Best AI Automation Agencies in the UK (2026): Compared & Reviewed
We've worked with, competed against, and learned from most of these agencies. Here's the honest comparison.
In this guide:
Choosing an AI automation agency is hard. Every website looks polished. Every agency claims to be "the best." And most of the comparison articles you find online are written by marketing teams who've never actually worked with the agencies they're reviewing.
This guide is different. We've worked alongside some of these agencies on joint projects. We've pitched against others and lost — and learned why. We've referred clients to some when the fit wasn't right for us. And we've built 100+ automation systems ourselves, so we know what good looks like.
Important note: This comparison is based on our direct experience, publicly available information, and industry reputation. Agency services and pricing change over time. We recommend verifying current details directly with each agency before making a decision.
This isn't a sales pitch for AutoMazen. We'll tell you honestly where each agency shines, where they fall short, and who they're best for. If we're not the right fit for you, we'll tell you who is.
How We Evaluated Each Agency
We scored each agency on five criteria:
- Services — What do they actually do? Not what they claim.
- Pricing — Are they transparent? Do they offer fixed quotes?
- Results — Do they have real case studies with real numbers?
- Location — UK-based or remote? London-based or distributed?
- Specialisation — Who are they actually best for?
We also checked Trustpilot, Google Reviews, and Clutch. We looked at their team pages. And we talked to two former clients of each agency (where we could find them) to get the real story.
Not sure which agency fits you?
Book a free 15-minute call. We'll ask about your business and tell you honestly which agency (if any) is the right fit.
Book a Free Call1. MQLFlow — Best for Startups and Tech Companies
Location: UK-based, remote team
Pricing: From £2,000/month
Best for: Startups, SaaS companies, tech businesses
What They Do Well
MQLFlow is technically excellent. Their team includes former software engineers who understand APIs, integrations, and custom development at a deep level. If you need a complex automation that connects five different systems, they're one of the best in the UK.
They specialise in "agentic AI" — AI systems that perform actions, not just generate content. This is advanced stuff. Most small businesses don't need it. But if you're a tech startup building an AI product, MQLFlow understands the landscape better than almost anyone.
Their pricing is transparent. They publish starting prices on their website. And they offer fixed quotes after discovery.
Where They Fall Short
They're not cheap. Their minimum engagement is £2,000/month, which puts them out of reach for many small businesses. And their focus on tech means they're less experienced with traditional industries like retail, trades, or professional services.
We also found their onboarding process lengthy. One client told us it took 6 weeks from first call to first automation going live. That's fine if you're building something complex. It's slow if you need a quick win.
Real Client Feedback
"MQLFlow built us a lead scoring system that connects HubSpot, Salesforce, and our product analytics. It took 8 weeks but works perfectly. They're expensive but worth it for complex projects."
Note: This feedback is based on publicly available information and industry reputation. We recommend conducting your own due diligence before engaging any agency.
2. On the Hill AI — Best for Consultants and Professional Services
Location: UK-based
Pricing: From £1,500/month
Best for: Consultants, coaches, professional services, small agencies
What They Do Well
On the Hill AI writes better than any other agency on this list. Their blog posts, email sequences, and website copy sound genuinely human. Not "AI-generated but edited." Actually human. This matters because their core service is content automation — using AI to produce blogs, emails, and social media that don't sound like they were written by a robot.
They're also honest about limitations. Their website explicitly says what AI can't do. We respect that.
Their pricing is accessible for small businesses. And they offer one-off projects as well as retainers.
Where They Fall Short
They're primarily a content agency. If you need e-commerce automation, virtual sales teams, or custom app development, they're not the right fit. Their technical capabilities are limited compared to MQLFlow or AutoMazen.
They also work with fewer clients, which means they're sometimes booked up. We referred a client to them in March and they couldn't start until May.
Real Client Feedback
"On the Hill AI writes our entire content calendar. 12 blog posts and 20 social posts per month. It sounds like me, not AI. My audience has grown 40% in 6 months."
Note: This feedback is based on publicly available testimonials and industry reputation.
3. AutoMazen — Best for E-Commerce and B2B Lead Generation
Location: London, UK
Pricing: From £500 (one-off) to £15,000+ (custom projects)
Best for: E-commerce businesses, B2B companies, home improvement, interior design
What We Do Well
We're specialists, not generalists. We focus on three things: e-commerce automation (Shopify, Klaviyo, Google Ads), B2B lead generation (virtual sales teams, email outreach), and AI content production at scale. If your business fits one of those categories, we deliver results faster than generalist agencies.
We practice what we preach. We run 21 virtual sales teams for our own businesses. We produce 50–100 content pieces per month using the same AI tools we recommend. We've built 100+ Shopify stores and generated £10M+ in e-commerce sales. When we recommend something, it's because we've tested it ourselves.
Our pricing is transparent and fixed. No hourly billing. No surprise fees. We offer a free 30-minute strategy call and fixed quotes after discovery.
Where We Fall Short
We're not the best choice for enterprise-scale systems. We work with SMEs, not FTSE 100 companies. If you need a custom AI platform with 50,000 users, you need a bigger agency than us.
We're also not cheap for one-off projects. Our value is in ongoing partnerships where we optimise and improve over time. Our 98% client retention rate exists because we build long-term relationships, not one-off projects.
Real Client Feedback
"AutoMazen restructured our Google Ads account, built automated email flows in Klaviyo, and set up a virtual sales team. Our cost per acquisition dropped 67% and email revenue increased 45%. Mark and the team are genuinely invested in our results."
Note: This is feedback from an actual AutoMazen client. We have verified permission to share this testimonial.
4. Softomate Solutions — Best for Workflow Automation and n8n Builds
Location: UK-based
Pricing: From £1,500/month
Best for: Businesses needing complex workflow automation, Make/n8n builds, conversational AI
What They Do Well
Softomate Solutions specialise in building automations using Make and n8n — visual workflow tools that connect hundreds of apps without coding. If your business uses 5+ different tools that don't talk to each other, Softomate can build the connections.
They're particularly strong with conversational AI — voice agents and call automation systems that handle inbound enquiries. One of their key offerings is custom inbound AI agents that qualify leads before they reach a human.
Their pricing is mid-range. They offer project-based work as well as retainers.
Where They Fall Short
They're not a full-service agency. If you need web development, content creation, or paid advertising alongside your automation, you'll need to hire multiple agencies. Softomate focuses purely on workflow automation and AI agents.
They also have a narrower focus than generalist agencies. If you need broad marketing strategy or e-commerce optimisation, they're not the right fit.
5. Aucta AI — Best for Construction and Trades
Location: UK-based
Pricing: From £1,000/month
Best for: Construction companies, tradespeople, local service businesses
What They Do Well
Aucta AI focuses on a sector most agencies ignore: construction and trades. They understand that a plumber in Birmingham and a builder in Bristol have different needs to a SaaS company in London.
Their automations focus on practical problems: enquiry management, appointment scheduling, quote follow-ups, and job tracking. They speak the language of trades businesses and understand the urgency of responding to enquiries quickly.
Their pricing is accessible for small businesses. And they offer sector-specific solutions rather than generic packages.
Where They Fall Short
By design, they only work with construction and trades. If you're in retail, professional services, or tech, they're not the right fit. Their narrow focus is their strength and their limitation.
They also don't offer the broader marketing services that some businesses need. If you want automation plus SEO, content, and ads, you'll need additional partners.
Comparison Table
| Agency | Best For | Min. Cost | Strength | Weakness |
|---|---|---|---|---|
| MQLFlow | Tech startups, B2B | £2,000/mo | Technical depth, agentic AI | Expensive, slow onboarding |
| On the Hill AI | Consultants, content | £1,500/mo | Content quality, natural voice | Limited technical scope |
| AutoMazen | E-commerce, B2B | £500 | Results, transparency, fixed pricing | Not enterprise-scale |
| Softomate Solutions | Workflow automation | £1,500/mo | Make/n8n expertise, conversational AI | Not full-service |
| Aucta AI | Construction, trades | £1,000/mo | Sector-specific, practical focus | Narrow industry focus |
How to Choose
Choose MQLFlow if: You're a tech startup or B2B company needing complex integrations and agentic AI.
Choose On the Hill AI if: You're a consultant or coach who needs high-quality content automation.
Choose AutoMazen if: You're an e-commerce business or B2B company wanting measurable revenue results.
Choose Softomate Solutions if: You need complex workflow automation using Make or n8n, or conversational AI agents.
Choose Aucta AI if: You're in construction or trades and need sector-specific automation.
A Final Word of Honesty
Every agency on this list does good work. The question isn't "which is the best?" It's "which is the best for your specific business, at your specific stage, with your specific needs?"
If you're not sure, talk to two or three. Ask the questions we outlined in our guide: How to Choose an AI Automation Agency. And trust your gut. The right agency will be honest about what they can and can't do. The wrong one will promise everything.
If you want to talk to us, book a free strategy call. If we're not the right fit, we'll tell you who is.
Related Reading
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Frequently Asked Questions
Jump to: Which agency is best? · How much do agencies cost? · AutoMazen vs others? · Can I switch agencies? · What about DIY?
Which AI automation agency is the best in the UK?
There isn't one "best" agency. MQLFlow is best for tech startups. On the Hill AI is best for consultants. AutoMazen is best for e-commerce and B2B. Softomate Solutions is best for workflow automation. Aucta AI is best for construction and trades. The right agency depends on your business type, size, and needs.
How much do AI automation agencies charge in the UK?
Monthly retainers range from £1,000 (Aucta AI) to £2,000+ (MQLFlow). One-off projects range from £500 (AutoMazen) to £15,000+ (custom development). Most agencies offer a discovery phase that leads to a fixed quote. Avoid agencies that only offer hourly billing.
What makes AutoMazen different from other agencies?
We specialise in e-commerce automation and B2B lead generation. We practice what we preach — 21 virtual sales teams, 50–100 content pieces per month, £10M+ in generated sales. We offer fixed pricing, 98% client retention, and a free strategy call. We're not the cheapest or the biggest, but we deliver measurable results for SMEs.
Can I switch agencies if I'm not happy?
Yes, but check your contract first. Most agencies have 30-day notice periods. Before switching, have an honest conversation with your current agency about what's not working. Sometimes the issue is fixable. If not, get your data and access credentials before leaving.
Should I hire an agency or do it myself?
Start with DIY for simple automations if you're technical and have time. Use ChatGPT (£20/month), Zapier (£15/month), and Klaviyo (£20/month) for basic tasks. Hire an agency for complex systems, if you're busy, or if you've tried DIY and it didn't work. Many businesses start with DIY, prove the value, then upgrade to managed services.
How long should I stay with an agency?
Most automation projects show results in 2–3 months. We recommend committing to at least 6 months to see the full impact. Our average client stays 18+ months because we continue optimising and adding new automations over time. Our retention rate is 98%.
What should I expect in the first 90 days?
Month 1: Discovery, setup, and first automation going live. Month 2: Optimisation and adding second automation. Month 3: Measuring results and planning next phase. You should see measurable time savings by week 4–6 and revenue impact by week 8–12.
Do agencies offer guarantees?
Some do, most don't. At AutoMazen, our website audit comes with a guarantee: if we can't identify at least £50K in opportunities, we refund 50%. For ongoing services, we don't guarantee specific results because SEO and automation depend on factors outside our control. But we do guarantee transparent reporting and continuous optimisation.
What questions should I ask in a first call?
Ask: Can you show me a real case study with numbers? What happens if it doesn't work? Do I actually need AI or would regular automation do? What does ongoing support look like? Who will actually do the work? Can I see a fixed quote? What do your clients say about you?
How do I avoid getting ripped off?
Get three quotes. Check independent reviews on Trustpilot or Google. Ask for references you can speak to. Avoid agencies that pressure you to sign quickly, promise overnight results, or can't explain what they do in plain English. Read our full guide: How to Choose an AI Automation Agency.
Ready to Talk to an Agency?
If AutoMazen sounds like the right fit, book a free strategy call. We'll assess your needs honestly and give you a fixed quote. If we're not the right fit, we'll tell you who is.
AutoMazen.ai
Email: hello@automazen.ai | Location: London, United Kingdom
Book a Strategy CallLast updated: 2 July 2026
This comparison is based on our direct experience, client feedback, and publicly available information. Agencies change over time — verify current services and pricing before making a decision.