Assertive is a specialist marketing & conversion rate optimisation agency delivering results to clients across the UK, Europe and the World. At over 12 years old, we are one of the UK’s longest-running digital agencies.

We’re not your typical marketing agency.

We are Assertive (historically Assertive Media before our rebrand). We’re an established, reliable, reputable, results-driven agency that delivers real results for businesses looking to create, to convert, to be visible, to produce, to sell & more.

Our agency has carved a unique place in the digital marketing niche by fully integrating business development, cost efficiency & conversion optimisation into SEO, PPC and Social Media marketing to maximise return on investment.

Assertive team members thrive on success and deliver exceptional results from significant traffic and visibility growth to increased organic / paid prominence.

More About Assertive


With over 20 people in the Assertive team, we have diverse skill & expertise coverage to deliver on projects covering everything from SEO to Development, Pay Per Click to Conversion Optimisation.


Awards & Recognitions

Recognised by the IIM, Featured on The DRUM, Recommended Agencies, Clutch, Top 100 SEO’s, Best SEO’s, SEMRush, MOZ, Search Engine Watch, Forbes, GQ, Entrepreneur, eConsultancy & The Independent. We’re frequently in the media.



Assertive are looking for highly skilled individuals to join our growing agency. We offer a range of different careers & opportunities for interns to learn & develop to build a career in digital.


Customer Reviews

We’ve maintained an excellent reputation as an agency with an excellent testimonial & review profile.




Assertive has been established for more than 12 years, deals with over 100 clients & handles more than £5 million ad-spend a year across Google Ads & Social Media.



Our agency has additional cloud resource on tap for flexible scalability to meet significant project demands & deadlines, we’re one of the very few agencies in the UK to operate a cloud resource model.

We do not follow the same agency

Why? the people who founded Assertive in 2007 did so on the basis that we’d never treat clients as “just a source of revenue”. Even with our growth and success, no one client takes priority over another – a model we adopt closely and will never deviate from.

Clients wanted transparency with their SEO campaigns, and we give it to them. Clients wanted to always know what was being done, and we give them that. Clients wanted an agency that wouldn’t lie during sales pitches, mismanage expectations, constantly hand over new account managers and most importantly, fail to understand specific needs.

Learn more about what clients we work with.

Protecting Your Data & Compliance

Assertive is a trusted supplier for Government, Local Government, Police Forces, Charities, Financial Institutions & Corporate Businesses.

Our agency works to ensure that data is protected, that client sites are protected, and that we comply fully with required legislation from data handling & protection to security & risk management. Learn more about our LEGAL standards.

We’re GDPR compliant & operate to exceptional compliance standards when it comes to data security, storage & retention.
If you would like to know more about how we protect your data, review our privacy policy.