About
Assertive is a London based digital marketing & conversion agency that specialises in combining SEO with user experience optimisation & conversion rate optimisation. Our brand delivers highly specialised SEO strategies to medium and large UK businesses where strong growth is essential. Our agency is one of the UK's first full-cloud agencies with fully transparent work & project management, video reporting & advanced cloud reporting with real-time collaboration. Established in 2007, Assertive is one of the UK's longest running SEO agencies. Serving over 100 clients in the UK and worldwide.Service mixEstimated
- Mobile App Development17%
- Pay Per Click17%
- Search Engine Optimization17%
- Social Media Marketing17%
- Web Design16%
- Web Development16%
Estimated — this listing has not been verified by the agency and was last updated in 2026.
Industries served
Business servicesConsumer products & servicesHospitality & leisureManufacturingMedicalRetailUtilities
- Founded
- 2007
- Team size
- 1-10 employees
- Hourly rate
- $100 - $149 / hr
