If your business runs on a handful of systems that don’t talk to each other, you already know the cost. Someone re-keys the same order into two places, the figures never quite reconcile, and the report you actually want is scattered across a CRM, an accounting package and three spreadsheets. The off-the-shelf integration market is large and crowded, but most tools ask you to bend your processes to fit theirs. ByteGears does the opposite. We build custom data integration platforms for UK businesses, shaped around how your team already works.
Our developers are UK based. We connect your systems, design UK data compliance into the build, and hand you a platform you own outright. There are no monthly per-seat fees, no usage meter ticking over, and you’re not waiting on a vendor’s roadmap for the feature you need next quarter.
When integration starts to matter
For a very small business, spreadsheets and a bit of Zapier usually cope. The pressure tends to build as you grow: more SaaS tools get added, each one creating a new island of data, and the manual work of joining it all up quietly becomes someone’s full-time job.
The point where businesses usually decide to act tends to be one of these:
- Manual data handling has become unmanageable, and the numbers are stale or wrong by the time anyone uses them
- Adding the latest tool has created yet another silo, and the integration debt is mounting
- A compliance or audit question exposed that you can’t show where data came from or who changed it
- The team that does reporting is waiting days for clean data, and the dashboards aren’t trusted
- The person who “knows the Excel macros” or maintains the brittle integration scripts has left
If any of that sounds familiar, the problem isn’t the people. It’s that the data was never properly joined up.
Where off-the-shelf integration tools fall short
Generic platforms work well for simple, predictable jobs. They tend to struggle once your situation is even slightly specific:
- Pricing that moves with you. Usage-based tools charge by rows synced, events processed or compute consumed. As data volumes grow, the bill grows with them, and it rarely matches the original sales quote. Per-connector and enterprise pricing carry their own surprises, where required modules and support tiers get bundled in after the fact.
- No connector for the system that matters. Pre-built connectors cover the popular cloud tools. Your bespoke ERP, an industry-specific package or a long-serving internal database often has no connector at all, leaving you with manual exports anyway.
- Limited transformation. Many modern tools move data well but transform it poorly. Anything beyond simple mapping, like multi-currency settlement, bespoke revenue rules or your own customer segmentation, ends up as a workaround.
- Vendor lock-in. Pipelines built inside a proprietary platform are hard to take elsewhere. If pricing changes or the tool is acquired, migrating can mean rewriting everything.
- Steep tooling. Enterprise platforms pack thousands of features you’ll never use, and despite “low-code” claims, they often still need specialist staff or paid professional services to run.
So the spreadsheets stay open, the manual reconciliation continues, and the data you’d actually use to make decisions stays out of reach. The licence fee is rarely the real cost. The lost hours, the errors and the slower decisions are.
What ByteGears builds instead
We start with your data, not our code
Before anyone writes anything, we map your sources, your target shape, your volumes and how often things need to refresh. The platform should fit the way your business runs, not replace it with something unfamiliar.
A pipeline you own and can read
You get the code, the documentation and the data dictionary. It runs on your infrastructure, in a UK cloud region or on-premise. You can audit every step, understand what each field means, and hand it to another team if you ever need to.
It connects to what you already run
CRM, ERP, accounting, ecommerce, payments, support tools, BI platforms. Where there’s a clean API we use it. Where there isn’t, we build a connector directly against the database or file feed, including for the legacy systems generic platforms won’t touch.
Fixed cost, no usage meter
Development has a known price agreed up front. After that there’s no perpetual SaaS bill and no per-row charge. Finance teams get budget certainty instead of a number that moves with your growth.
Built to survive source changes
Source systems change without warning. We build in schema checks, validation, row-count monitoring and failure alerts so a broken or empty feed is caught quickly, not trusted for weeks.
UK compliance designed in
GDPR, the Data Protection Act 2018, HMRC audit and retention rules and any sector-specific requirements are part of the design from day one, not bolted on later.
Features and modules we typically build
Every build is tailored, but most include some mix of:
- Ingestion layer connecting your CRM, accounting, ecommerce, payments and other sources, by API or direct connector
- Transformation and deduplication for cleansing, mapping, joining and applying your own business rules
- Loading into a data warehouse, database or BI tool, on a schedule or in real time where it earns its place
- A consolidated dashboard pulling KPIs and reports from across systems into one trustworthy view
- Monitoring and alerting with pipeline health, data-quality checks and failure notifications by email or chat
- Audit logging and data lineage showing who accessed data, what changed, and where each figure originated
- Role-based access and encryption meeting UK data standards, down to individual user or department
- Reverse sync to push cleaned, joined data back into operational tools like your CRM where it’s useful
- A REST API so new tools and reports can be connected later without a rebuild
- Modules for MTD, VAT and other HMRC reporting where accounting data is in scope
How a project runs
Most projects break into clear stages, and we usually deliver a working first version before tackling the full scope.
Discovery and planning (2-4 weeks)
We interview the people who use the systems, document every source, target schema, data volume and refresh frequency, then write a detailed spec. This is also where we catch data-quality problems early, before they cost weeks later.
First working version (8-12 weeks)
Rather than building everything at once, we start with three to five critical sources, core transformation, a single destination, monitoring and documentation. You get something useful, and trustworthy data, early.
Expansion (3-6 months as needed)
Once the core is stable, we add the rest: more sources, advanced transformations, reverse sync, real-time feeds where they’re justified, and a self-service view for non-technical users.
Testing, go-live and support (ongoing)
QA and user acceptance testing before cutover, careful monitoring through go-live, and documentation plus hands-on training. Support packages are available if you want one.
What it costs, and why ownership tends to win
There’s an up-front cost, no getting around that. As a rough guide, a focused integration of a few sources is a smaller piece of work than a broad build spanning twenty-plus systems and legacy connectors, and we’ll give you real numbers in the free consultation.
Over a few years, the maths usually favours owning the platform:
- No surprise bills. Fixed-price projects, with none of the usage-based escalation, warehouse compute overruns or bundled-module surprises that catch teams out on SaaS contracts.
- You own the IP. It’s an asset on your side of the table, not software you rent and can’t take with you.
- Custom solutions get more competitive as you scale. At mid-market and enterprise volumes, especially with proprietary or legacy systems in the mix, a one-off build often beats years of subscriptions.
- No vendor lock-in. If priorities change, your data and pipelines are yours, and you’re not held hostage by a pricing change or an acquisition.
When SaaS is genuinely the better call
We’d rather be straight with you. A custom build isn’t always the right answer. If your needs are a simple one-to-one sync, like a single CRM feeding a BI tool, your data volumes are low and predictable, every source has a solid pre-built connector, and you have no unusual business logic, an off-the-shelf platform will probably serve you well and cost less to start.
Custom development earns its place when the picture is more specific: proprietary or legacy sources with no connector, transformation logic unique to your business, large or growing volumes where usage pricing would escalate, a need for fixed budgets, regulatory requirements beyond the standard offering, or a real concern about lock-in. If you tell us SaaS is the smarter route for you, we’ll say so.
Where this gets used
A few examples of how integration work plays out by sector:
- Retail and ecommerce: keeping stock in sync across the website, physical stores and warehouses, and merging POS, online and loyalty data into one customer view
- Financial services: reconciling transactions across banks and payment processors, building unified customer profiles, and aggregating data for FCA and HMRC reporting with the audit trails those require
- Manufacturing: linking demand forecasts, inventory, supplier lead times and equipment data so production planning works from one set of figures
- Healthcare: consolidating patient records across clinics, labs and clinical systems, built to NHS data security expectations
- Professional and legal services: joining practice or matter management to accounting and document systems
- Marketing agencies: bringing client campaign data together from ad platforms, analytics and CRM for clean reporting
- Construction: tracking project costs across estimating and accounting software
- Nonprofits and education: unified donor or student records across fundraising, admin and engagement platforms
Whatever your sector, the goal is the same: one trustworthy set of data, joined up properly, that your team can act on without re-keying or second-guessing.
Common Questions About Custom Data Integration Platforms
How does custom development compare to SaaS platforms like Fivetran or Boomi on cost?
A custom build has a known cost agreed up front. SaaS integration tools usually charge by usage, by connector, or by data volume, so the bill moves with your growth and rarely matches the original quote. Usage-based platforms in particular can climb sharply once data volumes scale. For mid-market businesses with several systems, or anyone integrating proprietary or legacy software, a fixed-price build often works out comparable or cheaper across three to five years, with no licence renewals and no per-seat fees.
What's the typical development timeline?
A focused first version covering three to five core sources, basic transformation and a single destination usually takes 8 to 12 weeks. A broader build with 10 to 20 sources and more complex logic typically runs 3 to 6 months. Larger jobs with 30-plus sources or legacy system support can take 6 to 12 months. We almost always start with a smaller working version so you get value early rather than waiting for everything at once.
Can you connect to our existing and legacy systems?
Yes. Connecting common cloud tools like Xero, Salesforce, HubSpot, Shopify and Stripe is straightforward. The harder cases, where bespoke platforms tend to fall short, are niche or older systems with no pre-built connector: an internal application, an industry-specific package, or a database that has been running for fifteen years. We build connectors directly against those APIs, databases or file feeds. During discovery we audit every system and confirm exactly how each one will be reached.
How do you stop pipelines breaking when a source system changes?
Schema drift, where a source quietly renames or retypes a field, is one of the most common ways integrations fail, often loading blank or wrong data for weeks before anyone notices. We build in schema checks, validation rules, row-count monitoring and failure alerts so a broken feed is caught quickly rather than silently trusted. Every pipeline is documented so it can be maintained by us or by your own team.
What about data security and UK compliance?
Every build includes encryption in transit and at rest, role-based access controls and audit logging as standard. Where it matters, we design to your regulatory picture from the start: HMRC's six-year retention and immutable audit trails for finance and tax data, FCA expectations for financial services, or NHS data security requirements for health data. We can host in UK cloud regions or on-premise so data residency is clear and SCC complexity is avoided.
Do you provide training and ongoing support?
Yes. We hand over documentation, a data dictionary and pipeline definitions, plus hands-on sessions for the people who will use and maintain the platform. Support is available afterwards, from ad-hoc hourly help to a maintenance agreement. Because the architecture is modular and documented, adding new sources or reports later does not mean starting again.