Websites & web applications
Fast, maintainable sites and customer portals connected to the systems you already run, built to modern search and performance standards.
Business website from €6,500
See an example project →Practice
Software & Technology
Working software and a dependable technology setup without running an IT department. Websites, custom tools, automation, and senior technical judgment.
We build working software for businesses that do not want to run a development department, and we bring senior judgment to technology decisions that outlast any single project. Engineering is led by the founder, a career software engineer, with specialists in design, infrastructure, and security joining where the scope requires them.
What this covers
Custom software & internal tools
Purpose-built tools that replace spreadsheet chaos and paper processes, delivered in weeks and owned by you outright.
from €9,500
See an example project →Automation & systems integration
Connecting CRM, accounting, and operations systems so hours of weekly manual work disappear for good.
from €4,900
See an example project →Legacy modernisation
Rescue and staged renewal of aging systems the business depends on, without a risky big-bang rewrite.
assessment from €6,500
See an example project →IT security review & hardening
A structured review of the basics that decide most small-company incidents, accounts, backups, access rights, and update practice, with a prioritised hardening plan. Where the scope calls for certified work such as penetration testing, accredited partners carry it out and we coordinate.
review from €2,900
See an example project →Blockchain & digital assets
An independent verdict on whether a blockchain or tokenisation approach earns its place, which ledger, custody and wallet model fit, and what to ask your lawyer, drawn from the founder's years building a digital-asset issuance platform. Prototypes on a test network where the verdict is yes.
feasibility and architecture review from €4,900
See an example project →Fractional CTO & technology advisory
Senior technical judgment on retainer for vendor selection, architecture decisions, and build-versus-buy questions.
from €3,400 per month
See an example project →How we work
Every engagement is led personally by the founder, with one accountable senior contact from the first call to the final deliverable. Where the scope demands depth, senior specialists from a network built across the Rhein-Main finance and technology scene join the work, and where regulation requires certified expertise, accredited partners carry it out.
Work is quoted as a fixed price with a defined scope before it starts. Projects typically run €5,000 to €120,000, quoted as a fixed price with a defined scope, with working software visible in the first weeks.
Every fixed-price engagement carries our 100% money-back guarantee: full refund on request within 14 days of delivery, no reason required. How the guarantee works →
Our consulting and software work is covered by professional indemnity and business liability insurance (Markel Insurance SE, arranged through exali). Certificate of insurance on request.
Typical engagements
- An internal tool that digitises a paper or spreadsheet process end to end
- A customer portal connected to your existing CRM and invoicing systems
- A security review with a hardening plan your IT provider can execute
- A prototype built in weeks to test a product idea before committing capital
Case studies
Delivered work
Our own site to a 100% Semrush Site Health score in four crawls
Hamnett Enterprises GmbH (our own company) · Eschborn · Internal build. Published price for the same scope, from €6,500
See an example project →Illustrative example
Bilingual website for a heating contractor in Hofheim
Heating and plumbing contractor, 14 staff · Hofheim am Taunus · €7,850 fixed price
See an example project →Illustrative example
Shift planning tool replaces a shared spreadsheet at a cleaning firm
Commercial cleaning company, 45 staff · Frankfurt am Main · €9,500 fixed price
See an example project →Illustrative example
Order-to-invoice automation for an office furniture dealer
Office furniture dealer, 12 staff · Eschborn · €4,900 fixed price
See an example project →Illustrative example
Modernisation roadmap for a parts wholesaler's 2007 order system
Industrial parts wholesaler, 45 staff · Hanau · €7,900 fixed price
See an example project →Illustrative example
Security review closes 23 gaps at a tax advisory office in Höchst
Tax advisory office, 16 staff · Frankfurt am Main · €2,900 fixed price
See an example project →Illustrative example
Fractional CTO steers a Wiesbaden training firm's portal rebuild
Professional training provider, 28 staff · Wiesbaden · €3,400 per month, 6 months
See an example project →Illustrative example
Independent blockchain verdict for a Frankfurt fund administrator
Fund administrator, 45 staff · Frankfurt am Main · €4,900 fixed price
See an example project →Discuss this with us
Describe your situation in a few sentences. You get a concrete proposal with scope and a fixed price, at no cost.