
Top Adtech Startups London #1 Best Advertising Startups UK Guide
Update: Check out our new b2b fintech startups london and finance headhunters london guidesThe capital has always been a world leader for advertising and arguably after a late start it’s catching up in the world of advertising and marketing platforms.


So let’s look at the hottest companies bringing innovation to this sector.

1. Flexion



Flexion’s open and global distribution platform for android games offers new opportunities for you as a developer. Your games can now easily reach the whole market without requiring you to integrate and operate multiple channels at prohibitive cost.
We let you focus on what you do best while we offer services and technology that maximises your revenues. It’s our mission to help you succeed with new distribution!
2. Specle



Specle believe that high-quality ad production is paramount to good advertising. That is why Specle provide the tools to streamline the work of advertisers, creatives and media owners, making validation, delivery, and receipt a consistent end-to-end process.
Specle give studios and media owners room to grow, designers tools to innovate, and individuals the resources to advertise with ease.
best Adtech startups london
3. Adnow


Adnow launched in December 2015 and since then the algorithms and mathematical model were changed over 12 times improving the selective mechanics, while taking into account feedback from clients and their partners.
The story of Adnow began in 2014, when a bunch of digital geeks passionate about digital marketing, RTB and Big Data came up with the idea of creating a new hybrid native ad format. This format was designed to serve ads and make the discovery of new and interesting content very easy and user-friendly.

This format also allows to use media banners and native ads in the course of the same campaign, which comes in handy for clients and agencies when running brand promotion campaigns.
The concept of serving interesting ads and content is quite obvious, however, the technical solution is complicated. It took the Adnow team over 1 year to develop the first platform prototype.
The effectiveness of its’ algorithms was impressive from the outset. The idea came to fruition thanks to our co-founders that have been working with RTB, Big Data, media buying, pay per click campaigns and mobile advertising for the last 10-14 years. The combination of passion and experience made it possible to improve this platform and turn it into an effective advertising tool.
4. Adspruce



Adspruce delivers beautiful rich-media ads and interactive video to more devices than anyone else.
AdSpruce is the leading programmatic video advertising Supply Side Platform (SSP) on the mobile web dedicated to helping publishers maximize the value of their inventory through high-performance video ad formats and direct sales to brands and agencies. Our ad server can deliver video to more devices than anyone else and we own our whole technology stack enabling us to deliver industry-leading ad experiences, targeting, tracking, security and ad spot controls to customers.