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Companies using TaxCalc

As of 14 October 2026, Firmable tracks 57 companies across 13 countries running TaxCalc. See who they are, and who to call.

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Companies using TaxCalc

Showing 5 of 57 companies

The Back Room Offshoring Inc.

thebackroomop.com · Business support services · 251–500 employees

Last seen 2 Sep 2026 The most recent date Firmable detected TaxCalc at this company.

Decision makers · 37 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Chief Operating Officer MobileEmail
Chief Financial Officer MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Moved into UK Assistant Tax Manager · 31 Jul 2026

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AcoBloom International®

acobloom.com · Accounting and auditing services · 251–500 employees

Last seen 6 Sep 2026 The most recent date Firmable detected TaxCalc at this company.

Decision makers · 1 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Manager - Business Development Email

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Signals Recent events at this company, such as a leadership change, funding or a new office.

No signals recorded

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Combinely LTD

combinely.ai · Computer software · 1–10 employees

Last seen 7 Aug 2026 The most recent date Firmable detected TaxCalc at this company.

Decision makers · 3 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Co-Founder & CTO Email
AI Solutions Lead Email

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Signals Recent events at this company, such as a leadership change, funding or a new office.

No signals recorded

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Obox Solution

oboxsolution.com · Unclassified · 51–250 employees

Last seen 12 Aug 2026 The most recent date Firmable detected TaxCalc at this company.

Decision makers · 8 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Practice Manager MobileEmail
Director Technical Operations Email

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Signals Recent events at this company, such as a leadership change, funding or a new office.

No signals recorded

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ICAEW

icaew.com · Accounting and auditing services · 1,001–5,000 employees

Last seen 4 Aug 2026 The most recent date Firmable detected TaxCalc at this company.

Decision makers · 24 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Senior Member and Stakeholder Manager MobileEmail
Head of Indonesia at ICAEW MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

HTFT Partnership partnered with ICAEW on an Accounting exam webinar · 1 Oct 2026

ICAEW attends event 2026 Aspiring Professional Accountants Festival. · 23 Sep 2026

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Who uses TaxCalc

A breakdown of the 57 companies running TaxCalc.

Top industries

Financial services28
Professional and business services10
Information technology and services5
Media and telecommunications3
Art, sports and recreation2
Education and training1
Government and public services1
Health and wellness1

No industry recorded: 4

Company size

1–1012 (26%)
11–508 (17%)
51–25011 (24%)
251–5005 (11%)
501–1,0001 (2%)
1,001–5,0005 (11%)
10,001+4 (9%)

Share of companies with a recorded size, by employees.

No size recorded: 11

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Frequently asked questions

About the TaxCalc data on this page.

How many companies use TaxCalc?

Firmable holds confirmed TaxCalc detections for 57 distinct companies, 19 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.

Which companies use TaxCalc?

The Back Room Offshoring Inc., Obox Solution and AcoBloom International® are among the most prominent in the current set.

What industries use TaxCalc?

Financial services, professional and business services and information technology and services lead the set, across 12 industries in total.

What size companies use TaxCalc?

Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.

Where are TaxCalc users based?

The United States, Australia, Canada and the Philippines account for most detections, across 13 countries.

How current is this data?

19 companies were confirmed in the last 90 days. Last detection 19 September 2026.

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