Built on 30 years of receivables expertise

Kleverbill combines decades of experience in professional debt collection by S/F/G Accounts Receivable Management with modern automation. This allows companies to have full control over their dunning process – quickly, securely, and brand-aligned.

Our Experience

KLEVERBILL was conceptualized in 2016 and launched in 2018 with our first pilot customer. From the beginning, the software has been developed and optimized in close collaboration with users. Since the launch, KLEVERBILL has been continuously enhanced based on real operational requirements.

20 years

Accounts Receivable Management Expertise

20 years

Accounts Receivable Management Expertise

€5M+

processed invoices

50,000+

Debt collection cases processed via Kleverbill

20 years

Experience in debt collection

20 years

Accounts Receivable Management Expertise

€5M+

Processed invoices

€5M+

processed invoices

50,000+

Accounts Receivable Cases from Kleverbill

50,000+

Debt collection cases processed via Kleverbill

KLEVERBILL was not conceived as a software idea, but arose from the growing demand for collection processing in the S/F/G back office

KLEVERBILL did not originate as a software idea, but from increasing demand for dunning process management in the S/F/G back office

Since 1995, S/F/G Forderungsmanagement GmbH has collaborated with companies all facing the same challenges: unpaid invoices, awkward reminder calls, chaotic Excel sheets, loss of time, and pressure on cash flow. We observed how much energy was being diverted to administration rather than growth and how easily customer relationships could suffer due to impersonal or poorly timed reminders.

In 2016, we resolved to address this issue fundamentally, not by increasing personnel, but by enhancing our systems.

KLEVERBILL was developed in collaboration with actual clients who were frustrated with the manual process of chasing payments. Each feature is informed by real invoices, actual objections, genuine delays, and the true financial pressures faced by companies with an annual recurring revenue of 1-10 million euros.

The goal was simple: Provide businesses with control, clarity, and peace of mind in their receivables process.

Heute treibt diese Mission immer noch alles an, was wir entwickeln. KLEVERBILL unterstützt Unternehmen dabei, schneller bezahlt zu werden, Stress in der Buchhaltung zu reduzieren und ihre Kundenbeziehungen zu schützen – alles durch vollständig anpassbare Automatisierung, kompromisslose Sicherheit und vollständige Transparenz.

What used to be a source of daily frustration has now become a seamless system operating in the background, allowing businesses to concentrate on their core priorities.

Zeitersparnis
Überblick über den Mahnprozess im Büro
Rechnungsstellung unter Eigenmarke
Zeitersparnis
Überblick über den Mahnprozess im Büro
Rechnungsstellung unter Eigenmarke

Since 1995, S/F/G Forderungsmanagement GmbH has collaborated with companies all facing the same challenges: unpaid invoices, awkward reminder calls, chaotic Excel sheets, loss of time, and pressure on cash flow. We observed how much energy was being diverted to administration rather than growth and how easily customer relationships could suffer due to impersonal or poorly timed reminders.

In 2016, we decided to address the root cause—not by adding more staff, but by implementing better systems.

KLEVERBILL was developed in collaboration with actual clients who were fed up with manual payment requests. Every feature has been shaped by real invoices, objections, delays, and financial concerns.

Our goal is clear: to provide companies with control, clarity, and calm regarding their outstanding balances.

Heute treibt diese Mission immer noch alles an, was wir entwickeln. KLEVERBILL unterstützt Unternehmen dabei, schneller bezahlt zu werden, Stress in der Buchhaltung zu reduzieren und ihre Kundenbeziehungen zu schützen – alles durch vollständig anpassbare Automatisierung, kompromisslose Sicherheit und vollständige Transparenz.

What used to be a source of daily frustration has now become a seamless system operating in the background, allowing businesses to concentrate on their core priorities.

Zeitersparnis
Überblick über den Mahnprozess im Büro
Rechnungsstellung unter Eigenmarke

Since 1995, S/F/G Forderungsmanagement GmbH has collaborated with companies all facing the same challenges: unpaid invoices, awkward reminder calls, chaotic Excel sheets, loss of time, and pressure on cash flow. We observed how much energy was being diverted to administration rather than growth and how easily customer relationships could suffer due to impersonal or poorly timed reminders.

In 2016, we resolved to address this issue fundamentally, not by increasing personnel, but by enhancing our systems.

KLEVERBILL was developed in collaboration with actual clients who were frustrated with the manual process of chasing payments. Each feature is informed by real invoices, actual objections, genuine delays, and the true financial pressures faced by companies with an annual recurring revenue of 1-10 million euros.

The goal was simple: Provide businesses with control, clarity, and peace of mind in their receivables process.

Today, this mission drives everything we develop. KLEVERBILL aids in generating faster payments, reducing stress in accounting, and protecting customer relationships through comprehensive white-label automation, uncompromising security, and complete transparency.

"What used to cause daily frustration is now a system that operates seamlessly in the background, allowing companies to focus on their core priorities."

Zeitersparnis
Überblick über den Mahnprozess im Büro
Rechnungsstellung unter Eigenmarke

The Team Behind Kleverbill

Developed by experts. Driven by a clear objective.

We combine decades of expertise in receivables with modern automation to develop software that works for real businesses.

Valentin Bayh

Managing Director

Part of the SFG Group since 2016, strategically responsible for Kleverbill.

Valentin Bayh

Managing Director

Part of the SFG Group since 2016, strategically responsible for Kleverbill.

Eleonora Vurmo

Support & Customer Service

Since 2019, Eleonora has been assisting clients at every stage of their journey with Kleverbill.

Eleonora Vurmo

Support & Customer Service

Since 2019, Eleonora has been assisting clients at every stage of their journey with Kleverbill.

Sven Scheller

Operations Manager

With the company since 2005 and involved in development from the start. No one knows the system better.

Sven Scheller

Operations Manager

With the company since 2005 and involved in development from the start. No one knows the system better.

Sven Müller

IT Administrator

Since 2025, he has been a part of the team, contributing deep expertise in IT security, infrastructure management, and process optimization.

Sven Müller

IT Administrator

Since 2025, he has been a part of the team, contributing deep expertise in IT security, infrastructure management, and process optimization.

Nadja Nachtnebel

Key Account Manager

With the company since 2018, now responsible for managing our largest debt collection clients.

Nadja Nachtnebel

Key Account Manager

With the company since 2018, now responsible for managing our largest debt collection clients.

Enis Erdal

Senior Sales Manager | Key Account Field Sales

Since joining the team in 2023, brings 18 years of experience in receivables management and possesses comprehensive knowledge of the industry.

Enis Erdal

Senior Sales Manager | Key Account Field Sales

Since joining the team in 2023, brings 18 years of experience in receivables management and possesses comprehensive knowledge of the industry.

Don't be affraid, reach out and connect with us!

Don't be affraid, reach out and connect with us!

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