The onOffice team is always on your side

Beyond just Real Estate Software

onOffice: This is us – get to know us!

Meet Our Management

onOffice remains independent: since its founding in 2001, the company has been entirely owner-managed. Founder and owner Stefan Mantl, along with Managing Directors Marius Siegmund and Janosch Reuschenbach, are committed to realizing their goal of becoming the top choice for real estate companies through their own dedicated endeavors.

We are here to support you, and our commitment remains unwavering!

Stefan Mantl

Owner & CEO

Janosch Reuschenbach

CTO onOffice GmbH

Marius Siegmund

COO onOffice GmbH

Our Essence and Identity

We Embrace Community!

This commitment is evident every day in our team, our partners, and our customers. We champion exchange, cooperation, and open dialogue. With over 300 employees, we work together towards a singular goal: making onOffice a place where people with strong values collaborate and enjoy their work. We listen, share our successes, and work together – as a team and with you!

Real estate agents provide input for the development of onOffice

By Agents, For Agents

From the beginning, we have worked closely with our customers under this motto. Thanks to your feedback, we have become as successful as we are today.

We gladly give back and promise and guarantee you: We are always on your side! As an owner-managed company, it has always been our aim to continuously develop onOffice enterprise in your best interest, strengthen the industry, and drive innovation. Nothing works without you!

Mission: Possible!

Since our founding in 2001, we have followed our credos.

Open and effective communication plays a crucial role, involving attentive listening, acknowledging our efforts, and inspiring one another.
Stagnancy is not in our DNA! We actively seek growth by questioning our assumptions, embracing change, and adjusting to evolving industry developments.
onOffice has been owner-managed from the start – and will remain so. We are independent and always on the side of the real estate industry!
We believe in full transparency, promoting open dialogue, and using challenges as catalysts for growth and advancement.

onOffice expert panel for real estate agents

Working in Unity for Prosperity: Our Joint Endeavors

Who knows the real estate industry best? You do! Whether you’re a real estate agent, property manager, bank, or franchise, you are the expert in real estate. Thanks to your insider knowledge, we ensure that our real estate software always meets the needs of your work life.

That’s why we established the onOffice Expert Panel. Every year, we sit down with you to discuss the developments of onOffice enterprise. This valuable input makes us better!

Meet Our Team: Exploring Our Various Departments

Collaboration fuels our success: Achieving goals as a team!

Sales

Our Sales team knows the needs of a real estate company inside out – after all, we’re in daily communication! We present you with the exact products and services tailored to your workflow.

Customer Success

From the initial setup to daily workarounds: Our Customer Success team manages the entire process with onOffice enterprise. From setup and training to individual adjustments: We are your direct contacts.

Support

You have the questions – we have the answers! Our support team is personally there for you, tracking down all your enquiries. Whether it’s a day-to-day issue, automation, or process design – we find the right solution for every company!

Marketing

The Marketing team is responsible for the company’s overall communication. From the right strategy to the campaign: our diverse team works hand in hand to present our strong products.

Software Development & Operation

In Software Development & Operation, everything comes together: new features, modules, and more are developed here, releases and beta uploads are carried out, bugs are fixed, and the software is continually optimized at its core – including quality control.

Data Migration

Our Data Migration team handles complex data transfers with ease! We ensure the smooth transfer of data from one software to onOffice enterprise. Our experts make sure nothing goes wrong in these processes – your data is sacred!

Infrastructure Customer

Nothing works without a clean IT infrastructure! This includes all components responsible for computing power, networks, data, digital communication, and more. A big task for a strong team – they ensure ongoing performance and customer satisfaction.

IT Workplace Administration

The technical experts for our entire team: They manage local system administration at onOffice and provide our colleagues with hardware and software installations to ensure everyone can work reliably.

IT Technical Support

The specialists for domains, email and IT security: They make sure everything runs smoothly – from A records to spam prevention. Technically skilled, solution-oriented, and close to our clients.

Product Management

Our product managers are the perfect bridge between the real estate industry and onOffice enterprise: through constant exchange, market observation, and software expertise, they identify and plan the products you really need.

Web

We design a web presence for you that reflects your company based on our templates. Our web team is the perfect mix of technical know-how, originality, and media design!

Online Marketing

Reaching new heights: our online marketing team plans and executes digital campaigns for customer websites. Whether it’s classic search engine optimization, SEA, social media management, or creative texts: our team elevates agents to the pinnacle!

Data protection and data security at onOffice

Security & Privacy

Safety first! Data protection and IT security are a given for us. Whether it’s GDPR, AGG, EU law, or the AI Act – we always keep legal requirements in mind and update our regulations regularly.

Business Administration

Whether it’s general enquiries, data maintenance, or organizational concerns about onOffice – the Business Administration team serves as the first point of contact. Here, planning, coordination, and review are done – for efficiency and the right workflow.

Finance & Accounting

Numbers are their world: our Finance & Accounting team handles all tasks related to accounting. Whether it’s invoices, payment receipts, or account checks: smooth organization of finance and accounting is managed here.

Human Resources & Development

Building a Strong Team: Our Human Resource & Development department focuses on attracting new talent, fostering growth and advancement among colleagues, driving organizational progress, and always prioritizing a personal connection.