Why Assertive
Why Choose Assertive?
You have hundreds of SEO agencies to choose from. Here's why brands like Lenovo, BNP Paribas, Allianz, Virgin, Easy Group, Sage, SCI-MX, Audley Travel and Emma Sleep have trusted Assertive to deliver organic growth.
Assertive isn't a typical SEO agency. We've been doing search since 2007. We're founder-led. Our SEOs are senior-only. We've built our own proprietary big-data SEO software. And we rank our own assets, not just our clients'.
Trusted by Leading Brands
01 / Our History
Established Since 2007 Nearly Two Decades Of Search
Assertive has been running SEO campaigns since 2007, making us one of the longest-established specialist SEO agencies in the UK.
Search has changed almost beyond recognition in that time. We were here before Penguin and Panda. Before mobile-first indexing. Before BERT, MUM and the Helpful Content Updates. Before the 2024 Content Warehouse and NavBoost leaks rewrote how the industry thought about ranking signals. And now, before AI Overviews, Google AI Mode and LLM citations are reshaping the SERP again.
Every major algorithm update, ranking system change and new search modality has been navigated by our team in real time with real client revenue on the line.
What this means for you: institutional memory you can't buy. We don't experiment on your domain. We apply patterns we've seen play out across hundreds of campaigns, niches and updates over 18+ years of unbroken trading.
02 / Leadership
Founder-Led, Not Account-Manager-Led
Assertive was founded by Daniel Foley Carter in 2007, prior Daniel had worked for some of the largest SEO agencies globally before founding Assertive Media. Having worked in large agencies, Daniel had seen gaps in the market in regards to true SEO expertise as well as account management & client handling, subsequently Daniel went on to found the agency & since the ethos and goals have remained the same.
Daniel has:
- Has 104,000+ followers on LinkedIn, publishing daily on technical SEO, algorithmic shifts and search analytics
- Personally oversees client strategy and is involved in QA on senior accounts
- Built and operates SEO Stack our proprietary GSC data warehousing platform, used by 4,000+ SEOs globally
- Is regularly cited and quoted across the wider search industry
- Personally trains every SEO who joins the Assertive team
What this means for you: continuity, accountability and senior-level thinking on every campaign. The person you trust with your strategy is the same person whose name is on the door.
03 / Our Team
Senior SEOs Only Minimum 10 Years' Experience Each
The dirty secret of the agency world is that most “SEO teams” are one or two senior strategists fronting a roster of junior account managers doing the actual work.
We refuse to operate that way. Every SEO at Assertive has a minimum of 10 years' hands-on experience and most have considerably more. Our SEO vetting criteria include:
- Minimum 10 years of hands-on, in-the-weeds SEO experience
- Demonstrable track record of moving rankings on competitive terms in competitive niches
- Strong technical SEO competence log file analysis, rendering, indexation, JavaScript SEO and Core Web Vitals
- Practical experience with enterprise-grade crawlers (Screaming Frog, Sitebulb, Botify or OnCrawl)
- Working fluency in Google Search Console, BigQuery and at least one BI tool
- Critical-thinking assessment tested on novel SEO problems with no obvious answer
- Reference checks with previous clients or employers
- Trial period on real (anonymised) campaigns before live client placement
What this means for you: when you get on a call with your Assertive SEO, you're speaking with someone who has been solving problems like yours for a decade or more.
40+ In-House Specialists
Average 12+ years experience
10+
Min. years per SEO
25+
Founder's years in search
17+
Industries covered
500+
Brands supported
Our QA Process
- Technical work reviewed by a second senior SEO before being sent
- Audits, strategies and recommendations are peer-reviewed for completeness and accuracy
- Content reviewed for editorial quality, factual accuracy and on-page SEO compliance before publication
- Link acquisition campaigns reviewed against strict quality criteria relevance, authority, editorial context and risk profile
- Senior accounts have founder-level sign-off on strategic direction and material changes
04 / Quality
Internal QA & Quality Review On Every Deliverable
Quality assurance at Assertive isn't a final tick-box. It's built into the workflow. Every deliverable that goes to a client passes through a structured internal QA process.
We have written quality criteria for each deliverable type, and we audit ourselves against them. If something doesn't meet the bar, it doesn't ship. If something has shipped that doesn't meet the bar, we fix it at our cost, on our time.
What this means for you: predictable, consistent, professional output. No junior mistakes slipping through. No surprises in your monthly report.
05 / Technology
Big Data Driven Built On Our Own SEO Software
Most agencies pay for the same SEO tools you can buy yourself Ahrefs, Semrush, Screaming Frog. So do we. But we've also built our own.
Assertive built SEO Stack a Google Search Console data warehousing and analytics platform now used by over 4,000 SEOs and brands worldwide. SEO Stack stores every query, page, country and device-level GSC data point indefinitely giving us a competitive intelligence advantage no third-party tool can match.
- Striking-distance keyword analysis on millions of historical queries surfacing revenue opportunities most agencies never see
- Content decay detection identify pages bleeding traffic before the impact hits your bottom line
- Cannibalisation detection at scale surface URL conflicts competing agencies' tools simply miss
- New vs lost queries reporting week on week, month on month, year on year
- Branded vs non-branded splits so you actually know what's organic growth vs brand demand
- Custom AI annotations layered onto your data algorithm updates, content changes and technical deployments on one timeline
- Query intent drift detection spotting when a SERP's intent shifts before your rankings collapse
What this means for you: better decisions, bigger data sets, faster identification of opportunities and threats a material competitive advantage agencies relying solely on third-party tools cannot replicate.
06 / Industries
Genuine Cross-Niche Expertise
We work and rank across 17+ industries, including some of the most regulated, competitive and technically demanding niches in search.
Breadth matters. We have direct experience with the YMYL standards, technical complexity and content sensitivities specific to your sector and we see patterns across industries that single-niche agencies simply cannot offer.
What this means for you: we've already solved the problems your industry will throw at us. We won't be learning on your dime.
07 / Track Record
A Track Record With Recognised Global Brands
Since 2007 we've been trusted to deliver SEO campaigns for brands across markets, languages, technical stacks and competitive landscapes.
What this means for you: we've operated at the scale, scrutiny and pace that enterprise clients require. We understand procurement, legal, compliance, dev cycles, CMS limitations, multi-stakeholder reporting and the realities of executing inside a large organisation.
08 / Content & PR
Content & Digital PR Firepower At Scale
Modern SEO is a content and authority game as much as a technical one. We're built for both.
- A large, vetted pool of senior SEO writers across niches including regulated sectors (medical, legal, financial)
- Subject-matter expert (SME) writers and reviewers for YMYL content
- In-house and partner digital PR specialists
- Direct relationships with journalists and editors at national and trade publications
- Established HARO, Featured, Qwoted and SourceBottle workflows for earned mentions and authoritative links
- Proven systems for ideating, pitching and landing data-led campaigns and digital PR stories at scale
What this means for you: we can scale content production and earned link acquisition without compromising quality. We don't buy links from networks. We earn citations and coverage in publications that move the needle on real authority.
Content & PR Capabilities
09 / Proof
We Rank Our Own Assets
The clearest possible proof that an SEO agency knows what it's doing is whether the agency itself ranks.
Most don't. We do. Assertive ranks competitively for SEO-agency-related terms in the UK. Our sub-brands rank too SEO Stack ranks competitively in the GSC analytics SaaS space, and SEO Audits IO ranks in the technical SEO auditing space.
We use the same techniques, the same data, the same QA standards on our own assets that we use on client work.
What this means for you: we have skin in the game. We can show, not just tell.
10 / The Honest Pitch
What We Will and Won't Promise
We're not going to promise you the number-one ranking on a competitive head term in 90 days. Anyone who does is either lying or about to do something that will hurt you when the next algorithm update lands.
That's why most of our clients stay with us for 1, 3, 5+ years. That's why our pipeline is largely referral-led. And that's why we'd rather lose a pitch than over-promise on it.
Frequently Asked Questions
We work on flexible agreements most clients stay with us for 1, 3 and 5+ years because of results, not because they're locked in. We'd rather earn your retention month on month.
SEO is a compounding channel. Most clients see meaningful movement within 3–6 months, with stronger gains from 6–12 months onward. We'll be upfront about realistic timelines for your specific situation at proposal stage.
Yes. We integrate with in-house marketing, development and content teams regularly. We can work as a standalone agency, a strategic overlay, or a hybrid model whatever suits your structure.
Monthly reporting is standard, with weekly check-ins for active campaigns. You'll always have access to live dashboards built on your own first-party GSC data via SEO Stack.
Yes we've delivered enterprise SEO for brands including Lenovo, BNP Paribas, Allianz, Virgin and Sage. We understand procurement, compliance, dev cycles and multi-stakeholder reporting at scale.
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