About - JustPremium


The programmatic buying and selling of online advertising space is currently undergoing a dynamic development. With new real-time technologies, advertisers can very accurately target specific consumer segments. Now that standard display sizes are widely available, advertisers will increasingly want to use innovative new ad formats.

According to Forrester Digital Media Buying Forecast, 63 percent of all European marketers plans to use more large format, rich media and video based advertising.

the people behind JustPremium

ERIC VISSER’S visionary outlook on the online landscape comes from his 20 years experience as an online entrepreneur. As an early adopter, Eric started several successful online initiatives in the early nineties, such as V3 Redirect Services. More than 10 years ago, he initiated investor platform IEX.nl and the related Free Media Group. In 2010 Eric started Cool concepts, one of the first Dutch Trading Desks and basis AdRepublic, owner of JustPremium. Eric is a shareholder and managing director, with primary focus on business development.

HARMEN TJAARDA has a background in financial trading. After 12 years of experience in international exchanges, including Amstel Securities and Bank Oyens & Van Eeghen, he switched to online marketing. The online marketing landscape is very similar to the landscape where the financial markets were 12 years ago. With JustPremium, Harmen translates his insights from the financial world, to the automated trading of premium display formats.

Our office


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Contact us

JustPremium NL

Constellation Building

Stationsplein NO 410

1117 CL  Schiphol

The Netherlands

+31-20 30 80 378

+31-20 30 84 953

+31-20 30 84 965

JustPremium US


151 west 25th street

2nd Floor, New York

NY 10001

+1 267 752 04 65

JustPremium UK

7 Carlisle Street


 W1D 3BW

 United Kingdom

+44 (0) 20 3773 6253

JustPremium DE

Elisabethstrasse 11
40217 Düsseldorf
+49 15 221 860 088

JustPremium ES

Plaza Carlos Trías Bertrán, 4
28020 Madrid

(m) +34 654 964 765

JustPremium BE

Avenue Louise, 523
Louizalaan 523
1050 Brussels

(m) +32 2 613 16 90

JustPremium MENA

Mena Market Place (MMP)
JLT Cluster X
Jumeirah Bay X2, Office 3902
Dubai, UAE
+971 4 514 85 50

JustPremium CA

210 – 128 West Hasting Street
Vancouver BC, V6B 1G8
+1 60 43 68 35 32

JustPremium PL

Broniewskiego 8/G2
35-206 Rzeszów
+31 20 308 03 78

Things we are good at

JustPremium hosts a great team of smart, innovative, and creative people. Young people that dream adtech and want nothing more than develop great innovative and gamechanging products.

Improve Campaign ROI's
Yield Optimization
Realtime Bidding Technologies
Rich Media Display, Video and Mobile Ads
Contact Us

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