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37signals replaced AWS

Now: Own Pure Storage flash arrays in two data centers

$1.3Mnet saved per year, after running costs

37signals moved about 18PB off S3 onto Pure Storage arrays in two data centers. The S3 bill was about $1.5M a year and the new storage runs under $200K. DHH said in October 2025 that the AWS account had been closed.

Receipt #00422025-10-20

37signals

Old billS3, about $1.5M a year
$125K
NowOwn storage, under $200K a year
$16.7K
Net saved per month$108K/mo
Proof checked

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Proof

Checked against the company's own public post.

Source

How proof works

Timeline

  1. Replaced2025-10-20

Stack

pure storage

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Others who left AWS

#CompanyProofNet saved /mo
1
37signalsAWS replaced with Own Dell servers in a colo, run with Kamal
$147K/mo
2
YellowbrickAWS replaced with Private Kubernetes in a Utah colo
Unclaimed, unverified
Unclaimed, unverified
$150K/mo
3
OneUptimeAWS replaced with Bare metal in a colo with MicroK8s and Ceph
Unclaimed, unverified
Unclaimed, unverified
$19.2K/mo
4
LendsqrAWS replaced with Hetzner Cloud
Unclaimed, unverified
Unclaimed, unverified
$11.9K/mo
5
FluentUAWS replaced with Hetzner
Unclaimed, unverified
Unclaimed, unverified
$7,259–$7,289/mo

Everyone who replaced AWS

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