Fieldguide vs Trullion: who uses which
Customers, public proof and the companies that use both.
On usedby, 35 companies use Fieldguide and 20 use Trullion. 1 company uses both, including Rehmann. Fieldguide leads among the Accounting & Audit companies on usedby that use either tool.Latest check Oct 10, 2026: 55 of 55 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 Fieldguide, Trullion, or both
Every company with a public proof for at least one of the two tools.
34
use only Fieldguide
1
company uses both
19
use only Trullion
34 companies use only Fieldguide, 19 use only Trullion and 1 uses both, out of the 54 companies on usedby that use at least one of them.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
| Rehmann |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Fieldguide
TrullionWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Fieldguide
Holbrook & Manter’s teams are already saving 35-50% in hours per engagement.
Holbrook & Manter
Vendor case study, fieldguide.com, captured Oct 7, 2026
helping reduce the amount of on-site travel by 75%
BerryDunn
Vendor case study, fieldguide.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 Fieldguide and Trullion
Which is used more, Fieldguide or Trullion?
Fieldguide has more customers on usedby: 35 against 20 for Trullion.
Do companies use both Fieldguide and Trullion?
Yes. 1 company uses both on usedby, including Rehmann.
Who uses Fieldguide?
35 companies on usedby, each with the public page that shows it. See who uses Fieldguide.
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.