Blue J vs Trullion: who uses which
Customers, public proof and the companies that use both.
On usedby, 27 companies use Blue J and 20 use Trullion. No company is listed with both yet.Latest check Oct 8, 2026: 47 of 47 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 Blue J, Trullion, or both
Every company with a public proof for at least one of the two tools.
27
use only Blue J
0
companies use both
20
use only Trullion
27 companies use only Blue J, 20 use only Trullion and 0 use both, out of the 47 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Where it lands
Newest customers
No new customer since tracking started on October 8, 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.
Blue J
TrullionWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Blue J
this user saving 6–8 hours per week on tax research
R2 Advisors
Vendor case study, bluej.com, captured Oct 7, 2026
Time Saved Per Week: Up to 5 hours/user
McKonly & Asbury
Vendor case study, bluej.com, captured Oct 7, 2026
Trullion
workflow time was reduced by 40%
GRF CPAs & Advisors
Vendor case study, trullion.com, published Oct 4, 2023
Questions about Blue J and Trullion
Which is used more, Blue J or Trullion?
Blue J has more customers on usedby: 27 against 20 for Trullion.
Do companies use both Blue J and Trullion?
usedby has not found a company with a confirmed or observed line on both Blue J and Trullion yet.
Who uses Blue J?
27 companies on usedby, each with the public page that shows it. See who uses Blue J.
Who uses Trullion?
20 companies on usedby, each with the public page that shows it. See who uses Trullion.
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.