We're a consulting firm with roots in customer communications. We close the gap between strategy and delivery - in processes, systems and projects that actually start running.
First joint station at SPS Germany, then parallel paths at Itella and itelya, joint management at docsellent with a management buy-out and exit to the Paragon Group, eight years as CEO and CTO of the Paragon DACH and CEE region. nexusX is the continuation of that collaboration.
Thomas develops strategies and implements them. He analyses where a company stands, decides which path is realistic - and accompanies the implementation with operational responsibility.
Thomas designs technology solutions and builds them. He evaluates systems, selects platforms, designs processes and runs implementations - with his own resources and operational responsibility through to go-live.
Consulting that stays in the project until the process runs.
Holger advises and leads directly inside projects. He gathers requirements, designs the target process, mediates between the business side and IT, and carries project leadership through into operations.
Monika is our AI assistant and makes sure AI here isn't just a topic, but how we work.
We work with companies for whom customer communication is not a peripheral task – but critical infrastructure. They include leading organisations in insurance, banking, energy, telecommunications and industry, as well as specialist CCM service providers responsible for millions of documents on behalf of their clients.
nexusX was founded in 2025 in Bamberg by Thomas Simon and Thomas Sperl. Both managing partners bring decades of operational experience in the customer communications market, on both client and vendor sides. Strategy, platform responsibility, M&A integration and restructuring are not advisory topics for them but lived practice. nexusX is the logical next step: a consultancy that brings this experience directly into client projects, without the detours of a large organisation.
Because there is a gap between concept and reality that nobody closes in most consulting engagements. Concepts are written, roadmaps are handed over, presentations are delivered. What happens afterwards is left to the client. nexusX stays in delivery because that is where the actual work happens and because that is precisely where most projects fail or fall short of their potential.
With a first conversation of 30 to 45 minutes, depending on the constellation. This is typically followed by a two- to four-week discovery engagement with a clear diagnosis and three to five concrete levers. The discovery either turns into a delivery engagement or an honest recommendation to another provider if nexusX is not the right partner for the matter at hand.
Yes, across the entire DACH region. We are based in Bamberg and have engagements in Germany, Austria and Switzerland. On-site sessions take place as needed. Day-to-day project steering runs remotely via the Xentora platform in combination with Microsoft Teams.
nexusX does not commit to a fixed technology stack. Which technology is used is decided per project based on the following criteria: What are the clients already using? What fits the task? What can be maintained later? The principle is simple: technology must fit the organisational reality of the client – not the other way around.
In practice, this means we often work with the technologies already in use within the organisation, rather than introducing specialist solutions that no one can maintain afterwards. Open-source components such as Linux, Docker or GitHub are equally standard when they are the better choice. AI integration runs via established language models, where it delivers real value.
Our strength lies in bringing all these aspects together. We connect the right technologies, the right specialists and the knowledge of the client’s organisation in a way that results in a coherent outcome – not a collection of individual building blocks. Where a task requires deep specialist knowledge, we bring the right people on board. We always keep the big picture in mind.
A good example is Xentora: since the platform needed to be integrated into users’ everyday office workflows, Microsoft 365, Azure and the Power Platform were the natural foundation. For a different project with different requirements, this can look very different.
Thomas develops strategies and implements them. He analyses where a company stands, decides which path is realistic - and accompanies the implementation with operational responsibility.
His career has taken him through the entire value chain of customer communications: from project management in document-intensive operations to building and selling his own CCM company, through to CEO responsibility for a multinational group with 240m EUR in revenue.
As Managing Director of docsellent, he took over a company in the CCM market, made it profitable through a turnaround and sold it to the Paragon Group in 2017. He then led seven sites in Germany, Poland and the Czech Republic as CEO of the DACH/CEE region, owned P&L and growth, integrated five acquisitions and built a network of more than 900 employees.
That combination is rare: strategic clarity about organisations and markets - and genuine craft in CCM at the same time. Thomas knows the cost structures behind document processes, how inbound and output chains connect, where automation has leverage and where it fails. He thinks in systems, decides on the basis of numbers and takes responsibility for results - not for concepts.
With nexusX he supports companies through transformations, reorganisations and growth phases - with particular focus on document-driven communication processes, operational optimisation and M&A integration.
Thomas designs technology solutions and builds them. He evaluates systems, selects platforms, designs processes and runs implementations - with his own resources and operational responsibility through to go-live.
His career runs from solution design and digital production control at Swiss Post Solutions, through building automated end-to-end platforms as CTO at docsellent, to overall technology responsibility for the Paragon DACH/CEE region - international sites, cross-border tech teams, scalable IT infrastructure.
What sets him apart: Thomas knows the entire document chain - from inbound processing to regulated output. He has built inbound systems with OCR and AI-supported classification, selected and implemented CCM platforms, designed and operated output chains for large clients in insurance and banking. Linking inbound and output, reducing media breaks, automating document-driven communication processes - that is his core ground. Add the regulatory context: systems commissioned under ISO 27001 and TISAX, nearshore structures built, international teams led.
With nexusX he brings that depth into concrete projects: system selection and implementation in CCM and output management, process automation, technology transformation - always with the aim of turning architecture decisions into measurable operational results.
Holger advises and leads directly inside projects. He gathers requirements, designs the target process, mediates between the business side and IT, and carries project leadership through into operations.
His career runs from project management at docsellent, where he owned new-client implementations for banks, insurers, health insurance funds, telcos and utilities, to Head of Service Management at Paragon across three sites and around 30 staff. Clients whose communication is regulated and deadline-bound, and an operation that has to hold that every single day.
Both are houses we have worked in ourselves. We know Holger's work from live operations, not from a job interview.
What sets him apart: Holger knows the chain from contract and SLA through implementation to delivery and invoicing, and he knows which handovers it tears at. Anyone who has first negotiated the client promise and then carried operational responsibility against it plans implementations differently. He brings that experience into the target design, before it gets expensive in operations.
At nexusX he works where projects cross over into operations.