JustOn gives people time



We make sure that companies & institutions win time by automating their financial processes.

Welcome at JustOn


We automate financial processes

We ensure that our customers save time by automating their financial processes. Our company was founded in Jena in 2010 by our CEO Marko Fliege, who is still active today. Since then, JustOn has been synonymous with the successful automation of financial processes on the Salesforce platform. Started as a Salesforce consulting company, we are now an important ISV Rigde Partner in the Salesforce ecosystem.


We digitize financials in SMBs

As leading providers for electronic billing, invoicing, payment and accounting, we support companies in digitizing their financial management. With our innovative software products, we automate the order-to-cash process of well-known companies worldwide. We give our customers time. In addition, they gain the ability to evaluate their key performance indicators at any time, increase their sales and improve customer loyalty.


Strong for non-profits

Non-profit institutions reduce their administrative effort with the help of our software. By digitizing and automating their donation management, accounting and membership administration, they gain a lot of time. Time that they can devote to the true purpose of their organization, whether this is social, cultural, sporting or scientific. Automation also helps to build stable relationships with supporters, members and partners.

Our products shape our success story


Our first product

Our success story began with JustOn Billing & Invoice Management, which offers much more than the automatic creation of invoices or the billing of a single business model. Our customers get a software product that allows them to bill recurring and usage-based models, commissions, services and products.


Ideal additions

In the following years, not only our main product was further developed, but other Salesforce add-ons were designed and implemented. The JustOn Connector for DATEV enables companies to transfer accounting data to DATEV, and the app JustOn SCHUFA Inquiries reduces the risk of payment defaults by automatically retrieving credit information.


The strong successor

JustOn Cash Management closes a significant gap between billing and accounting: the management of payments. Via an EBICS-compliant connection to banks, the application retrieves bank statements, collects SEPA direct debits or online payments and matches them automatically with open payment requests.

Our Management


Sten Grimmer is COO of the JustOn GmbH. After studying sports science, economics and psychology (M.A.) and obtaining a doctorate in biomechanics (Dr. phil.), he worked as a scientist engaged in the analysis, evaluation and modeling of biological movements as well as their transfer to robotics. In parallel, he gained experience in a medical technology startup and worked as a product manager and expert in analysis equipment. Since 2012, Sten Grimmer is part of our team. He focuses on the business models of our customers - always aiming at developing the JustOn software products as simple as flexible.



Marko Fliege is CEO and founder of the JustOn GmbH, a full service billing and invoicing provider with headquarters in Jena, Germany. The graduate industrial engineer (Portsmouth, Jena) has 20 years of experience in developing and marketing software solutions for e-commerce and e-invoicing. In 2010 Marko Fliege founded the JustOn GmbH with the aim of producing an easy-to-use business software that automates and simplifies billing and invoice management processes.


Our happy customers

Our Team

In the last years we have built up a strong international team.


Each of our employees is a part of our success story.


Do you want to become involved, too, and create our future.


Use your chance and join our team.

Careers at JustOn

We trust in our network – Our partners

Technology partners

We integrate our partners’ technologies into our software. This enables us to offer our customers more functionality and better products. In turn, our technology partners integrate our functions and services with their solutions. Mutual integration means improved marketability, increased sales, and happier customers on both sides.

Implementation partners

We work closely with selected implementation partners worldwide. Together with us, they introduce our applications to customers who want to digitize and automate their financial processes. Our expertise in digital billing, invoicing & payments gives our partners the security of successfully implementing their projects.

Network partners

Our network partners can expand their portfolio with our comprehensive consulting expertise in the areas of digitization and automation of financial processes. Inversely, they help us to increase the international visibility and awareness of our software solution.

You want to learn more about our company?

Contact us