Stack Lookup
Get a free key

Technology answer

Fly.io

12,376

companies run it, 0.02% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 35,345 live hosts run it, of 191,809,695 hosts in the index, 0.02%. A host is a website, not a company.

Companies by month

Companies, monthly, on the fixed panel of sites crawled since 2020of 54,527,857 in the indexlanding 12 Sept 2026

12,376 at Sept 26; 13,101 twelve months earlier, -725, -5.5% on the fixed panel; the series starts January 2021 because the panel is anchored at 31 Dec 2020

The 69 numbers in this chart
MonthCompaniesObserved on the panel
2021-0100
2021-0200
2021-0300
2021-0400
2021-0500
2021-0600
2021-0700
2021-0800
2021-0900
2021-1000
2021-1100
2021-1200
2022-0100
2022-0200
2022-0300
2022-0400
2022-0500
2022-0600
2022-0700
2022-0800
2022-0900
2022-1000
2022-1100
2022-1200
2023-0100
2023-0200
2023-0300
2023-0431238
2023-0553365
2023-0675391
2023-07974118
2023-081,194145
2023-091,415172
2023-101,635199
2023-111,856225
2023-122,076252
2024-012,297279
2024-022,517306
2024-033,172385
2024-043,727452
2024-053,969482
2024-064,313524
2024-074,652565
2024-085,005608
2024-095,434660
2024-106,305765
2024-117,158869
2024-127,993970
2025-018,8431,074
2025-029,6561,172
2025-0310,4691,271
2025-0410,8591,318
2025-0511,3201,374
2025-0611,8151,434
2025-0712,2891,492
2025-0812,7761,551
2025-0913,1011,591
2025-1013,3481,621
2025-1113,1541,597
2025-1212,9781,576
2026-0112,8231,557
2026-0212,8151,556
2026-0312,8921,565
2026-0412,8471,560
2026-0512,7791,551
2026-0612,7371,546
2026-0712,6371,534
2026-0812,5291,521
2026-0912,3761,503

Both denominators, and a third

Shares of the same 12,376each row a different wholelanding 12 Sept 2026

Denominator
Companies
Share
companies in the index
54,527,857
0.02%
companies running anything in Hosting and Cloud Providers
21,771,203
0.06%
companies running anything in PaaS providers
1,037,206
1.2%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Fly.io is rank 5 of 24 technologies in PaaS providers.

Open as a segment

12,376 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-fly-io

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

A PaaS for running applications close to users on a global edge network.

Fly.io deploys containers and apps to regions worldwide with built-in networking, storage and scaling. It targets developers building latency‑sensitive web services and APIs.

Kindproduct
VendorFly.io, fly.io
PathInfrastructure and Hosting > Hosting and Cloud Providers > PaaS providers
Slugfly-io
Deploymentsaas
Pricingfreemium, usage based, subscription
Open sourceno
First discovered2023-10-05
Last discovered2026-09-10
Taxonomy releasetax-2026.10