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Bespoke CRM systems
Custom CRM software for pipeline, leads, contacts, accounts, activity and quotes, with a data model and field mapping built around your sales process, plus role-based access and audit logging.
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Bespoke CRM development company
Bespoke CRM software development built around your process
Your team keeps client details in spreadsheets because the CRM does not fit how you actually work, and nothing agrees with your accounts. We build bespoke CRM software around your sales and client process, connected to the tools you already use, with no per-seat licence fees.
Thanks, that’s with us.
A senior engineer reads every enquiry and will reply as soon as they can.
Want to take it further now?
Book a time that suits you, or send a message on WhatsApp.
- No per-seat fees: one build cost, however many users you add
- Two-way sync with Xero, QuickBooks, Sage, Shopify and Stripe
- On full payment, code, schema and documentation are yours
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Clients since 2020
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Technologies we build with
- React
- Next.js
- Python
- Django
- FastAPI
- Celery
- PostgreSQL
- MySQL
- Redis
- Xero API
- QuickBooks API
- Sage API
- Stripe
- Shopify
- Mailchimp API
- Microsoft Graph (Outlook)
- Twilio
- Docker
- AWS
- GitHub Actions
Quick answer
What is CRM software development?
CRM software development means building a customer relationship management system around how your business actually wins and looks after clients, instead of bending your process to fit an off-the-shelf platform. A bespoke CRM holds your leads, pipeline, accounts and client communication in one place, with the fields, workflows and reports your team really uses.
Not every project needs a full build. Sometimes the right answer is to keep the platform you have and fix what sits around it, which is where our CRM consultancy starts. If the main pain is data re-keyed between systems, CRM integration is usually cheaper than a new CRM, and we will tell you so.
SpiderHunts Technologies Ltd is a UK-registered software company (Companies House 16718403) with a London registered office and an engineering team in Lahore, founded in 2020. We build bespoke CRM software mainly for UK businesses, and also work with clients in the US, Canada and Europe. Where a business also needs back-office software, we build custom ERP modules as a separate phase.
What's included
Bespoke CRM development services
Most projects combine several of these. Discovery tells you which ones you actually need, and which you can leave out.
02
CRM customisation
Custom modules, fields, workflows and extensions for a CRM you are keeping, built against its API so they are designed to survive vendor updates.
03
CRM and accounting integration
Two-way sync between your CRM and Xero, QuickBooks, Sage, Shopify, Stripe and Mailchimp for invoices, payments, contacts and products, with retries, logs and alerts. See CRM integration for integration-only projects.
04
Workflow automation
Lead routing, follow-up reminders, quote-to-invoice flows and approval chains inside the CRM. We can also add AI agents on top of your CRM to draft follow-ups or update records from emails.
05
Client portals
Secure, branded portals where your clients see project status, invoices and documents, raise requests and message your team, all reading from the same CRM records.
06
CRM data migration
Moving from a legacy CRM or spreadsheets, with data cleaning, deduplication, reconciliation against the source and a parallel run before switchover.
07
Reporting dashboards
Dashboards that pull sales, finance and marketing data into one view, so pipeline and revenue figures come from one source instead of three spreadsheets.
08
Custom ERP modules
Where the back office also needs software, we build ERP modules for inventory, procurement, production and finance that share data with your CRM rather than sitting beside it.
The problem we solve
Why off-the-shelf CRM stops fitting as you grow
Packaged CRMs are designed for a typical sales team. The further your process sits from that, the more the compromises cost in licences, consultancy and workarounds.
With a CRM that does not fit
- Per-seat licences that rise with every hire
- Configuration work every time your process changes
- Customisations that break on major platform updates
- Staff keeping shadow spreadsheets beside the official system
- Client, sales and accounting data that never quite agree
- No clean way to leave the vendor and take your data with you
With a bespoke CRM
- One build cost, with no per-seat licence fees
- Software built around your workflow from day one
- You own the codebase on full payment and can change anything
- Client records synced with your accounting tools
- One place for pipeline, accounts and client communication
- Full ownership and portability of your data
Not sure you need a new CRM? Start with a free CRM health check
A 30-minute review of how your CRM is set up, what's not syncing and what to fix first. Sometimes the answer is to keep your current platform and connect it properly, and we will say so.
Examples
Bespoke CRM software we build
Illustrative examples of what we build, not client results.
Recruitment CRM with billing sync
A custom CRM for a recruitment agency with candidate-to-job matching, interview scheduling, client pipeline tracking and placement fees synced to Xero.
Aim: candidates, clients and billing in one system
Matter and client CRM
Matter management and client CRM for a law firm, replacing spreadsheets with case tracking, time recording, document management and a client portal. See CRM for law firms.
Aim: every matter and client contact in one place
Property management CRM
A custom CRM for a lettings agency with landlord and tenant portals, maintenance ticketing, rent tracking and automated renewal reminders.
Aim: every property, landlord and tenant in one platform
CRM with an ERP module
A sales CRM connected to a custom ERP module covering purchase orders, bill of materials, production scheduling, stock and invoicing.
Aim: orders to invoices without re-keying
How we work
How we build bespoke CRM software
Four stages, with approval gates between them, so you see the design before development and working software every two weeks.
Discovery and process mapping
We map how leads, clients and money move through your business, and document every integration point and data source. You get a scope and a written quote with exclusions.
Typically 1 to 3 weeksData model and design
We design the data model, field mapping, user roles, API layer and screen wireframes. You review and approve them before development begins.
Typically 1 to 3 weeksBuild in two-week sprints
Each sprint ends with a demo of working features, including workflow automation and integrations, so you see real progress throughout rather than one big reveal.
Typically 6 to 16 weeksMigration, training and go-live
We migrate, deduplicate and reconcile your existing data, train your team, hand over documentation and run old and new systems in parallel before switchover. An optional support retainer is available.
Typically 2 to 4 weeks
Clear scope · Regular demos · Full handover
Before you commit
When a bespoke CRM is worth it, and when it isn’t
Bespoke is not always the right answer. If a packaged CRM covers your process with minor compromises, keep it and integrate it.
Build bespoke when…
- Per-seat licences are a large, growing line in your budget
- Your process is a real differentiator the platform cannot model
- Staff run shadow spreadsheets alongside the official system
- You need deep, two-way integration with accounting, ecommerce or production tools
- You want to own your data and leave a vendor cleanly
Don’t build bespoke when…
- A standard HubSpot or Salesforce setup already covers what you do
- You have a handful of users and licence costs are small
- Nobody can yet describe how the process should work
- You only need two tools to talk to each other: an integration is far cheaper
- There is no one on your side to own the system after launch
Make the right choice
Bespoke CRM vs Salesforce vs HubSpot
Salesforce and HubSpot are strong products for businesses that fit them. Bespoke wins when your workflow, headcount or integration needs sit outside that fit.
| What matters | Bespoke CRM | Salesforce | HubSpot |
|---|---|---|---|
| Fits your exact workflow | Built around it | Highly configurable, with admin or developer effort | Configurable within its standard objects and tiers |
| Licence fees | No per-seat fees; you pay hosting | Per-user subscription | Subscription by tier and seats |
| Code ownership | Yours on full payment | Platform owned by the vendor | Platform owned by the vendor |
| Integrations | Built to your spec against any API | Large app marketplace and APIs | Large app marketplace and APIs |
| Time to first use | Typically 8 to 12 weeks for a focused CRM | Faster for a standard setup | Often quickest for standard sales and marketing |
| Best for | Distinct processes, growing teams, deep integration | Complex sales organisations with admin resource | Teams wanting marketing and sales in one tool |
Pricing
How much does bespoke CRM software development cost in the UK?
A focused bespoke CRM typically costs £12,000 to £40,000. A full CRM with client portal, reporting and accounting integration costs £30,000 to £80,000. Integration-only projects start at £5,000, and a multi-module ERP costs £40,000 to £100,000+.
CRM integration
£5,000 to £20,000
Typically 2 to 6 weeks
Integration software that syncs your existing CRM with your accounting and ecommerce tools, with retries, logs and alerts.
Get a quote →Focused bespoke CRM
£12,000 to £40,000
Typically 8 to 12 weeks
Pipeline, contacts, activity, reporting and one or two key integrations, built around your sales process.
Get a quote →Full CRM with client portal
£30,000 to £80,000
Typically 12 to 16 weeks
CRM plus a branded client portal, reporting dashboards and accounting integration.
Get a quote →Custom ERP modules
£40,000 to £100,000+
Typically 16 to 24 weeks
Inventory, procurement, production and finance modules connected to your CRM, with data migration and a phased rollout.
Get a quote →Prices exclude VAT. Every project gets a written quote with scope and exclusions agreed up front. Hosting is billed by your provider and estimated in your quote, and there are no per-seat licence fees. Timelines are typical estimates, confirmed after scoping.
Technology
Our CRM technology stack, in plain English
We use open, well-documented frameworks so your own team, or any developer you choose, can maintain and extend the CRM after handover. The front end is what your staff and clients click on, the back end holds the business rules, the database stores your records, and APIs connect the CRM to your other tools.
Front end
- React
- Next.js
Back end
- Python
- Django
- FastAPI
- Celery
Data
- PostgreSQL
- MySQL
- Redis
Integrations
- Xero API
- QuickBooks API
- Sage API
- Stripe
- Shopify
- Mailchimp API
- Microsoft Graph (Outlook)
- Twilio
Infrastructure
- Docker
- AWS
- GitHub Actions
Who it’s for
Bespoke CRM software for UK sectors
Each sector has its own records, rules and bottlenecks, so the data model and workflows differ too.
Legal & professional servicesMatter management, time recording, client billing and enquiry pipelines.Property & constructionLandlord, tenant and subcontractor records, compliance workflows and client portals.
Recruitment & staffingCandidate databases, job matching, interview pipelines and client accounts.
ManufacturingSales CRM connected to production scheduling, stock and procurement.
Wholesale & distributionCustomer ordering, account pricing, delivery scheduling and reconciliation.HealthcarePatient relationships, appointments and referral tracking, built to support UK GDPR requirements.FAQ
Bespoke CRM development FAQs
Straight answers to what buyers ask before they sign.
Still have a question?
Ask us directly. A senior engineer reads every question.
Ask about your projectHow much does bespoke CRM software development cost in the UK?
A focused bespoke CRM typically costs £12,000 to £40,000. A full CRM with a client portal, reporting and accounting integration costs £30,000 to £80,000. Integration-only projects start at £5,000. Prices exclude VAT, and every project gets a written quote with scope and exclusions agreed up front after a free discovery call.
Is a bespoke CRM better than Salesforce or HubSpot?
It depends on how far your process sits from theirs. For a small team with a standard sales process, a packaged CRM is usually cheaper. We are independent, not a vendor partner, so we also offer Salesforce consultants and HubSpot consultants when keeping the platform is the better call.
How long does custom CRM software development take?
A focused CRM typically takes 8 to 12 weeks, and a full CRM with a client portal typically takes 12 to 16 weeks. We deliver in two-week sprints with a demo at the end of each, so you see working software throughout. Timelines are confirmed in writing after discovery and scoping.
Do you also build ERP systems?
Yes. A CRM runs the front office: leads, pipeline, accounts and client communication. An ERP runs the back office: inventory, procurement, production and finance. We build custom ERP modules, typically £40,000 to £100,000+, usually as a later phase that shares data with your CRM instead of duplicating it.
Can you connect our CRM to Xero, QuickBooks or Sage?
Yes, and it is often the cheapest fix. We build two-way sync between your CRM and Xero, QuickBooks or Sage for invoices, payments, contacts and products, plus Shopify, Stripe and Mailchimp. Every sync has retries, logging and alerts. Our CRM integration service covers projects that need no new CRM.
Can you migrate data from our existing CRM?
Yes, through our CRM migration service. Data migration is a standard part of every CRM project. We extract, clean, deduplicate and import your existing data from Salesforce, HubSpot, spreadsheets or legacy databases, reconcile it against the source, and run old and new systems in parallel before switching over, so nothing is lost along the way.
Do we own the CRM software?
Yes. Ownership of the code transfers to you on full payment, as set out in your contract. You then receive the complete codebase, database schema, documentation and deployment access, with no licence fees to us. You can host it where you choose and have any developer maintain or extend it.
Is a bespoke CRM built for UK GDPR?
We build CRMs to support UK GDPR requirements: encryption in transit and at rest, role-based access, audit logging, right-to-erasure functions and a UK or EU hosting region. We document data flows for your data protection lead. Compliance remains your responsibility as data controller, and data processing terms are agreed per project.
Start here
Book a free CRM health check
Tell us how your current CRM is failing you. In a free 30-minute call we look at how it is set up, what is not syncing and what to fix first, then follow up with an honest view on whether you need a bespoke CRM, customisation or just better integration.
- You tell us what you needTwo minutes on the form, or a message on WhatsApp.
- A senior engineer reviews itAnd comes back with questions, a realistic range and an honest view on fit.
- Free 30-minute scoping callWe talk through scope, options and a realistic estimate, with no obligation.
Thanks, that’s with us.
A senior engineer reads every enquiry and will reply as soon as they can.
Want to take it further now?
Book a time that suits you, or send a message on WhatsApp.