Digital Marketing Agencies in Sussex: Your Complete Guide to Finding the Right Partner in 2025

Sussex businesses seeking to enhance their online presence and drive measurable growth have access to an exceptional landscape of Digital Marketing Agencies in Sussex. From the vibrant tech hub of Brighton’s “Silicon Beach” to the historic market towns of East and West Sussex, the region hosts a thriving ecosystem of marketing specialists ready to transform your digital strategy. With the UK digital marketing industry projected to reach £86.35 billion by 2034 and Sussex businesses increasingly recognizing that digital marketing delivers the best ROI for almost half of UK businesses, partnering with the right agency has never been more critical.

This comprehensive guide explores the leading Digital Marketing Agencies in Sussex, providing detailed insights into their services, specializations, pricing structures, and proven track records. Whether you’re a small business in Worthing, an ecommerce brand in Eastbourne, or a growing enterprise in Horsham, you’ll discover agencies equipped to elevate your digital presence.

Why Sussex Businesses Need Digital Marketing More Than Ever

The South East region, which includes Sussex, hosts approximately 906,000 SMEs representing 99.9% of all businesses in the area. These businesses contribute significantly to the region’s economy, and increasingly, their success hinges on effective digital marketing strategies. According to LOCALiQ’s 2025 UK State of Digital Marketing Report, 72% of UK marketing professionals now allocate the majority of their budgets toward online marketing projects.

The shift toward digital has accelerated dramatically, with UK digital advertising spending reaching £29.6 billion in 2023—nearly triple the amount reported in 2017. For Sussex businesses competing in sectors from hospitality to professional services, this digital-first approach is no longer optional; it’s essential for survival and growth.

Top Digital Marketing Agencies in Sussex

1. Artemis Marketing (Sussex-Wide)

Artemis Marketing stands out as one of the most decorated Digital Marketing Agencies in Sussex, having been recognized as one of The Sunday Times Best Places to Work 2025 and winning a Silver Stevie Award 2025 for small budget marketing campaign of the year.

Founded: 2004 (over 21 years of experience)
Location: Sussex-wide coverage
Founders: Mike Knivett and Justin Aldridge
Specializations: SEO, AI search optimization (ChatGPT, Claude, Perplexity), GEO (Generative Engine Optimization), eCommerce, local business SEO

What Sets Them Apart:
Artemis Marketing has positioned itself at the forefront of AI-driven search optimization, developing proprietary systems to ensure clients appear in traditional search engines and AI chatbot results. Their expertise in both traditional SEO and emerging AI search platforms makes them particularly valuable for businesses wanting to stay ahead of digital marketing trends.

The agency maintains exceptional transparency with over 170 five-star independent reviews on FreeIndex and a proven track record of delivering measurable results. One client from the lingerie eCommerce sector reported sales increases of over 40% with significant traffic and ranking boosts.

Client Testimonials:

• “I’ve been working with Artemis Marketing since November for technical SEO and link building for my lingerie eCommerce website and the results have been phenomenal! My sales have increased by over 40%.” – Ouh La La Lingerie
• “After over two years, we are still super impressed with Mike and all the team at Artemis Marketing who are total professionals in all they do with SEO and online visibility.” – Onske

Services: Technical SEO, content marketing, link building, website development, paid search, conversion rate optimization, AI search optimization

Website: https://artemis.marketing/

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2. Fandango Digital (Chichester, West Sussex)

Fandango Digital is a boutique digital marketing agency based in Chichester that prides itself on delivering business-changing results with a personal touch. With over 20 years of combined experience across their team, Fandango Digital has built a reputation for treating client brands as extensions of their own business.

Location: Chichester, West Sussex
Team Size: Small, dedicated team ensuring personalized service
Specializations: SEO, PPC, Conversion Rate Optimization (CRO), Social Media Marketing, Content Marketing

What Sets Them Apart:
Fandango Digital’s boutique approach means every team member has in-depth knowledge of client businesses. They work across multiple sectors, from international sports teams to national specialist brands and local companies, all with the common objective of raising brand awareness and growing conversions.

Client Testimonials:

• “Working with Fandango Digital has been an amazing experience for our company. We are more than confident in them, which is why we choose to partner on clients projects to get exceptional results.”
• “Carla and the team form an invaluable part of what we do here at Recenseo. They go above and beyond to understand the overarching marketing strategies we develop for our clients.”

Services: Search Engine Optimization, Paid Search campaigns, Conversion Rate Optimization, social media strategy, content marketing, creative design

Website: https://www.fandangodigital.co.uk/

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3. Britweb (Horsham, West Sussex)

Britweb is a market leader in web design and digital marketing based in Horsham’s bustling heart. The agency combines technical expertise with creative flair to deliver comprehensive digital marketing services that drive measurable results.

Location: Horsham, West Sussex
Coverage: Sussex, South East England, nationwide
Specializations: Full-service digital marketing, SEO, PPC, social media marketing, email marketing, content creation

What Sets Them Apart:
Britweb’s specialists bring together diverse skill sets under one roof, creating tailored digital marketing strategies designed specifically for each business. They emphasize excellent onboarding experiences and provide monthly reports with regular meetings to ensure clients maximize their investment.

Client Testimonials:

• “Great team helped us loads with our social media marketing as well as website management, positive meetings leading to growth in our followers and shared ideas. Really love the time they have taken to do artist interviews as well.”
• “Britweb are simply fantastic at what they do and always deliver positive results. Their strategy for our business has consistently increased users, visitors and conversions.”

Services: SEO, PPC advertising, content marketing, social media management, email marketing, web development, hosting services

Website: https://www.britweb.co.uk/digital-marketing/

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4. PMW Communications (West Sussex)

PMW Communications is an award-winning full-service marketing agency in Sussex that delivers data-driven campaigns combining creativity with analytical precision. Their approach focuses on turning insights into impact through comprehensive research and analysis tools.

Location: West Sussex
Type: Full-service marketing agency
Specializations: SEO, PPC, brand strategy, design, copywriting, PR (traditional and digital), social media

What Sets Them Apart:
PMW Communications distinguishes itself through its dual focus on data and creativity. They utilize cutting-edge systems including Screaming Frog, Agorapulse, Hotjar, Google Analytics, and SEMrush to monitor campaign performance and provide clients with actionable insights and recommendations.

Before launching campaigns, PMW takes time to understand client businesses and brands inside out, allowing them to integrate seamlessly with internal teams and identify the most effective pathways to achieve goals.

Services: Search engine optimization, pay-per-click advertising, website design and development, brand strategy, graphic design, copywriting, traditional and digital PR, social media management (organic and paid)

Website: https://pmwcom.co.uk/

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5. Tomango (Sussex & South East)

Tomango brings over 20 years of experience designing and managing highly effective brand identities, websites, and digital marketing campaigns for organizations across Sussex, Kent, and the South East.

Location: Sussex, serving Kent and the South East
Experience: 20+ years
Specialization: Strategic growth for businesses with £1m-£5m turnover looking to reach £5m-£10m+

What Sets Them Apart:
Tomango specializes in helping small businesses scale strategically, offering a comprehensive approach that guarantees high returns on investment. Their expertise spans brand development, web design, and digital marketing, making them particularly valuable for businesses at critical growth stages.

The agency has worked with diverse sectors including business services, property and architecture, IT and SaaS, helping clients stand out in competitive marketplaces and win multi-million pound contracts.

Services: SEO, Google Ads campaigns, content creation, social media marketing, paid social advertising, brand identity development, website design and development

Website: https://www.tomango.co.uk/

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6. Pratt Digital (Heathfield, East Sussex)

Pratt Digital is a digital marketing and paid search consultancy based near Heathfield in East Sussex, specializing in paid advertising across multiple platforms. As an accredited Google Partner with certifications for Paid Search, Mobile Advertising, Display Advertising, and Shopping, Pratt Digital brings technical expertise to campaign management.

Location: Heathfield, East Sussex (Silveroaks Farm, Hawkhurst Lane, Waldron)
Founded: 2013
Leadership: Lester Pratt
Specializations: Google Ads, Microsoft Ads (Bing), Facebook, Instagram, LinkedIn, Pinterest, YouTube, Amazon Advertising

What Sets Them Apart:
Pratt Digital remains driven to be at the forefront of industry and platform developments, ensuring clients always receive the most up-to-date advice and strategies. They provide both direct client services and white-labeled services to partner agencies, offering paid search expertise without the overhead of building in-house teams.

Their client base spans various sizes and industry verticals, with monthly budgets ranging from a few hundred pounds to tens of thousands.

Client Testimonials:

• “Pratt Digital took the time to fully understand our business, our potential markets and our customer base. Consequently, we now have a solid global PPC strategy that introduces us to hard-to-reach markets and customers.”
• “Pratt Digital are talented, detail-oriented professionals who I can always rely on when the going gets tough.”

Services: Google Ads management, Microsoft Ads, Facebook advertising, Instagram advertising, LinkedIn advertising, YouTube advertising, Amazon marketing, campaign strategy and training

Contact: 01435 515066 | hello@prattdigital.com
Website: https://prattdigital.com/

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7. Tann Westlake (West Sussex & London)

Tann Westlake is an award-winning creative digital agency and official Google Partner with offices in West Sussex and South Bank, London. The agency has built a reputation for making the impossible happen through strategic thinking and creative execution.

Locations: Chichester, West Sussex; South Bank, London
Type: Integrated marketing agency
Google Partner Status: Official Google Partner
Specializations: Brand strategy, WordPress websites, digital marketing, PPC, SEO

What Sets Them Apart:
Tann Westlake combines creative excellence with technical proficiency, working with global, national, regional, and local businesses across diverse industries. Their integrated approach covers everything from brand transformation to lead generation, traffic growth, and PPC campaign management.

The agency develops authentic and collaborative client relationships, positioning themselves as an extension of in-house teams. They understand that project parameters can change and adapt flexibly to client challenges.

Notable Clients: Higher education institutions including University of Brighton, University of Chichester, University of Kent, University of Portsmouth, University of Southampton, University of Sussex

Services: Brand strategy and design, WordPress website development, digital marketing strategy, Google Ads (PPC), SEO, social media marketing, email marketing, analytics and reporting

Website: https://www.tannwestlake.com/

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8. Damteq (Sussex)

Damteq is one of the only Digital Marketing Agencies in Sussex with in-house capabilities to deliver forensic-level technical website optimization. With over 16 years of experience, they focus on growth marketing with data-driven strategies centered on conversions and KPIs.

Location: Sussex
Experience: 16+ years
Type: Outsourced marketing agency
Review Rating: 5/5 based on 207 reviews
Specializations: Technical SEO, humanized marketing, conversion-focused campaigns

What Sets Them Apart:
Damteq has developed a specialized framework for “humanized marketing,” even creating a podcast about their methodology. This approach helps companies become more approachable, credible, and relatable in their marketing efforts.

Their typical clients have 20+ staff, some internal marketing resources, and have worked with agencies before, making them well-suited for established businesses looking for sophisticated marketing management.

Services: Technical SEO campaigns, PPC (Google Ads, paid social), user experience (UX) optimization, content generation, website design and development, marketing automation, CRM integration

Website: https://www.damteq.co.uk/digital-marketing/sussex/

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9. Growth by Design (Sussex)

Growth by Design is an award-winning digital marketing agency in Sussex that functions as an external marketing department for businesses throughout Sussex and the UK. They deliver data-driven, strategic marketing solutions with flexible, tailored packages.

Location: Sussex-wide coverage
Type: Award-winning outsourced marketing services
Approach: Flexible, cost-effective marketing packages
Specializations: Comprehensive digital strategy, paid advertising, content marketing

What Sets Them Apart:
Growth by Design offers truly bespoke services tailored to client goals, challenges, sectors, and budgets. The exact mix of marketing activities is unique to every client and developed through direct consultation. They’ve also created a business owner education program throughout Sussex, partnering with local SME experts to help business owners continually improve their marketing knowledge.

The agency emphasizes measurable ROI from paid advertising campaigns, showing clients direct returns on their investment.

Services: Digital strategy development, paid advertising (PPC, social media ads), content creation and marketing, SEO, social media management, email marketing

Website: https://growth-by-design.co.uk/service-area/digital-marketing-agency-in-sussex/

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10. Use Brandable (West Sussex)

Use Brandable is a UK-based web design and digital marketing agency situated in the heart of West Sussex, partnering with businesses across the UK to build meaningful audience connections and grow online presence.

Location: West Sussex (serving UK-wide)
Type: Web design and digital marketing agency
Approach: Results-driven strategies, not just clicks
Specializations: Google Ads, Facebook Ads, web design, SEO

What Sets Them Apart:
Use Brandable offers a free 30-minute marketing consultation with experienced digital specialists to assess current digital efforts, identify growth opportunities, and recommend practical next steps. Their ethos centers on mutual growth: “if you grow, we grow together.”

They combine full digital agency capabilities with a personal touch from a dedicated, close-knit team, ensuring every element of online presence works hard for clients.

Client Testimonials:

• “As a family-run business, I was apprehensive to trust a digital marketing agency… however, I cannot speak highly enough of Use Brandable. They have been an incredible asset to our business.”
• “We couldn’t be happier with our new website! Luke and the team have been really helpful throughout the journey and they’ve helped us to grow our business to become the best bar in Crawley.”

Services: Google Ads management, Facebook Ads campaigns, web design and development, SEO services, social media strategies, content creation, responsive website design

Website: https://usebrandable.com/

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11. Underline Marketing (East Sussex)

Underline Marketing is a digital marketing agency in East Sussex helping businesses across the Home Counties and London with comprehensive online marketing needs. With over 20 years of real-world business marketing experience, they deliver clear and practical marketing advice in a non-pretentious style.

Location: East Sussex
Coverage: Sussex, Surrey, Kent, London
Experience: 20+ years
Specializations: Website design, SEO, PPC account management, pitch decks, e-brochure design

What Sets Them Apart:
Underline Marketing works with small to medium-sized businesses across diverse industry sectors including construction, recruitment, hospitality, investment banking, education, and automotive. They offer a totally bespoke service, getting to know clients and their businesses on a granular level to deliver personalized, high-quality service.

All new enquiries receive a free, no-obligation consultation to discuss projects and explore how Underline Marketing can support growth journeys.

Client Testimonial: “Working with young and dynamic businesses is a core compliment of my model. Alex and Mia immediately got to grips with my brand vision and helped me create a stunning website, engaging deck and successful launch via LinkedIn, for my new investment fund.”

Services: Website design and management, SEO services and local presence optimization, Google Ads design and management, pitch deck design, e-brochure creation

Website: https://www.underlinemarketing.co.uk/

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12. Pearce Marketing (East Sussex)

Pearce Marketing is an experienced marketing agency based between Eastbourne and Hailsham in East Sussex, offering flexible outsourced traditional and digital marketing support. Founded in 2008 by Emma Pearce, the agency helps SMEs with affordable, flexible marketing services.

Location: Hailsham, East Sussex (Unit 11, Swan Barn Business Centre)
Founded: 2008
Founder: Emma Pearce
Coverage: East Sussex (Eastbourne, Lewes, Hastings, Bexhill, Heathfield, Crowborough, Uckfield, Newhaven) and beyond
Specializations: Traditional and digital marketing, flexible service packages

What Sets Them Apart:
Pearce Marketing offers a unique mix of hourly rates, fixed fees, and monthly work packages without long-term contracts, making their services accessible to businesses of various sizes. They also provide training to help clients and their teams skill up in marketing.

As approved marketing consultants for schemes including South East Business Boost and Manufacturing Growth Programme, Pearce Marketing brings credibility and recognized expertise to client engagements.

Client Testimonial: “If I have to recommend a marketing expert, I’ll say Emma Pearce. I know that she is 100% reliable, professional and I have total ‘peace of mind’ that she will deliver a great job.” – Jonathan Winchester, insight6

Services: Digital marketing strategy, SEO, email marketing, social media advertising, website project management, GDPR consultancy, blogging services, marketing training, customer research, exhibition marketing, direct mail

Website: https://www.pearcemarketing.co.uk/

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Emerging Sussex Digital Marketing Agencies to Watch

Several smaller but promising Digital Marketing Agencies in Sussex are making their mark:

• Tiger Marketing (Worthing): A full-service agency specializing in strategy, campaigns, SEO, PPC, content, PR, and social media with creative campaigns that make businesses “ROAR.” Website
• Sussed Marketing (Worthing): Run by husband-and-wife team Will and Gem, this Worthing-based agency takes a digital-first approach focused on metrics that matter. Website
• Beautiful Digital (Eastbourne): An Eastbourne website design and marketing agency specializing in affordable, beautifully designed websites and marketing support. Website
• Branding Box (Crawley): A Sussex-based brand agency and digital marketing agency specializing in professional services businesses. Website

Brighton’s Digital Marketing Scene

Brighton, often referred to as “Silicon Beach” due to its thriving tech startup community, hosts several notable Digital Marketing Agencies in Sussex:

• GOAT: A B Corp certified, purpose-driven digital marketing agency focusing on clients that positively impact environmental and societal issues. Website
• Vixen Digital: A specialist digital marketing agency with proven track records in SEO and PPC campaigns. Website
• Circulate Digital: An agency offering transparent reporting through their proprietary BigDataSuite™ platform. Website

How to Choose the Right Digital Marketing Agency in Sussex

Selecting from among the many Digital Marketing Agencies in Sussex requires careful consideration of several factors:

1. Define Your Objectives

Before contacting agencies, clearly articulate your goals. Are you looking to increase website traffic, generate more leads, improve brand awareness, or boost ecommerce sales? Different agencies excel in different areas—some specialize in technical SEO like Artemis Marketing and Damteq, while others like Pratt Digital focus on paid advertising.

2. Industry Experience

Look for agencies with proven experience in your sector. For example, Tann Westlake has extensive experience with higher education institutions, while Tomango specializes in helping businesses scale from £1m-£5m turnover to £5m-£10m+. Industry-specific expertise means agencies understand your target audience, competitive landscape, and regulatory considerations.

3. Service Requirements

Determine whether you need a full-service agency or specialists in particular areas:

• Full-Service Agencies: PMW Communications, Britweb, Tann Westlake, Tomango
• SEO Specialists: Artemis Marketing, Damteq, Britweb
• PPC Specialists: Pratt Digital, Fandango Digital
• Boutique Personalized Service: Fandango Digital, Use Brandable, Pearce Marketing

4. Budget Considerations

Digital Marketing Agencies in Sussex offer various pricing structures:

• Hourly rates
• Fixed project fees
• Monthly retainers
• Performance-based pricing

Most agencies, including Pearce Marketing and Underline Marketing, offer free initial consultations to discuss your needs and provide transparent pricing estimates.

5. Transparency and Reporting

According to the story behind Artemis Marketing’s founding, lack of transparency from previous agencies was a key pain point. Look for agencies that provide:

• Regular reporting (monthly or more frequent)
• Clear metrics tied to business objectives
• Open communication about strategies and tactics
• Access to campaign data and analytics

6. Proven Track Record

Request case studies, testimonials, and ideally, client references. The agencies featured in this guide all have verified client testimonials and demonstrated results. Don’t be swayed solely by awards—while recognition is positive, results matter most.

7. Cultural Fit

Your relationship with a Digital Marketing Agency in Sussex will be ongoing. Agencies like Fandango Digital and Damteq emphasize becoming part of your team. Consider:

• Communication style and responsiveness
• Company values alignment
• Team accessibility
• Willingness to educate and involve you in the process

The Future of Digital Marketing in Sussex

Digital Marketing Agencies in Sussex are embracing emerging trends that will shape the industry:

AI-Powered Marketing

With 94% of UK digital marketers already leveraging AI capabilities, agencies like Artemis Marketing are leading the charge. Their investment in AI search optimization ensures clients appear not just in traditional search results but also in AI chatbot responses from ChatGPT, Claude, and Perplexity.

Voice Search and Conversational Marketing

As smart speakers and voice assistants become ubiquitous, Digital Marketing Agencies in Sussex are optimizing content for conversational queries and local voice searches.

Video Marketing Dominance

With 91% of businesses using video marketing in 2024 and 57% of UK video marketers using live video, Sussex agencies are investing heavily in video content strategies.

Privacy-First Marketing

As third-party cookies phase out, agencies are developing privacy-first tools and first-party data strategies to maintain effective targeting while respecting user privacy.

Mobile-First Strategies

With mobile accounting for 61.21% of internet traffic in 2024, all reputable Digital Marketing Agencies in Sussex now prioritize mobile optimization in every campaign.

Making Your Final Decision

The landscape of Digital Marketing Agencies in Sussex offers exceptional choice for businesses of all sizes. From award-winning agencies like Artemis Marketing and PMW Communications to specialized boutique firms like Pratt Digital and Fandango Digital, Sussex businesses have access to world-class digital marketing expertise.

When making your final selection, remember that the best Digital Marketing Agency in Sussex for your business is the one that:

• Understands your industry and target audience
• Aligns with your budget and growth objectives
• Provides transparent communication and reporting
• Has a proven track record with businesses similar to yours
• Feels like a genuine partner invested in your success

Sussex’s digital marketing landscape continues to evolve, driven by technological innovation, changing consumer behaviors, and the region’s entrepreneurial spirit. By partnering with the right agency, your business can capitalize on the projected growth of the UK digital marketing industry and achieve sustainable competitive advantage in an increasingly digital marketplace.

To explore more about digital marketing services and stay informed about industry trends, visit our comprehensive guides on ChatGPT SEO agency services and learn from regional case studies like our analysis of Digital Marketing Agencies in Shepherds Bush.

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Frequently Asked Questions

Q: How much do Digital Marketing Agencies in Sussex typically charge?
A: Pricing varies significantly based on services, agency size, and scope of work. Monthly retainers for SMEs typically range from £1,000 to £10,000+, with some agencies offering hourly rates, fixed project fees, or flexible packages. Most agencies provide free initial consultations to assess your needs and provide transparent pricing.

Q: What’s the difference between Brighton agencies and agencies in other parts of Sussex?
A: Brighton’s “Silicon Beach” tech hub tends to attract agencies with strong tech startup experience and cutting-edge digital expertise. However, agencies throughout Sussex—from Chichester to Eastbourne—offer equally sophisticated services, often with more personalized attention and deeper knowledge of specific local markets.

Q: Should I choose a full-service agency or specialists?
A: This depends on your needs. If you require comprehensive marketing support across multiple channels, full-service agencies like PMW Communications or Britweb offer convenience and integrated strategies. If you have specific needs (e.g., only PPC advertising), specialists like Pratt Digital may provide deeper expertise in that area.

Q: How long does it take to see results from digital marketing?
A: Timelines vary by service. PPC campaigns can generate immediate traffic, while SEO typically requires 3-6 months to see significant improvements. Most reputable Digital Marketing Agencies in Sussex provide realistic timeframes during initial consultations.

Q: Do I need a local agency, or can I work with any Sussex agency remotely?
A: With tools like Zoom and Google Meet, geography matters less than it once did. Many Sussex agencies work with clients nationwide and even internationally. However, local agencies often bring valuable insights into regional markets, local SEO expertise, and the convenience of face-to-face meetings when needed.