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Companies using Sizmek

As of 14 October 2026, Firmable tracks 12,603 companies across 13 countries running Sizmek. See who they are, and who to call.

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Companies using Sizmek

Showing 5 of 12K+ companies

Assured Guaranty

assuredguaranty.com · Insurance · 251–500 employees

Last seen 27 Aug 2026 The most recent date Firmable detected Sizmek at this company.

Decision makers · 230 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director, Corporate Communications MobileEmail
Director - Corporate Communications/Investor Relations MobileEmail

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

Assured Guaranty Ltd. invests into Brightline Trains LLC $258M in post-petition funding. · 25 Sep 2026

Assured Guaranty Ltd. had revenue of $195M on Sep 25th '26. · 25 Sep 2026

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Wilson Parking

wilsonparking.com.au · Commercial real estate services · 251–500 employees

Last seen 1 Sep 2026 The most recent date Firmable detected Sizmek at this company.

Decision makers · 152 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Sales Director | Spott MobileEmail
GM Digital MobileEmail

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

Moved into Sales Director | Spott · 31 Jul 2026

New Regional Manager joined · 31 Jul 2026

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Roundel

roundel.com · Online and digital media · 251–500 employees

Last seen 19 Aug 2026 The most recent date Firmable detected Sizmek at this company.

Decision makers · 121 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director GTM Solutions MobileEmail
Head of Marketing MobileEmail

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

Hiring: Specialty Sales Team Leader · 9 Oct 2026

Roundel has revenue of $279M. · 19 Aug 2026

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Vistar Media

vistarmedia.com · Online and digital media · 251–500 employees

Last seen 22 Aug 2026 The most recent date Firmable detected Sizmek at this company.

Decision makers · 153 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Account Director, Demand MobileEmail
Account Director MobileEmail

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

New Account Director joined · 31 Jul 2026

Hired as Country Manager for Japan · 10 Sep 2026

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Raleigh-Durham International Airport (RDU)

rdu.com · Construction · 251–500 employees

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

Decision makers · 100 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director of Marketing Communications MobileEmail
Director of Digital Communications MobileEmail

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

RDU invested into assets: runway in the amount of $1.1B on Aug 10th '26. · 10 Aug 2026

Raleigh-Durham International Airport announced its new Shop & Dine portal featuring local food and beverage options. · 8 Oct 2026

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Who uses Sizmek

A breakdown of the 12K+ companies running Sizmek.

Top industries

Transport3.6K+
Art, sports and recreation886
Retail trade846
Media and telecommunications778
Financial services770
Industrial and manufacturing705
Hospitality and travel659
Professional and business services640

No industry recorded: 1.5K+

Company size

1–101,535 (18%)
11–501,599 (19%)
51–2502,230 (26%)
251–5001,250 (15%)
501–1,000426 (5%)
1,001–5,000856 (10%)
5,001–10,000235 (3%)
10,001+306 (4%)

Share of companies with a recorded size, by employees.

No size recorded: 4.1K+

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Frequently asked questions

About the Sizmek data on this page.

How many companies use Sizmek?

Firmable holds confirmed Sizmek detections for 12,603 distinct companies, 2,712 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.

Which companies use Sizmek?

Assured Guaranty, Vistar Media and Roundel are among the most prominent in the current set.

What industries use Sizmek?

Transport, art, sports and recreation and retail trade lead the set, across 19 industries in total.

What size companies use Sizmek?

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

Where are Sizmek users based?

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

How current is this data?

2,712 companies were confirmed in the last 90 days. Last detection 14 October 2026.

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