On usedby, 23 companies use E2B and 22 use Portkey. No company is listed with both yet. E2B leads among the Artificial Intelligence companies on usedby that use either tool.Latest check Oct 6, 2026: 45 of 45 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses E2B, Portkey, or both
Every company with a public proof for at least one of the two tools.
23
use only E2B
0
companies use both
22
use only Portkey
23 companies use only E2B, 22 use only Portkey and 0 use both, out of the 45 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for E2B yet.
Where it lands
Newest customers
No new customer since tracking started on October 5, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
E2B
PortkeyWhat customers report
Results as the vendor or the customer published them, with the source and the date.
E2B
we had over 50,000 users who started over 230,000 E2B sandboxes
LMArena
Vendor case study, e2b.dev, published Feb 3, 2025
from zero to $250M ARR in 12 months
Genspark
Vendor case study, e2b.dev, published May 7, 2026
Portkey
2x faster issue detection in development
Snorkel AI
Vendor case study, portkey.ai, captured Oct 5, 2026
How Fontys ICT uses Portkey
Fontys ICT
Vendor case study, portkey.ai, captured Oct 5, 2026
Questions about E2B and Portkey
Which is used more, E2B or Portkey?
E2B has more customers on usedby: 23 against 22 for Portkey.
Do companies use both E2B and Portkey?
usedby has not found a company with a confirmed or observed line on both E2B and Portkey yet.
Who uses E2B?
23 companies on usedby, each with the public page that shows it. See who uses E2B.
Who uses Portkey?
22 companies on usedby, each with the public page that shows it. See who uses Portkey.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of three proof levels: confirmed, observed or signal (a job post, the weakest). A company is named as using both tools when its lines on both are confirmed or observed.