Expand your business swiftly and effortlessly using the Cost Per Action model

Finance

Germany

I’ve been working with Сastellum since 2018 — over 6 years now, with many more ahead! The support is excellent, with a team that’s always accessible. We greatly value the global traffic access Сastellum provides. They understand the market dynamics and deliver results.

Sweepstakes

Australia

Our collaboration with Сastellum has been exceptional over the past 2 years. Сastellum has proven to be a crucial, reliable partner and consistently ranks among our Top 5 networks. Their stable team structure fosters long-term relationships, with new team members quickly integrated and professionally trained. Communication is always efficient and professional, making working with Сastellum a pleasure. Our Account Managers are not only experts in their field but also approachable and supportive. We look forward to continuing our successful partnership with Сastellum!

Mobile Content

Mexico

I’ve been with Сastellum from the beginning, and it’s been a great experience. The quality of traffic they deliver is outstanding, which is crucial for us in mobile content advertising. Beyond that, their account managers are responsive and proactive, always going the extra mile to assist. Сastellum offers high-quality traffic sources that allow us to reach diverse audiences and test new campaigns effectively. Overall, I’m highly satisfied with Сastellum—they come highly recommended!

Content

Canada

We have proven beneficial cooperation for over a decade. Their steadfast dedication to updating us on the latest strategies and technologies has played a pivotal role in optimising our marketing efforts. A proactive approach enables us to experiment with new methods to gain new leads effortlessly. We deeply value their expertise and look forward to achieving sustained success as we continue working together.

Social

Norway

Partnering with Castellum has proven invaluable for our business. Their swift responses have ensured seamless operations, addressing our needs promptly and effectively. Moreover, we’ve observed a marked improvement in the quality of incoming traffic. Their dedication to understanding our objectives and delivering results is commendable. We confidently recommend their services to anyone seeking reliable marketing solutions.

Sweepstakes

Italy

The benefits from RewardHub have been particularly captivating for our users, targeted with precision and generating significant interest. Your team’s dedication to understanding our goals and delivering tailored solutions has been invaluable. We look forward to continuing our fruitful collaboration and achieving even greater success together.

In-App

Spain

As an advertiser based in Spain, our partnership with Castellum has been instrumental in expanding our business horizons. Over the past three years, they’ve not only helped us enter new markets like Mexico but also unlocked fresh potential within our existing ventures. Their strategic insights and dedicated support have been pivotal in navigating international landscapes, and we look forward to exploring new GEOs together. Hope for more fruitful collaborations and even greater effectiveness in the future.

Sweepstakes

Japan

We want to gratitude for your exceptional support in adjusting our Sweepstakes campaigns. All our campaigns are now running seamlessly, and the results have been nothing short of outstanding. The transparency of the stats on your platform is truly commendable, providing us with clear insights into our campaign performance.

Mobile Content

USA

We appreciate Castellum’s dedication to protecting users and partners by carefully checking the content. It’s clear they put a lot of care into vetting and executing each campaign flawlessly according to plan. Knowing they prioritize following the rules gives us real peace of mind and makes us trust Castellum even more. Thanks for being such a reliable partner we can count on.