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Companies using JustCall

As of 14 October 2026, Firmable tracks 347 companies across 13 countries running JustCall. See who they are, and who to call.

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Companies using JustCall

Showing 5 of 347 companies

SaaS Labs

saaslabs.co · Computer software · 251–500 employees

Last seen 31 Aug 2026 The most recent date Firmable detected JustCall at this company.

Decision makers · 6 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Senior Customer Success Manager MobileEmail
Principal Product Marketing Manager Mobile

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

Hired as Head of Corporate Communications · 28 Sep 2026

JustCall announces participation in ActiveCampaign's Chicago event to discuss lead automation for agencies. · 14 Aug 2026

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Terra

terraenergy.io · Renewable energy · 51–250 employees

Last seen 29 Jul 2026 The most recent date Firmable detected JustCall at this company.

Decision makers · 19 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director of Business Development MobileEmail
Sales Director MobileEmail

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

Terra Energy Company expanded offices to Texas, United States, Northern America, Americas on Sep 6th '26. · 6 Sep 2026

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Bold

agebold.com · E-learning and online education · 51–250 employees

Last seen 19 Jul 2026 The most recent date Firmable detected JustCall at this company.

Decision makers · 32 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

VP of Marketing & Communications MobileEmail
Lifecycle Marketing Manager MobileEmail

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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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Massive Bio

massivebio.com · Hospitals and healthcare facilities · 51–250 employees

Last seen 23 Aug 2026 The most recent date Firmable detected JustCall at this company.

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

Country Head Clinical trial solutions MobileEmail
Co-Founder & Chief Medical AI Officer (CMAIO) MobileEmail

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

Massive Bio, Inc. invested into Rivvi LLC in investment on Aug 4th '26. · 4 Aug 2026

Massive Bio, Inc. is developing longitudinal patient digital twins and oncology world models. · 30 Sep 2026

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Copper

copper.com · Computer software · 251–500 employees

Last seen 17 Jul 2026 The most recent date Firmable detected JustCall at this company.

Decision makers · 41 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director, Product & Growth MobileEmail
VP Engineering MobileEmail

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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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Who uses JustCall

A breakdown of the 347 companies running JustCall.

Top industries

Information technology and services89
Professional and business services80
Financial services37
Education and training32
Industrial and manufacturing20
Construction and building12
Health and wellness10
Real estate and home services10

No industry recorded: 13

Company size

1–1061 (19%)
11–5074 (23%)
51–25076 (24%)
251–50026 (8%)
501–1,00019 (6%)
1,001–5,00035 (11%)
5,001–10,0004 (1%)
10,001+23 (7%)

Share of companies with a recorded size, by employees.

No size recorded: 29

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Frequently asked questions

About the JustCall data on this page.

How many companies use JustCall?

Firmable holds confirmed JustCall detections for 347 distinct companies, 54 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.

Which companies use JustCall?

SaaS Labs, Massive Bio and Bold are among the most prominent in the current set.

What industries use JustCall?

Information technology and services, professional and business services and financial services lead the set, across 19 industries in total.

What size companies use JustCall?

Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.

Where are JustCall users based?

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

How current is this data?

54 companies were confirmed in the last 90 days. Last detection 20 September 2026.

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