Table of contents
How we vet every listicle
Every agency featured on Web Tonic passes our 84-point editorial review before a single listicle goes live. This is how we vet each pick:
Verified client outcomes: We require real case studies with measurable KPIs — revenue, ROAS, CPA, retention — tied to the exact category being ranked. No cherry-picked wins, no unverifiable numbers.
Independent reputation: We cross-check Clutch, Google, G2, and Trustpilot ratings, and screen for review-bombing or suspicious patterns. Only operators with a consistent, verifiable track record make the cut.
Beyond that, every listing goes through a quarterly re-audit. We check 84 criteria across 6 pillars to make sure it still holds up — here are some of the checks we run:
An email marketing agency owns the asset you keep when the ad accounts go quiet: the list. The work is capture and list growth, segmentation, the flows behind a signup, a purchase or an abandoned basket, the campaign calendar on top of them, deliverability, and reporting that ties sends to revenue.
Ten Belfast agencies passed our evidence check, judged on what their own sites say about email, automation or lifecycle work. Nine are Belfast firms and Rane Digital Marketing Agency works the city from Banbridge. Three name clients, from Dale Farm at Digital 24 to Two Stacks Whiskey at Glaze Digital, and none of them publishes a rate we could verify on its own site.
How many Belfast email marketing agencies are actually based in Belfast?
Nine of the ten external agencies on this page publish a Belfast address; only Rane Digital Marketing Agency answers from Banbridge in County Down. Three of the ten name a client on their own site, and none publishes a rate we could verify.
1. Web Tonic
About: Web Tonic runs email inside one growth programme, so the flows, the segments and the campaign calendar are built against the same targets as the paid social and the organic work, and the revenue is reconciled in one reporting layer. Belfast briefs usually cross the border commercially, so we agree how a list is segmented between Northern Ireland, the Republic and Great Britain, and which sender and currency each segment sees, before a single flow is built. A company that only needs a template rebuild or a one-off deliverability fix will be well served by several of the specialists below.
Key Services: Growth Marketing, Paid Social, PPC, Meta Ads, SEO, Google Ads, Snapchat Ads, Amazon Ads, Reddit Ads, TikTok Ads, TikTok Shop, GEO-AEO, Webflow Design, Shopify Design, WordPress Design, UGC, Social Media Management, Pay Per Click Management, Marketing Analytics, Analytics Implementation & CDPs, Performance Branding, Performance 360° Audit, Programmatic Ads, OOH Ads, HR Marketing
Industries Served: eCommerce, SaaS, B2B, Construction Professionals, Home Services, SMEs, Health Spa & Wellness, Retail, Legal & Judicial Services, Food & Beverages, Pets, Fitness, Family & Children, Finance & Insurance, Travel, Non-Profits & Organizations, Furniture & Decoration
Notable Clients: WorldRemit, Jack & Jones, Ardene, L’Oréal, Sendwave, Nestlé, Airbnb. Serve Fortune 500 companies and smaller fast-paced startups.
Locations: HQ in San Francisco with notable offices in New York, Chicago, Miami, Toronto, Montreal, Dubai, Singapore, Sydney and more. Offices on five continents.
Pricing: Starting at USD $3,000 per month. Flexible and scalable plans at any time according to your enterprise needs. Book a call to learn more.
Great For: Mid-market to enterprise-level businesses requiring ongoing, on-tap growth and performance marketing services.
Website: Web Tonic
2. Digital 24
About: Digital 24 is an award-winning, Belfast-based digital marketing agency specializing in performance marketing, social media, and email marketing. The firm works with eCommerce and lead-based businesses across the UK, Europe, and the USA to deliver data-driven growth strategies. They are officially recognized partners of platforms like Meta, Google, and Klaviyo.
Key Services: Email Marketing, Performance Marketing, Social Media Management, Paid Advertising (Meta, Google, TikTok), SEO, Content Creation
Industries Served: eCommerce, Lead Generation
Notable Clients: Dale Farm
Locations: Belfast
Pricing: Quote-based
Great For: eCommerce advertisers, Lead Generation advertisers
Website: Digital 24
3. ProfileTree Web Design and Digital Marketing
About: ProfileTree is a digital agency based in Belfast delivering web design, digital marketing, and multimedia solutions. They help businesses grow their online presence through a blend of content strategy, technical optimization, and training services.
Key Services: Web Design, Digital Marketing, Content Creation, Video Production, SEO, Training
Industries Served: Not stated on the firm's own site
Notable Clients:
Locations: Belfast
Pricing: Quote-based
Great For: Advertisers buying web design, Advertisers buying digital marketing, Advertisers buying content creation
Website: ProfileTree Web Design and Digital Marketing
4. Loud Mouth Media Ltd
About: Loud Mouth Media is a multi-office digital marketing and performance agency headquartered in Belfast. Their core focus centres on delivering data-driven strategies spanning PPC, Paid Social, SEO, and Performance Creative to scale online growth.
Key Services: PPC, Paid Social, SEO, Performance Creative, E-Commerce Solutions
Industries Served: Gaming, Timeshare, Retail, Insurance, Telecommunications, Utilities
Notable Clients: Lyle & Scott, Autoline Insurance, YouFibre, SSE Airtricity, Milk & Blush
Locations: Belfast
Pricing: Quote-based
Great For: Gaming advertisers, Timeshare advertisers, Retail advertisers
Website: Loud Mouth Media Ltd
5. Yellow Zest Creative Agency
About: Yellow Zest Creative Agency is a creative and marketing studio located at the City East Business Centre on Newtownards Road in Belfast. The agency specializes in branding, social media management, and website support services.
Key Services: Branding, Website Management, Social Media, Marketing
Industries Served: Not stated on the firm's own site
Notable Clients:
Locations: Belfast
Pricing: Quote-based
Great For: Advertisers buying branding, Advertisers buying website management, Advertisers buying social media
Website: Yellow Zest Creative Agency
6. Glaze Digital
About: Glaze Digital is a specialized Shopify and Shopify Plus partner agency headquartered in Belfast. They provide tailored retention strategies and Klaviyo email marketing campaigns to turn one-time buyers into lifetime customers.
Key Services: Email Marketing, Shopify Design & Development, Shopify CRO & Customer Journey Improvements, Paid Media, Shopify Support Retainers
Industries Served: Retail, E-commerce, Confectionery, Construction, Food and Beverage
Notable Clients: Two Stacks Whiskey, JOBE Watersports, The Walk in Wardrobe, Gardiner Brothers
Locations: Belfast
Pricing: Quote-based
Great For: Retail advertisers, E-commerce advertisers, Confectionery advertisers
Website: Glaze Digital
7. Rapid Agency
About: Rapid Agency is a digital marketing agency located in Belfast, Northern Ireland. They provide comprehensive digital solutions including social media, SEO, PPC, and email marketing strategies designed to increase sales.
Key Services: Email Marketing, Social Media, Paid Social Media, SEO, Google Ads & PPC, Digital Marketing Strategy
Industries Served: Not stated on the firm's own site
Notable Clients:
Locations: Belfast
Pricing: Quote-based
Great For: Advertisers buying email marketing, Advertisers buying social media, Advertisers buying paid social media
Website: Rapid Agency
8. Inspiring Belfast
About: Inspiring Belfast is a digital content and marketing partner based in Belfast that helps brands connect with local audiences through strategic campaigns and media creation. They act as a community platform and creative partner, specialising in storytelling, brand visibility, and digital growth.
Key Services: Strategic Consultancy, Growth Planning, Digital Marketing, Content Creation, Brand Partnerships
Industries Served: Hospitality, Food & Drink, Local Business
Notable Clients:
Locations: Belfast
Pricing: Quote-based
Great For: Hospitality advertisers, Food & Drink advertisers, Local Business advertisers
Website: Inspiring Belfast
9. Aspect Media
About: Aspect Media is a creative and digital marketing agency headquartered in Belfast, Northern Ireland. They provide a broad range of services including website design, social media marketing, and email newsletter specialists.
Key Services: Website Design and Development, Social Media Marketing, Email Newsletters, Graphic Design, Print, Leaflet Delivery, Video Production, Photography, Text Marketing, Billboards, Branded Clothing
Industries Served: Not stated on the firm's own site
Notable Clients:
Locations: Belfast
Pricing: Quote-based
Great For: Advertisers buying website design and development, Advertisers buying social media marketing, Advertisers buying email newsletters
Website: Aspect Media
10. Codefixer
About: Codefixer is a digital marketing and SEO agency based in Belfast, Northern Ireland. They specialize in helping local businesses enhance their online visibility through search engine optimization and Google Ads management.
Key Services: SEO, Google Ads, Web Design
Industries Served: Not stated on the firm's own site
Notable Clients:
Locations: Belfast
Pricing: Quote-based
Great For: Advertisers buying seo, Advertisers buying google ads, Advertisers buying web design
Website: Codefixer
11. Rane Digital Marketing Agency
About: RANE Digital Marketing Agency is a creative digital agency located in Northern Ireland that specializes in comprehensive web design, SEO, PPC, graphic design, and branding. Their core digital capabilities extend to strategic support such as email campaigns and digital marketing solutions for businesses across the UK and worldwide.
Key Services: Web Design, SEO, PPC, Social Media, Graphic Design, Branding, Email Campaigns
Industries Served: Not stated on the firm's own site
Notable Clients:
Locations: Banbridge, Co Down, Northern Ireland
Pricing: Quote-based
Great For: Advertisers buying web design, Advertisers buying seo, Advertisers buying ppc
Website: Rane Digital Marketing Agency
Quick Comparison Table
| Agency | Key Specialty | Starting Price | Best For |
|---|---|---|---|
| 1. Web Tonic | Full-Service Performance Marketing | USD $3,000/mo | Mid-market to Enterprise |
| 2. Digital 24 | Email Marketing | Quote-based | eCommerce advertisers |
| 3. ProfileTree Web Design and Digital Marketing | Web Design | Quote-based | Small and mid-sized advertisers |
| 4. Loud Mouth Media Ltd | PPC | Quote-based | Gaming advertisers |
| 5. Yellow Zest Creative Agency | Branding | Quote-based | Small and mid-sized advertisers |
| 6. Glaze Digital | Email Marketing | Quote-based | Retail advertisers |
| 7. Rapid Agency | Email Marketing | Quote-based | Small and mid-sized advertisers |
| 8. Inspiring Belfast | Strategic Consultancy | Quote-based | Hospitality advertisers |
| 9. Aspect Media | Website Design and Development | Quote-based | Small and mid-sized advertisers |
| 10. Codefixer | SEO | Quote-based | Small and mid-sized advertisers |
| 11. Rane Digital Marketing Agency | Web Design | Quote-based | Small and mid-sized advertisers |
Frequently Asked Questions
Which Belfast agencies name the clients they email for?
Three of the ten. Loud Mouth Media credits Lyle & Scott, YouFibre, SSE Airtricity, Autoline Insurance and Milk & Blush, Glaze Digital credits Two Stacks Whiskey, JOBE Watersports, Gardiner Brothers and The Walk in Wardrobe, and Digital 24 credits Dale Farm. Ask what each engagement actually covered, because a paid search retainer or a Shopify build proves nothing about list growth, segmentation or deliverability.
We sell into the Republic as well as the UK. Does that change the setup?
It changes almost everything about the list. A contact in Dublin and a contact in Belfast need different currency, different delivery messaging and, after Brexit, different fulfilment expectations, so they cannot sit in one undifferentiated audience. Ask each firm how it splits the list by market, which consent record it keeps for each, and whether one campaign calendar serves both or each market gets its own send schedule.
What does email marketing cost in Belfast?
Litmus puts the return on email at roughly $36 for every $1 spent, which is why it survives every budget cut and why almost nobody audits it. Not one of the ten firms publishes a rate we could verify on its own site, so build your own anchor. Ask every shortlisted agency to quote three separate lines against one identical brief: an audit of the account you already have, the build work to fix flows and templates, and the ongoing campaign calendar. Most proposals blur all three into a single monthly figure.
Most of these firms sell search or web work first. Does that matter?
Only if nobody owns deliverability. Mailchimp's own benchmarks put the average campaign at a 35.63% open rate and a 2.62% click rate, so a proposal built on opens alone is measuring the easiest number to move. Several agencies on this short bench treat email as the newsletter attached to a wider retainer, which is fine provided a named person handles authentication, list hygiene and sending reputation rather than a package. Ask who that person is, whether SPF, DKIM and DMARC are in scope, and who holds the login to your sending platform.
Which flows should a Northern Irish business build first?
Start with the three that run without a calendar: a welcome sequence for a new subscriber, a post-purchase or post-enquiry sequence, and an abandonment sequence for whichever step people actually drop at. Ask each firm to describe those three in your own trading language, ask what triggers each one, and ask how a contact who qualifies for two at once is stopped from receiving both on the same morning.
Choosing an Email Marketing Agency in Belfast
This is a ten-firm bench, not a long list. Belfast has fewer email specialists than any comparable UK city we have checked, so expect to shortlist agencies whose main trade is paid media, search or Shopify work and who run email alongside it.
Nine of the ten publish a Belfast address. Rane Digital Marketing Agency answers from Banbridge, which we have said here rather than quietly listing it as local, and which changes who attends a review rather than whether the work can be done.
Three firms name clients. Lyle & Scott and SSE Airtricity at Loud Mouth Media and Two Stacks Whiskey at Glaze Digital are references you can approach directly, so ask whether those engagements involved email at all.
Nobody publishes a verifiable rate. Price the audit, the build and the calendar as three lines against one brief, and keep the sending platform seat and the domain records in your own name. If you would rather have the list, the paid social and the growth programme reporting to one number, read our latest analysis or see how we work in Belfast.
