Across the UK, the fight for digital prominence is shifting into new territory. Large language models are now shaping how information is found, trusted, and presented — often before a user even reaches a search results page. This is creating a new layer of competition: not just to appear in search, but to become the source that AI chooses to answer with.
For brands, that demands more than familiar SEO tactics. It calls for strategies that merge technical optimization, semantic clarity, and authority building — all adapted to how LLMs process and prioritize information. The goal isn’t just visibility; it’s being selected as the definitive response when a question is asked.
The agencies in this guide operate with that mindset. They combine deep search expertise with an understanding of how AI-driven platforms work, enabling UK businesses to secure influence where it counts most — inside the answers customers receive.
At LenGreo, we help UK businesses claim their place in the rapidly evolving search environment by making their expertise easy for both people and large language models (LLMs) to find, understand, and trust. From established market leaders to ambitious scale-ups, we design strategies that position brands as the authoritative answer in AI-driven search results. Our process begins with an in-depth technical audit to uncover any barriers to AI search visibility, followed by the integration of advanced LLM SEO techniques, answer engine optimization (AEO), and targeted authority-building into a cohesive plan that reflects your goals and market. This ensures that your brand not only ranks in traditional search but also becomes a reliable source for AI platforms generating instant responses.
Beyond search, our campaigns bring together paid media, digital PR, and content marketing into a single, performance-focused strategy. This multichannel approach strengthens the signals that LLMs and search engines use to evaluate trust and relevance — keeping your brand consistently in front of the audiences that matter most. By aligning technical precision with creative execution, we ensure your presence is both discoverable and influential, wherever AI and human decision-making intersect.
Key Services:
- LLM SEO & AEO strategy for AI-driven visibility
- Technical SEO audits & structured data implementation
- Content creation and optimization for AI readability
- Digital PR & high-authority link acquisition
- Paid media management (PPC, LinkedIn, Meta)
- Market research & competitive analysis
Key Highlights:
- Proven record of improving AI search visibility for UK clients
- Expertise across multiple industries, from tech to retail
- Strategies designed to integrate compliance, trust, and reach
Key Achievements:
- SEO Search Award Finalist, with a multiple-time award-winning strategist on the team
- Delivered measurable increases in AI-based brand recommendations
Contacts:
Impression is a UK digital marketing agency known for combining technical SEO excellence with innovative digital strategies. Their team integrates structured data optimization, semantic keyword research, and AI-assisted analysis to enhance performance in both traditional search and LLM-driven environments. By blending creative content marketing with robust technical foundations, Impression helps brands achieve consistent visibility across search formats and AI-curated responses. They have worked with brands across sectors, adapting their strategies to meet the unique demands of AI search while ensuring compliance with industry regulations. With a data-led approach, Impression builds campaigns that not only improve rankings but also secure authoritative placements in AI-generated answers.
Key Services:
- Search engine optimization (SEO)
- Pay-per-click (PPC) advertising
- Digital PR and link building
- Conversion rate optimization (CRO)
- Analytics and data strategy
- Content marketing and creative campaigns
Key Highlights:
- Strong record of SEO performance for UK brands
- Uses AI tools for keyword research and content planning
- Combines technical optimization with creative campaigns
- Experience in both B2B and B2C sectors
- Emphasis on measurable business outcomes
Contact Information:
- Website: impressiondigital.com
- Contact Email: hello@impressiondigital.com
- Phone Number: +44 115 824 2212
- LinkedIn: linkedin.com/company/impression-digital
- Twitter: twitter.com/impressiontalk
- Instagram: instagram.com/impressiondigital
Re:signal is an award-winning UK SEO agency specialising in strategic organic growth. They employ LLM SEO principles, such as semantic content structuring and advanced entity optimization, to increase brand relevance in AI-powered search platforms. With a focus on long-term ROI, Re:signal works closely with clients to refine their search presence while ensuring content is AI-ready and positioned for authority. Their collaborative process includes deep audience research and technical refinement, allowing them to anticipate algorithmic trends and maintain lasting visibility. This adaptability makes them a trusted partner for brands aiming to dominate AI-curated search results over the long haul.
Key Services:
- SEO strategy and consultancy
- Content marketing and optimization
- Technical SEO audits and implementation
- Keyword research and mapping
- Analytics and performance measurement
- Link acquisition and outreach
Key Highlights:
- Expertise in SEO for competitive UK industries
- Applies AI insights to guide content and optimization
- Focused on long-term organic growth
- Proven track record with large-scale campaigns
- Transparent and collaborative working style
Contact Information:
- Website: resignal.com
- Contact Email: hello@resignal.com
- Phone Number: +44 20 7288 6262
- LinkedIn: linkedin.com/company/resignal
- Twitter: twitter.com/resignal
- Instagram: instagram.com/resignal
Builtvisible is a London-based agency delivering data-led SEO, content, and digital PR strategies. They leverage AI-assisted keyword clustering, structured data implementation, and content modelling to improve discoverability in both search engines and LLM-curated responses. Their campaigns aim to strengthen brand authority through a combination of technical precision and creative storytelling. With a strong track record of scaling organic visibility for complex sites, they are skilled at transforming technical recommendations into impactful, AI-friendly content strategies. Builtvisible’s blend of analytics expertise and creative execution ensures brands remain competitive in the evolving AI search landscape.
Key Services:
- SEO audits and technical implementation
- Content strategy and optimization
- Digital PR and outreach campaigns
- Analytics and data visualisation
- Site migrations and performance monitoring
- Keyword research and topic clustering
Key Highlights:
- Strong focus on technical SEO and data integration
- Uses AI-driven analysis for content planning
- Experience with UK and international brands
- Skilled in aligning content with search intent
- Emphasis on sustainable organic growth
Contact Information:
- Website: builtvisible.com
- Contact Email: hello@builtvisible.com
- Phone Number: +44 20 7407 8498
- LinkedIn: linkedin.com/company/builtvisible
- Twitter: twitter.com/builtvisible
- Instagram: instagram.com/builtvisible
Blue Array is one of the UK’s largest specialist SEO agencies, blending the agility of a boutique firm with the reach of a large team. They integrate LLM SEO considerations into campaigns by optimizing site architecture, applying schema markup, and developing content frameworks that are easily interpreted by AI-driven platforms. Their training programs and transparency-first approach make them a trusted partner for brands aiming to adapt to the future of search. With extensive experience across both corporate and high-growth clients, Blue Array delivers strategies that scale without sacrificing quality. Their proactive adoption of AI-readiness ensures clients are positioned for the next generation of search visibility.
Key Services:
- SEO consultancy and strategy
- Technical SEO and site audits
- Keyword research and content mapping
- SEO training and workshops
- Link building and outreach
- Analytics and reporting
Key Highlights:
- Works with a wide range of UK-based sectors
- Implements schema and structured data for AI visibility
- Strong emphasis on knowledge sharing and education
- Collaborative approach with in-house teams
- Focus on sustainable, long-term SEO gains
Contact Information:
- Website: bluearray.co.uk
- Contact Email: hello@bluearray.co.uk
- Phone Number: +44 118 321 8651
- LinkedIn: linkedin.com/company/blue-array
- Twitter: twitter.com/BlueArraySEO
- Instagram: instagram.com/bluearrayseo
Hallam is a Nottingham-based digital agency offering integrated marketing services, including advanced SEO strategies. They adapt their SEO delivery for LLM-driven search by focusing on semantic optimization, topical authority, and content structures that AI systems can easily process. Hallam’s approach combines data insights with creative execution to deliver campaigns that resonate with both algorithms and audiences. Their cross-disciplinary team brings together SEO, content, and design expertise to create cohesive campaigns that work across all channels. This holistic approach allows Hallam to strengthen a brand’s authority in both human and AI-curated search results.
Key Services:
- SEO and technical audits
- Pay-per-click (PPC) advertising
- Content strategy and production
- Digital PR and outreach
- Web design and development
- Analytics and conversion optimization
Key Highlights:
- Proven success with UK and international campaigns
- Uses AI tools to refine keyword and topic clusters
- Delivers integrated SEO and creative content strategies
- Experience across B2B and B2C sectors
- Emphasis on measurable performance metrics
Contact Information:
- Website: hallaminternet.com
- Contact Email: hello@hallaminternet.com
- Phone Number: +44 115 948 0123
- LinkedIn: linkedin.com/company/hallam-internet
- Twitter: twitter.com/HallamInternet
- Instagram: instagram.com/hallaminternet
Operating globally with a strong UK presence, Peak Ace delivers performance-driven SEO services that account for the changing nature of search. Their adoption of LLM SEO practices includes structured data deployment, entity-based optimization, and AI-assisted keyword targeting. By combining technical SEO with multilingual and international expertise, they help UK brands expand their reach in both domestic and overseas markets. Peak Ace’s ability to adapt strategies for different cultural and linguistic contexts ensures AI systems recognize brand relevance across multiple regions. This international scope makes them an ideal choice for UK companies targeting global audiences through AI-driven discovery.
Key Services:
- SEO and technical optimization
- Content creation and localisation
- Paid search and display advertising
- Conversion rate optimization (CRO)
- Digital analytics and reporting
- International and multilingual SEO
Key Highlights:
- Experience with UK-based and global campaigns
- Integrates LLM-aware optimization techniques
- Strong technical SEO foundation
- Skilled in scaling international search presence
- Uses AI-driven data insights to guide strategies
Contact Information:
- Website: peakace.agency
- Contact Email: hello@peakace.agency
- Phone Number: +49 30 8321 7510
- LinkedIn: linkedin.com/company/peak-ace-ag
- Twitter: twitter.com/peakaceag
- Instagram: instagram.com/peakace.agency
8. Salience Search Marketing
Salience Search Marketing focuses on building brand authority and search visibility through content-led SEO strategies. Their adoption of LLM SEO practices includes crafting semantically rich content, implementing structured data, and optimizing internal linking to improve AI interpretability. Based in Chester, they work with UK brands across sectors to strengthen both traditional rankings and AI search positioning. Their team’s deep understanding of content authority allows them to target high-value queries that AI platforms prioritize. By aligning on-page factors with AI’s ranking signals, Salience helps brands secure and maintain a strong presence in evolving search environments.
Key Services:
- SEO strategy and implementation
- Content creation and optimization
- Technical SEO audits
- Link building and outreach
- Local SEO campaigns
- Analytics and performance reporting
Key Highlights:
- Experience across a range of UK industries
- Integrates semantic optimization for LLM-driven search
- Strong focus on content authority
- Offers technical and creative SEO solutions
- Emphasis on sustainable organic growth
Contact Information:
- Website: salience.co.uk
- Contact Email: hello@salience.co.uk
- Phone Number: +44 1244 564 300
- LinkedIn: linkedin.com/company/salience-search-marketing
- Twitter: twitter.com/saliencesearch
- Instagram: instagram.com/saliencesearch
Click Consult is an award-winning UK agency delivering SEO strategies that merge technical expertise with creative content marketing. They apply LLM SEO principles by enhancing site structure, refining topical relevance, and deploying schema to increase visibility in AI-driven search. Their campaigns are built to deliver measurable results while adapting to the changing nature of online discovery. Click Consult’s blend of technical rigour and creative execution ensures that brands are discoverable in both traditional SERPs and AI-generated recommendations. Their ability to tailor strategies to industry-specific challenges makes them a versatile partner for companies aiming to secure long-term AI search visibility.
Key Services:
- SEO and technical optimization
- Paid search (PPC) management
- Content marketing and outreach
- Digital PR campaigns
- Social media marketing
- Analytics and reporting
Key Highlights:
- Strong UK client base across sectors
- Uses AI tools for content and keyword planning
- Skilled in both technical and creative SEO
- Emphasis on measurable outcomes
- Experience with large-scale campaign delivery
Contact Information:
- Website: click.co.uk
- Contact Email: sales@click.co.uk
- Phone Number: +44 844 241 1111
- LinkedIn: linkedin.com/company/click-consult
- Twitter: twitter.com/clickconsult
- Instagram: instagram.com/clickconsult
Screaming Frog is best known for its industry-leading SEO Spider software, but the agency side of the business delivers high-level SEO consultancy and campaigns. They incorporate LLM SEO by focusing on data-driven technical analysis, structured content optimization, and entity-based improvements to make client sites AI-search friendly. With their deep technical expertise, they are well-positioned to help UK brands adapt to the future of search. Their work often involves complex site audits and migrations, where precise technical execution is crucial for maintaining authority signals. By pairing advanced data analysis with AI-aware content strategies, Screaming Frog ensures brands remain competitive in the rapidly evolving search landscape.
Key Services:
- SEO audits and consultancy
- Technical SEO and site optimization
- Content strategy and optimization
- Keyword research and topic mapping
- Competitor analysis and benchmarking
- Analytics and reporting
Key Highlights:
- Renowned for technical SEO expertise
- Applies LLM-focused structuring for AI discoverability
- Trusted by UK brands in competitive markets
- Strong emphasis on data-driven insights
- Experienced in complex site audits and migrations
Contact Information:
- Website: screamingfrog.co.uk
- Contact Email: info@screamingfrog.co.uk
- Phone Number: +44 1491 415070
- LinkedIn: linkedin.com/company/screaming-frog
- Twitter: twitter.com/screamingfrog
- Instagram: instagram.com/screamingfrogseo
The SEO Works is a Sheffield-based agency offering SEO, PPC, and web services to clients across the UK. Their approach to LLM SEO includes semantic content planning, structured data integration, and authority-building campaigns designed to improve visibility in AI-powered search results. They are known for delivering results-oriented strategies tailored to each client’s objectives. By combining strong technical foundations with content designed for topical authority, they help brands become the go-to answer for relevant AI-driven queries. This targeted approach ensures their clients are positioned to capture attention at critical decision-making moments.
Key Services:
- SEO strategy and delivery
- Pay-per-click (PPC) advertising
- Content marketing and optimization
- Web design and development
- Local SEO campaigns
- Digital PR and outreach
Key Highlights:
- Works with diverse UK industries
- Implements AI and LLM-friendly optimization methods
- Offers combined SEO and PPC strategies
- Emphasis on data-driven decision-making
- Recognised for delivering consistent results
Contact Information:
- Website: seoworks.co.uk
- Contact Email: info@seoworks.co.uk
- Phone Number: +44 114 399 0212
- LinkedIn: linkedin.com/company/the-seo-works
- Twitter: twitter.com/TheSEOWorks
- Instagram: instagram.com/theseoworks
Rise at Seven is a creative SEO and PR agency with offices in Sheffield and London. They bring LLM SEO into their campaigns through entity-based optimization, advanced keyword targeting, and content engineered to be both linkable and AI-readable. Known for their bold creative approach, they have delivered campaigns for some of the UK’s biggest consumer brands. Their ability to generate high-authority backlinks from creative PR campaigns strengthens the trust signals that AI platforms rely on. This mix of creativity and technical precision allows them to amplify brand visibility far beyond conventional search.
Key Services:
- SEO and technical optimization
- Digital PR and creative campaigns
- Content strategy and production
- Social media activation
- Paid media management
- Analytics and performance reporting
Key Highlights:
- Combines creative campaigns with technical SEO
- Integrates LLM optimization into content workflows
- Experience with high-profile UK and global brands
- Skilled at generating high-authority backlinks
- Focuses on brand visibility in competitive niches
Contact Information:
- Website: riseatseven.com
- Contact Email: hello@riseatseven.com
- Phone Number: +44 114 303 0044
- LinkedIn: linkedin.com/company/riseatseven
- Twitter: twitter.com/RiseAtSeven
- Instagram: instagram.com/riseatseven
13. Distilled (Brainlabs)
Now part of Brainlabs, Distilled retains its strong heritage in technical SEO and content strategy. Their LLM SEO approach focuses on structured data implementation, semantic optimization, and improving site architectures so that AI search systems can easily identify authoritative answers. They work with enterprise clients as well as ambitious mid-sized businesses. Distilled’s expertise in solving complex SEO challenges makes them a trusted choice for high-stakes projects. Their forward-looking approach ensures that content and site structures remain adaptable to the rapidly shifting demands of AI search algorithms.
Key Services:
- SEO strategy and consultancy
- Technical SEO and audits
- Content optimization and creation
- Conversion rate optimization (CRO)
- Analytics and measurement
- Site migrations and replatforming
Key Highlights:
- Strong legacy in technical SEO innovation
- Applies structured data for AI search visibility
- Works with enterprise and mid-market brands
- Skilled in complex SEO problem-solving
- Emphasis on measurable business results
Contact Information:
- Website: brainlabsdigital.com
- Contact Email: hello@brainlabsdigital.com
- Phone Number: +44 20 7183 3435
- LinkedIn: linkedin.com/company/brainlabs
- Twitter: twitter.com/Brainlabs
- Instagram: instagram.com/brainlabs
Barracuda Digital is a London-based SEO and PPC agency with over two decades of experience. Their campaigns incorporate LLM SEO by using AI-assisted keyword research, semantic optimization, and content frameworks designed to be interpreted by AI search engines. They specialise in both e-commerce and lead-generation strategies. With a strong history in delivering ROI-focused campaigns, Barracuda blends AI-ready tactics with proven commercial strategies. This balance enables brands to maintain visibility across both traditional and next-generation search environments.
Key Services:
- SEO strategy and delivery
- Paid search (PPC) campaigns
- Content marketing and optimization
- Technical SEO and audits
- Link building and outreach
- Analytics and performance tracking
Key Highlights:
- Long-standing presence in the UK search industry
- Integrates AI-driven insights into SEO campaigns
- Skilled in e-commerce and lead-gen SEO
- Offers combined organic and paid strategies
- Focuses on measurable ROI
Contact Information:
- Website: barracuda.digital
- Contact Email: info@barracuda.digital
- Phone Number: +44 20 7079 2100
- LinkedIn: linkedin.com/company/barracuda-digital
- Twitter: twitter.com/Barracuda_UK
- Instagram: instagram.com/barracudadigital
Liberty Marketing is a Cardiff-based agency providing SEO, PPC, and content marketing services to brands across the UK. Their LLM SEO approach focuses on creating structured, authoritative content that can be surfaced by AI-powered search platforms, while also maintaining strong traditional rankings. By integrating AI-informed keyword targeting into their campaigns, they help brands secure placements where high-intent searches happen. Their focus on combining technical precision with compelling content makes Liberty Marketing a strong ally for businesses aiming to influence both AI and human-driven discovery.
Key Services:
- SEO strategy and implementation
- Paid search and social media advertising
- Content strategy and creation
- Digital PR and outreach
- Technical SEO audits
- Analytics and reporting
Key Highlights:
- Works with clients in both B2B and B2C sectors
- Uses AI-informed keyword and content planning
- Skilled in balancing creative and technical SEO
- Strong record of improving organic visibility
- Focus on long-term search performance
Contact Information:
- Website: libertymarketing.co.uk
- Contact Email: info@libertymarketing.co.uk
- Phone Number: +44 29 2076 6467
- LinkedIn: linkedin.com/company/liberty-marketing
- Twitter: twitter.com/libertymarketing
- Instagram: instagram.com/libertymarketing
Conclusion
In the UK’s fast-moving digital market, the brands shaping search outcomes are the ones that understand how large language models decide what to show — and who to trust. This isn’t about chasing trends; it’s about building a foundation that AI can recognise as authoritative and relevant, again and again.
That requires precision in technical setup, clarity in content, and a strategy that ties every optimization to measurable outcomes. The agencies featured here approach that challenge from different angles, but they share a common focus: ensuring their clients aren’t just present in AI-powered results, but hold a position of influence there.
For UK businesses, this is more than a marketing opportunity — it’s a competitive safeguard. The brands investing in LLM SEO today are laying the groundwork to lead tomorrow’s search conversations, long before the rest of the market catches up.
