Custom CRM Development

Custom CRM development that starts with the system you already run

You are probably not looking to replace anything. Your ERP, your CRM and your accounting package each do their job. What none of them was tailored to is the part of the work that decides rather than records: how a special gets priced, which customer gets which terms, when an order may be released.

Based on our experience, that part is best built one bounded piece at a time, on top of the systems you already run. Nothing gets switched off, you see a fixed price before our team starts, and you can stop after the first piece if it does not earn its place.

What we build

We build for companies whose customer work has outgrown a standard product — from large B2C operations handling thousands of orders a day to small B2B teams where every deal is negotiated one at a time. What they have in common is a process that is genuinely their own.

• A system that carries an enquiry all the way to an invoice. One record for the customer, the quote, the order and the documents, instead of five places to look and a phone call.

• Your rules, written down properly. How a special gets priced, which customer gets which terms, when a deal may be released — computed by the system instead of remembered by one person.

• A CRM layer on top of what you already run. Your ERP and your accounting stay where they are, and the new part covers what they were never built to hold.

• A CRM that goes where your people sell. Our team built the mobile application for Raynet’s own CRM, so we know that side of the work from the inside.

• A CRM that replaces the spreadsheets your team really works in. Here is how we handle the migration from Excel to a custom CRM.

• The numbers your board asks for, computed from the record the work already happens in, instead of reassembled in a spreadsheet every month.

Fifteen years of building custom CRM systems, across industries

The same shape turns up in very different places. A few our team can describe:

• For an automotive supplier, quoting a wire frame meant an engineer reading the 3D model for half a day. We built their own calculation rules into the system, and a new frame is now broken down in about fifteen minutes.

• For an auction house in Berlin, off-the-shelf did not fit and an in-house build had stalled. We rebuilt CRM and ERP as one system around how the house actually works, and we still operate it, because they asked us to. The system and its code have been theirs since handover.

• For Raynet, a CRM vendor, we built the mobile application their own customers use.

• For a contracting agency, we built one system for part-time jobs, employees, cash flows, payments and statistics — each of which used to live in its own record.

• For a client in the United States, we built a platform that connects the different invoice formats law firms and their clients each use into one process, so review, approval and tracking stopped being manual work.

• For a B2B packaging supplier, spreadsheets kept the orders moving until they became the ceiling. We built an order-management system around their real process, and a year later they came back to extend it.

There are many more we have not listed here, including work we can only describe under NDA. Ask us on the call — our team is glad to walk you through the projects closest to your own work.

Connect it to what you already run

Almost nobody starts from nothing. You already run a CRM, an ERP or an accounting package, and the real question is how to make it carry one more thing.

The new piece talks to those systems through their documented interfaces: the Raynet API, Helios, Pohoda, ABRA, K2, Outlook and Microsoft 365, or the in-house system you have run for years. We start read-only, and any write path is named, scoped and signed off by whoever runs that system before it goes live. Your accounting, your ledger and your master data stay exactly where they are.

How we work

• A walkthrough. Thirty minutes on a screen-share: the spreadsheet, the queue, the workaround. You get a short written read and a fixed price for the first working version.

• The first working piece. One process, chosen because it costs you the most today. It goes live on its own and does real work.

• A new version every two to three weeks, so what we build follows what your people actually ask for.

• You talk to the people who build it. Our developers have 20+ years of writing software behind them, and they are in the room from the first call.

• Support after handover. Our team keeps the system current, or your own team does. It is documented well enough that another team could take it over tomorrow.

What you own at the end

You own what we build. All of it. Source code, data and IP are yours from the first commit, in your repository, running in your cloud account.

No licences. No seats. No credits. No tokens. Your software bill does not rise when the work does.

One carve-out: standard third-party components — a database, a cloud, a mail service — keep their own licences.

63% of our clients come back for the next project, after the last one was handed over and running without us.

When we will tell you to buy instead

We build custom in a minority of cases, and we would rather say so early than late.

If your sales motion is straightforward — contacts, deals, emails, reminders and a report at the end of the month — a product will do that better and more cheaply than anything built for you. If that is the job, buy Raynet, Pipedrive or HubSpot and spend the rest of the money on using it properly. The same holds when everything you are missing is a setting, a field or an integration the product already ships: a good implementation partner closes that gap faster than any development team.

Building pays when the deciding part of your work has no product behind it — when the price comes from a drawing or from your own calculation rules, when how you quote and plan is the reason customers choose you, or when fitting the product would mean running the company differently.

Let’s walk through your process together

Book a free consultation, or invite our team for a strategy session: we come to your office with one of our developers, go through the process with the people who run it, and put together the best solution for your case on the spot. If that turns out to be a product you should buy, we will name it and tell you so. Transparency is our credo, and it is the reason our clients come back.