
kredytinkaso.bg	Kredyt Inkaso Investments BGkredytinkaso.bg	Financial Services	BG
kamcor.com	KAMCOR LTDkamcor.com		US
health.gov.lk	Ministry of Health Sri Lankahealth.gov.lk	Hospitals and Health Care	LK
dmd.it	DMD Computersdmd.it	Robot Manufacturing	US
donorstrust.org	Donors Trust Incdonorstrust.org	Philanthropy	US
gallano.com	Gallano Truckinggallano.com	Transportation, Logistics, Supply Chain and Storage	US
gilog.net	Giloggilog.net	Transportation, Logistics, Supply Chain and Storage	DE
desitin.de	Desitin Arzneimitteldesitin.de	Pharmaceutical Manufacturing	DE
homebinder.com	HomeBinderhomebinder.com	Real Estate	US
helloify.com	Helloifyhelloify.com	Information Services	AU
seaproc.com	iMarine Software LTDseaproc.com	Maritime Transportation	US
icex.es	ICEX España Exportación Inversionesicex.es	Import and Export	ES
riovermelho.net	Rio Vermelho Distribuiçãoriovermelho.net	Wholesale	BR
redesetgrow.com	Red-E Set Growredesetgrow.com	Software Development	US
simplebots.co	Simplebotssimplebots.co		US
henkilostopooli.fi	Suomen Henkilöstöpooli Oyhenkilostopooli.fi	Human Resources	FI
galaxywind.com	Galaxywindgalaxywind.com	Electrical Equipment Manufacturing	CN
stellablu-nh.com	Stella Blustellablu-nh.com	Restaurants	US
assist2hear.com	Assist 2 Hearassist2hear.com	Consumer Goods	US
a4le.org	Association for Learning Environmentsa4le.org	Facilities Services	US
americanpatient.org	American Patient Rights Associationamericanpatient.org	Non-profit Organizations	US
apicalin.com	Apical Innovationsapicalin.com	Information Services	IN
studio-78.com	Studio 78studio-78.com	Design Services	US
sunjray.com	Sunjray Infosystemssunjray.com	Information Services	IN

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

10 (10%)

Information Services

8 (8%)

Information Technology and Services

6 (6%)

Higher Education

5 (5%)

Research Services

4 (4%)

Non-profit Organizations

How many websites use Flat UI?

We track 1,767 websites that use Flat UI in 2026. Those sites span 48 industries and 21 countries. The crawler re-checks each domain daily. So the count moves as sites adopt Flat UI or drop it.

Flat UI 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 Flat UI most?

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

Information Services10%
Information Technology and Services8%
Higher Education6%
Research Services5%
Non-profit Organizations4%

Information Services leads that list. However, the long tail matters just as much. Adoption reaches 48 industries in total. So you can narrow the list to the segment you sell into.

Where are websites that use Flat UI based?

The matched companies sit in 21 countries. These lead the sample:

United States 46
United Kingdom 10
Germany 6
Spain 6
Australia 4

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 Flat UI

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 Flat UI?

We track 1,767 websites that use Flat UI. 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 Flat UI?

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 Flat UI the most?

Information Services leads the matched sample, at 10% of companies. In total, websites that use Flat UI span 48 industries.

How fresh is the Flat UI data?

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

Can I get email addresses for websites that use Flat UI?

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 Flat UI, 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":["Flat UI"]}},"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":["Flat UI"]}},"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":["Flat UI"]}},"page":1},
)
companies = res.json()["data"]["companies"]

// technologies

Other technologies to explore

Websites that use Flat UI in 2026

Download the 100 Flat UI customers

Companies using Flat UI

Refine to your ICP

Industry breakdown

How many websites use Flat UI?

Which industries use Flat UI most?

Where are websites that use Flat UI based?

How to find websites that use Flat UI

Frequently asked questions

Companies using Flat UI, 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