Case Study
One of our most recent marketing client case studies

Assertive have been a useful asset for our marketing efforts. They’ve been responsive & adaptive to our needs – I wouldn’t hesitate to recommend them.

- Larisa Lucaciu (Head of Marketing)
We're one of the UK's leading digital marketing & SEO agencies, Based in London, Here for you since 2007.
Search Engine Optimisation

Specialist, Highly Bespoke Technical SEO Services for Medium & Large Organisations.

Pay Per Click

Effective Return on Investment Driven PPC Services & Optimisation on Google & Bing Ads.

Conversion Rate Optimisation

Professional conversion optimisation & user retention services for Medium & Large Businesses.

Good quality search engine optimisation is far more than just writing content, changing your title tags and building links – it’s about giving your website visitors & potential customers what they are looking for & whilst building a trusted website and brand.

As search & digital marketing practices evolve it is vital to ensure your business is ahead of the curve. This means constant algorithm background research & pro-active website management can ensure that your business remains ahead of the game. As algorithms evolve & as Google becomes smarter, ranking techniques change – we adopt a pragmatic approach to ensuring all of our SEO clients remain above the best practice line.

Our focus is to ensure your searching audience becomes real-life, engaged website visitors who want to buy your product, use your service & spend money with your business thanks to smart, data-driven SEO marketing from one of the UK’s best SEO agencies.

Clients We Work With

As an award-winning SEO company we know what it takes to get results that deliver more traffic, more revenue, more enquiries for your business.

Our Digital Expertise
Below are some of our top level digital services.
SEO Services

Our SEO agency in London delivers premium SEO services to help drive strong organic growth.

PPC Services

If you are looking for a digital marketing agency to handle your PPC, look no further.

Digital Marketing

Is your business looking for SEO & PPC, Display or Remarketing? Our SEO Agency offers integrated digital marketing.

Site Auditing

We provide full SEO, User Experience & Conversion Auditing for websites.

Content Services

We create compelling content marketing strategies as well as content copywriting.

Link Outreach

Link Building & SEO agency Outreach Campaigns to drive strong authority & organic growth.

Where we are featured and accreditations

Why use Assertive as your SEO Company?

As a highly respected UK SEO company, we treat our SEO services as a science – good search engine optimisation (search engine optimization if you’re in the US) involves solid keyword research, competitive analysis, marketplace analysis & a proper testing methodology to drive up landing page content relevance, engagement & overall user experience. Our approach as a multi-award winning SEO agency is to look at how an SEO strategy can deliver the quickest possible revenue growth for your business. We don’t follow the traditional SEO agency model, we incorporate everything from user experience optimisation through to dynamic web design & even brand development using social media. Choose Assertive because we genuinely get results, we care about YOUR business & YOUR prospective clients/customers. We were rated one of the TOP SEO Companies from 2014 to 2018 by the BBB & were recognised by the DRUM search awards in 2019 & 2020.

We’ve been established in the SEO industry for more than 20 years with each specialist SEO consultant having over 10 years experience – meaning your business gets all the benefits of a highly experienced search engine optimisation specialist without the premium costs associated. Our expertise echos across communities including SEMRUSH, Search Engine Land, MOZ and other platforms where we’ve contributed content, SEO insights and more! Our expertise extends above and beyond organic search – we combine SEO with all modern AI and user interaction factors to help position your business in Google where it needs to be, at the top of search results.


SEO Services

We deliver comprehensive SEO services for UK & Global Businesses, from your local SEO campaigns through to International SEO strategies – each tailored to your businesses needs. Our SEO service is never packaged – each search engine optimisation campaign is unique – the perfect tailored digital marketing strategy that incorporates everything from content writing to link building, landing page speed optimisation through to conversion optimisation. We offer Shopify SEO, Laravel SEO, WordPress SEO, Magento SEO & a wide range of bespoke digital strategy services.

We’re not just an amazing SEO services company, we’re also exceptionally good at responsive web design, web development and of course, we optimise everything we build, or, if you are looking to ramp up your digital PR efforts, social media marketing strategy or maybe you need a professional content marketing strategy – we’ve got everything you need – consider us your digital toolkit.

Latest News
See the latest news, information and articles from Assertive.
Client Testimony
What our clients say about the service we deliver.

Not just any old SEO agency

Assertive has been around a long time and we’ve seen the digital marketing field explode with new agencies. We know what it’s like to be in a competitive industry and yet, we still differentiate ourselves in the way we plan our SEO strategy campaigns, how we deliver high-performance digital campaigns and how we treat our clients. We’re one of the highest-rated SEO agencies in the UK, not just because we have exceptional client testimony but also because we’re well connected with CEO’s, CFO’s and HOM in corporate brand / large organisations.

What ever your website audience targeting is – we’ll deliver a working SEO strategy to help build new website traffic, improving your businesses overall marketing strategy, leveraging one of the oldest, most important marketing channels there is – SEO.

Specialists in Organic Search

Our SEO specialists stay ahead of the curve and up to date with the latest SEO agency techniques, best practices, user experience training & more to deliver strong organic rankings for clients. From thorough and strategic keyword planning through to full-spectrum Google Analytics / Adobe Analytics analysis, user intent modelling, user attribution & personas, and more. An SEO company is only as good as the team within it which is why we have one of the best vetting processes in place for new SEO account directors. If you are looking for long term organic search success & top rankings in Google, let us help! Dominate search results today with the Assertive UK, your next SEO agency in London.