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Our story
Built for UK founders,
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StackList started in 2024 in London with one simple idea — UK businesses deserved a SaaS directory that actually understood them.

Why we built StackList

The existing SaaS directories — G2, Capterra, GetApp — are built for American audiences. They don't account for GDPR compliance, MTD-ready accounting tools, UK-specific payroll requirements, or the reality that most UK founders need tools that price in pounds, integrate with Companies House, and keep data in European data centres.

StackList was created to fix that. We're an independent, editorially curated directory of the best SaaS tools for UK businesses — verified, categorised, and updated every week.

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No pay-to-rank. Sponsored listings are clearly marked. Our editorial ordering is based on quality, relevance, and user ratings — not how much a company pays us.

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We're a small team of developers, product designers, and SaaS operators based in London. We use the tools we list, and we're passionate about helping UK founders build better businesses.

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What qualifies for listing

To be listed on StackList, your tool must be a live, commercially available SaaS product. We accept tools that serve UK businesses, regardless of where the company is based. The tool must have a working website, a clear pricing page, and a privacy policy.

Editorial review criteria

✓ Product quality — Does the product solve a real problem well? We check for a professional UI, working features, and a reasonable onboarding experience.

✓ GDPR compliance — Does the tool have a privacy policy and Data Processing Agreement? UK/EU data residency earns our GDPR badge.

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We do not list: crypto/NFT projects, adult content, gambling tools, MLM software, spam facilitation tools, or anything that violates UK law.

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Blog
Guides, comparisons
and UK SaaS insights

In-depth articles, tool comparisons, and practical guides for UK founders building and scaling their businesses.

Guide

The best CRM tools for UK startups in 2026 (GDPR-ready)

We compared 12 CRM tools on price, GDPR compliance, UK integrations, and ease of use. Here is what we found.

Choosing the right CRM is one of the most important decisions a UK startup will make. Get it wrong and your sales team wastes hours on admin. Get it right and your pipeline runs itself. We spent three weeks testing 12 CRM platforms specifically for UK startups — scoring each on price, GDPR compliance, ease of setup, UK-specific integrations, and real-world usability.

What we looked for

Our criteria were deliberately UK-focused. Beyond the usual features, we checked: Does it store data in the EU or UK? Does it offer a Data Processing Agreement? Does it integrate with tools UK businesses actually use — like Xero, FreeAgent, and GoCardless? And critically, can a small team get value from it without a dedicated CRM admin?

Our top picks
HubSpot CRM9.4 / 10 — Best overall
Pipedrive9.1 / 10 — Best for sales teams
Close CRM8.8 / 10 — Best for inside sales
Zoho CRM8.5 / 10 — Best value
Freshsales8.2 / 10 — Best free plan
HubSpot — the clear winner for most UK startups

HubSpot wins on almost every dimension. The free tier is genuinely useful — unlimited contacts, email tracking, deal pipelines, and live chat. The paid tiers start at £41/month and include automation, sequences, and deeper reporting. GDPR compliance is built in with cookie consent tools and data deletion workflows. EU data storage is available on paid plans.

The one downside: HubSpot can become expensive quickly as you scale. If your team grows beyond 10 users, costs can jump significantly. But for early-stage startups, the free plan alone outperforms many paid competitors.

Pipedrive — built for salespeople, not admins

Pipedrive is loved by sales-led startups who want a clean, visual pipeline without complexity. Setup takes under an hour. The interface is genuinely intuitive — you drag deals between stages, set follow-up reminders, and track email opens. GDPR tools include data portability exports and consent tracking. Starts at $14/month per user.

GDPR verdict
GDPR winners: HubSpot, Pipedrive, and Zoho CRM all offer full DPA agreements, EU data residency options, and built-in consent management. Avoid US-only CRMs that cannot guarantee EU data storage if you handle EU customer data.
Bottom line

For most UK startups: start with HubSpot free, upgrade to Starter when you hit 1,000 contacts or need automation. If your team is sales-led and pipeline-focused, go with Pipedrive from day one.

June 2026·8 min read·By StackList Editorial
Comparison

Xero vs FreeAgent vs QuickBooks: Which is best for UK freelancers?

A detailed side-by-side of the three most popular accounting tools for UK sole traders and freelancers.

If you are a UK freelancer or sole trader, accounting software is not optional — it is essential. With Making Tax Digital (MTD) now mandatory for VAT-registered businesses and expanding to income tax from 2026, choosing the right tool now saves serious headaches later. We tested all three over 60 days with real invoices, expenses, and VAT returns.

Quick comparison
Xero Starter£14/mo — MTD-ready, best features
FreeAgent£19/mo — Best for UK freelancers
QuickBooks Simple Start$18/mo — Most beginner-friendly
FreeAgent — our winner for UK freelancers

FreeAgent was built specifically for UK freelancers, contractors, and small businesses. It handles Self Assessment, VAT returns, and MTD in a way that feels designed for non-accountants. The dashboard shows exactly how much tax you owe in real time — a feature that alone justifies the subscription. It also integrates directly with NatWest, RBS, and Ulster Bank (free if you bank with them).

The interface is clean and the support team is UK-based. Filing a VAT return takes under five minutes once your bank feed is connected. Self Assessment submission is built in — no exporting to HMRC separately.

Xero — best if you plan to grow

Xero is more powerful than FreeAgent and scales better as your business grows. The app ecosystem is larger (700+ integrations), and the reporting tools are considerably deeper. The Starter plan limits you to 20 invoices per month — fine for most freelancers, but check your volume. MTD compliance is fully built in. Xero also has a larger accountant community in the UK, so finding a Xero-certified accountant is easy.

QuickBooks — easiest to start

QuickBooks has the most intuitive onboarding of the three. If you have never used accounting software before, QuickBooks gets you invoicing on day one. MTD support is solid. The Self Assessment feature is less refined than FreeAgent, but the expense tracking and receipt scanning (via mobile app) are excellent.

Our recommendation
Freelancer verdict: Choose FreeAgent if Self Assessment and tax visibility are your priority. Choose Xero if you plan to hire staff or work with an accountant. Choose QuickBooks if you want the simplest possible setup and do not need advanced UK tax features yet.
May 2026·6 min read·By StackList Editorial
Founder story

How this London startup cut their SaaS spend by 40% in 3 months

We spoke with the ops lead at a 25-person London fintech about their software audit and what they switched to.

When Maya Chen joined Payvault — a 25-person B2B payments fintech based in Shoreditch — as Head of Operations, she inherited a SaaS stack that had grown organically over three years. Nobody had ever audited it. Six weeks later she had cut £3,800 per month in software costs without losing a single critical capability.

The audit

"The first thing I did was export every direct debit and card charge in the company account and tag it," Maya told us. "We had 47 active SaaS subscriptions. Eleven of them nobody could tell me who was using or why."

The immediate wins were obvious: two project management tools running in parallel (Asana and Monday), three different video tools (Zoom, Google Meet, and a Loom competitor nobody remembered signing up for), and a £400/month analytics platform that had been replaced by PostHog six months earlier but never cancelled.

The switches that saved the most
  • Salesforce → Pipedrive — saved £1,200/month. The sales team of four did not need enterprise CRM. Pipedrive had everything they actually used.
  • Tableau → Metabase (open source) — saved £800/month. Their data analyst preferred Metabase anyway.
  • Intercom → Crisp — saved £600/month. Support volume did not justify Intercom pricing at their stage.
  • Adobe Creative Cloud (5 seats) → Figma + Canva — saved £400/month. Only one person used Illustrator.
What they kept and why

"We kept GitHub, Slack, Xero, and Stripe without question," Maya said. "Some tools are so embedded in how you work that switching costs outweigh any savings. We also kept Linear — the engineering team would have revolted if we touched it."

The process she recommends
  1. Export all payment transactions, tag every SaaS subscription
  2. For each tool, ask: who owns it, who uses it daily, what breaks if we cancel it
  3. Any tool with no clear owner gets cancelled immediately
  4. Any tool with an owner but low daily usage gets a 30-day trial cancellation
  5. Review duplicates — you almost certainly have two tools doing the same job
Result: £3,800/month saved. Total audit time: 3 weeks. Maya now runs a quarterly SaaS review as a standing agenda item. "It is the highest ROI three hours I spend each quarter."
May 2026·5 min read·By StackList Editorial
Guide

GDPR compliance for SaaS tools: What UK businesses actually need to check

A plain-English guide to evaluating SaaS tools for GDPR compliance — what to look for, what to ask vendors.

Post-Brexit, UK businesses operate under UK GDPR — which mirrors EU GDPR but is enforced by the ICO rather than EU data protection authorities. In practice, the requirements are nearly identical, and any tool that is EU GDPR compliant will satisfy UK GDPR. Here is exactly what to check before signing up to any SaaS tool that handles personal data.

1. Where is data stored?

This is the first question to ask any vendor. Data stored outside the UK or EU requires additional safeguards under UK GDPR. EU or UK data residency is strongly preferred. Most reputable vendors now offer EU region options — look for servers in Ireland, Germany, Netherlands, or the UK (London). If a vendor only offers US storage with no EU option, treat it as a red flag.

2. Does the vendor offer a Data Processing Agreement (DPA)?

If a SaaS tool processes personal data on your behalf, you are legally required to have a DPA in place. Most reputable vendors (HubSpot, Mailchimp, Intercom, etc.) offer a standard DPA you can accept online. If a vendor cannot provide a DPA, do not use them for personal data processing.

3. What is their sub-processor list?

Under GDPR, you are responsible for your vendors' sub-processors too. Reputable vendors publish a list of sub-processors (e.g., AWS, Google Cloud, Stripe) and notify you of changes. Check that sub-processors are also EU/UK-based or have appropriate safeguards.

4. How do they handle data subject requests?

Your users have the right to access, correct, and delete their data. Your SaaS tools must support this. Check: Can you export all data for a specific user? Can you delete a user's data completely? Does deletion actually delete, or just anonymise?

5. Cookie and consent management

Analytics tools are a common GDPR risk. Tools like Google Analytics set cookies that require consent under UK PECR. Privacy-friendly alternatives like Plausible and Fathom Analytics are cookieless and require no consent banner — a significant compliance simplification.

Quick checklist
  • EU or UK data residency available
  • DPA available and signed
  • Sub-processor list published
  • Data export and deletion tools available
  • Privacy policy is current and detailed
  • ISO 27001 or SOC 2 certification (good signal)
Key takeaway: GDPR compliance is not a one-time checkbox — it is ongoing. Run a vendor review every 6 months and check for DPA updates when vendors announce sub-processor changes.
April 2026·10 min read·By StackList Editorial
Comparison

Notion vs ClickUp vs Asana: The definitive UK team guide for 2026

Which productivity tool fits your team? We break down pricing, features, and real-world use cases for UK teams.

Three tools dominate the productivity conversation for UK teams in 2026: Notion, ClickUp, and Asana. They overlap significantly but serve genuinely different team types. After running each with real teams over 90 days, here is our honest breakdown.

Who each tool is really for
NotionKnowledge-first teams, docs + databases
ClickUpPower users who want everything in one place
AsanaProject-focused teams with clear workflows
Notion — the wiki that learned project management

Notion started as a document and knowledge tool and grafted project management on top. This heritage shows: it is exceptional for team wikis, meeting notes, product specs, and interconnected databases. The new Notion Projects feature is genuinely good for lightweight project tracking. Where it struggles: complex multi-team projects with dependencies, resource planning, and timeline management.

Pricing: free for personal use, £7/user/month for Team. GDPR compliant with EU data residency on Business plan.

ClickUp — the everything app (for better and worse)

ClickUp has more features than any competitor. Docs, tasks, goals, whiteboards, time tracking, sprints, CRM, chat — it is all there. The risk: feature overload. Teams that thrive on ClickUp are usually those with a dedicated ClickUp admin who has set it up thoughtfully. Out of the box it can feel overwhelming. Once configured well, it genuinely replaces 3-4 other tools.

Pricing: generous free plan, £5/user/month Unlimited. Good value if your team uses it fully.

Asana — the reliable workhorse

Asana is the most focused of the three. It does project and task management extremely well and does not try to do everything else. The timeline view, workload management, and portfolio features are best-in-class. It integrates with everything. For teams running structured projects — marketing campaigns, product launches, client work — Asana is the most dependable choice.

Pricing: free for up to 10 users, £9.49/user/month Premium. GDPR compliant, EU data residency available.

Our recommendation by team type
  • Early-stage startup: Notion — low cost, flexible, great for a small team doing everything
  • Engineering team: Linear (not on this list, but worth mentioning) or ClickUp
  • Marketing or agency: Asana — structured campaigns and client projects
  • Operations-heavy team: ClickUp — the feature depth pays off
Bottom line: There is no universal winner. Pick Notion if you value docs and flexibility. Pick Asana if you want structure and reliability. Pick ClickUp if you want power and are willing to invest in setup.
April 2026·7 min read·By StackList Editorial
AI tools

The 10 AI tools UK founders are actually using in 2026

Beyond ChatGPT — the AI stack real UK founders rely on for sales, marketing, operations, and development.

We surveyed 140 UK founders and operators in April 2026 about their actual AI tool usage — not what they had tried once, but what was embedded in their daily workflow. The results were more nuanced than the usual ChatGPT-dominated conversation suggests.

The core stack (used by 60%+ of respondents)
  • ChatGPT / Claude — Used interchangeably for writing, research, and coding by almost everyone. Claude ranked higher for long documents and nuanced writing. ChatGPT preferred for coding and quick tasks.
  • Grammarly — Still the most embedded AI tool for written communication. Works across email, Slack, Docs, and browser. "I forget it is even AI," one founder told us.
  • Notion AI — Summarising meeting notes, drafting first versions of specs, and filling in templates. Teams already on Notion find the AI integration frictionless.
The specialist tools gaining fast
  • ElevenLabs — UK founders producing video content or podcasts are using ElevenLabs for voiceovers and audio cloning. "We cut our video production time in half," said one marketing lead.
  • Descript — Video editing by editing text transcript. Popular with founders doing YouTube content or investor updates.
  • Make (formerly Integromat) — AI-powered automation workflows. More powerful than Zapier for complex multi-step automations. Growing fast with the technical founder segment.
  • Jasper AI — Marketing teams producing high volumes of ad copy, landing page variants, and social content at scale.
The developer AI stack
  • GitHub Copilot — Used by the majority of technical founders. "It is like pair programming with someone who has read every Stack Overflow answer," one CTO said.
  • Cursor — The AI code editor gaining rapidly on VS Code among startup engineers. Not on StackList yet but worth watching.
  • Supabase + AI integrations — Using Supabase as a backend with AI features (vector search, edge functions calling OpenAI) is the most common AI-native architecture pattern among UK SaaS founders.
What founders are NOT using

Despite significant hype, only 12% of respondents had integrated AI into their customer support workflows in a meaningful way. "The hallucination risk is still too high for customer-facing AI without significant guardrails," one founder explained. Expect this to change significantly by end of 2026 as reliability improves.

Key insight: The winning AI stack is not one tool — it is three to five deeply integrated tools replacing specific manual tasks. The founders getting the most value have identified their highest-value repetitive tasks and automated exactly those, rather than experimenting broadly.
March 2026·9 min read·By StackList Editorial

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Last updated: 1 June 2026. StackList Ltd.

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