Automation for UK B2B SaaS companies
RevOps that lets your CS, sales and finance teams work from one customer record. From trial to paid to expansion to churn — every event firing the right next step, automatically.
You have three CRMs and none of them is the source of truth.
For a UK B2B SaaS company between £2m and £30m ARR, the operational mess looks like this: marketing runs HubSpot, sales has crept into Salesforce, customer success uses Vitally or a spreadsheet, finance reconciles Stripe to Xero by hand, product analytics lives in Mixpanel and nobody knows whether a customer is healthy until they churn. Every team thinks it owns the customer record. None of them does.
- Lead-to-cash gaps — A deal closes in CRM but the customer doesn't appear in Stripe for 2 days. CS doesn't see them until onboarding is half over.
- Billing reconciliation by hand — Stripe charges, Xero invoices and MRR reports never quite agree. Finance spends days a month untangling them.
- Churn signals after the fact — You see a customer churning the month their renewal is due — never with the four months of feature-usage decline that preceded it.
One customer record. Many systems.
We don't migrate you off HubSpot or Salesforce. We define which system is the source of truth for each customer attribute (CRM owns firmographics, billing owns commercial, product owns usage) and make every other system a synchronised mirror. Then every workflow knows where to look — and nothing gets written to two places by hand.
- Source-of-truth architecture — Single customer ID across CRM, billing, product, CS and finance. We pick the canonical source per attribute, never both.
- Engineering-friendly — Built so your engineers can read, extend and replace the integrations. No black-box no-code that gets stuck when you grow.
- Your RevOps lead owns it — Pair-built with the person who'll run it. If you don't have a RevOps lead yet, we make sure the documentation is good enough to hire one against.
The six RevOps automations we ship most often for UK B2B SaaS
Different SaaS companies have different bottlenecks but these patterns recur. Most engagements ship 3–5 of these in the first build.
A four-phase engagement, priced flat
No hourly billing. No platform commissions. We pair with your team so the system isn't owned by us afterwards.
We map your customer record across CRM, billing, product, CS and finance. Output: source-of-truth diagram and a prioritised ROI list.
We pick 3–5 builds in priority order with ARR-impact, hours-saved and risk-reduction estimates.
Built in your existing stack with your engineers / RevOps lead alongside. Documented end to end.
Documentation, training, monitoring set-up, and a 90-day check-in on the predicted impact.
What automation for B2B SaaS actually means
The phrase "SaaS automation" usually means automating the workflows your customers run inside your product. That's product engineering, and your engineers own it. What we do is the layer one level out: the internal operations that move a prospect through trial, into paid, through onboarding, into expansion, and (sometimes) into churn. The RevOps layer.
For a UK B2B SaaS company between £2m and £30m ARR, this layer is almost always under-built. You probably hired a RevOps person in the last 12 months — or you're about to — and they're spending most of their first six months fighting fires rather than building a system. The pattern repeats whether you're sales-led, product-led or hybrid: the customer record is split across 5 platforms, nobody owns the canonical source per attribute, and every team writes to every system by hand.
We define the source-of-truth architecture, wire the systems to it and instrument the lifecycle events so RevOps can stop firefighting and start managing the funnel.
The UK B2B SaaS stack we typically work with
- CRM: HubSpot (modal answer for UK SaaS under £20m ARR), Salesforce (modal answer above), Pipedrive, Close.
- Billing & subscription: Stripe Billing (most common), Chargebee, Recurly, Maxio (formerly Chargify), Paddle for the developer-tools and B2C-adjacent stack.
- Subscription analytics: ChartMogul, ProfitWell, Baremetrics, Maxio.
- Customer success: Vitally, Catalyst, Planhat, ChurnZero, Gainsight at the upper end.
- Product analytics: Mixpanel, Amplitude, Heap, PostHog, Segment as the event pipeline.
- Sales engagement: Outreach, SalesLoft, Apollo, native HubSpot Sequences.
- Finance: Xero (most UK SaaS under £10m ARR), NetSuite, Microsoft Dynamics F&O at larger.
- Support: Intercom (most common for SaaS), Zendesk, Help Scout, Front.
- Internal data layer: Segment as the event bus, Snowflake or BigQuery as the warehouse, dbt for modelling, Hightouch or Census for reverse ETL.
We don't take partner commissions. Most engagements deepen what you have rather than swap it.
Why UK B2B SaaS companies underinvest in RevOps automation
Three common patterns:
- "We'll fix it after the next hire." Every quarter there's a planned RevOps or CS Ops or Sales Ops hire that's going to clean up the mess. The hire takes longer than expected, ramps slower than expected and spends their first six months firefighting. The system never gets built because the system was supposed to be built by them.
- Engineering can't prioritise it. Engineering's roadmap is the product. The internal data pipeline that RevOps needs is always the next-quarter item that doesn't ship. A fractional CAO unblocks this by building the integration layer outside the engineering org with a clean handover path to engineers when they have time.
- The lifecycle is invented by accident. Marketing automation lives in HubSpot. Onboarding automation lives in Vitally. Expansion playbooks live in a Notion doc. Each was built by a different person at a different stage and they don't compose into a single lifecycle. Reconstructing one source of truth is the foundational unlock.
What a Watermelon engagement looks like for a B2B SaaS company
A scoped engagement is typically 6–8 weeks at a fixed price of £10k–£30k. A 40-person Series A/B SaaS with HubSpot, Stripe, Xero, Mixpanel and Vitally usually lands at £14k–£20k. A larger Series B/C SaaS with Salesforce, NetSuite, multi-product billing and Gainsight lands higher.
After the build, SaaS companies that want continuing RevOps leadership take a fractional Chief Automation Officer retainer at £5k–£15k per month, usually 2–3 days a month covering continuous improvement, new playbook automation, quarterly health-score recalibration and reporting.
We work most often at 20–200 staff and £2m–£30m ARR. Below that you're usually fine running HubSpot and a spreadsheet. Above £30m ARR you've usually got a real RevOps team and the engagement is more partnership than build-and-handover.
How this fits with the wider Watermelon model
- Automation Consulting — the broader practice this page sits within.
- AI Automation Agency — for AI-led SaaS workflows like LLM-based customer support routing, product feedback summarisation, automated win/loss analysis and churn-call summarisation.
- Industries: Ecommerce & DTC — relevant for ecommerce-platform SaaS or DTC-tooling vendors that sell into the same buyer.
- Industries: Professional Services — for SaaS companies built on top of professional services delivery (so-called "services-as-software").
Ready to find the gap in your customer record?
The free 30-minute call is the right next step. Bring one segment of the lifecycle that's leaking — onboarding, expansion, renewal, billing. We'll tell you where the data should live and what we'd automate first.
Find the gap in your customer record
30 minutes. No deck. Tell us about one segment of the lifecycle that's leaking. We'll tell you where the data should live and what we'd automate first.