Company intelligence
onOffice GmbH
Digitale Lösungen für die Immobilienvermarktung – Software, App, Websites, Online Marketing und mehr
About onOffice GmbH
onOffice – always on your side Gemeinsam für die Immobilienbranche: Unter der Devise arbeitet unser einzigartiges Team von Anfang an eng mit Maklern und Immo-Experten zusammen und verspricht, immer auf ihrer Seite zu sein! Als inhabergeführtes Unternehmen gilt seit 2001 der Anspruch, unseren Mitarbeitenden Freiräume, Verantwortung und Perspektiven zu bieten, um ihre Ideen und Erfahrungen einzubringen. Kurz gesagt: alles zu tun, um die Software onOffice enterprise und weitere Produkte im Sinne der Makler weiterzuentwickeln, die Branche zu stärken und Neues zu bewegen. Und es gibt noch mehr: Die „onOffice WP-Websites”, „onOffice App” und Produkte aus dem Online Marketing runden das Angebot für Immobilienunternehmen ab und bieten weitere Herausforderungen für potentielle Kolleg:innen. Teamgeist wird bei onOffice groß geschrieben: wir arbeiten gemeinsam, bereichsübergreifend, fair und verantwortungsvoll zusammen. Davon profitieren auch unsere Kunden und Partner. Mit über 300 Mitarbeitenden, CEO/Inhaber Stefan Mantl, COO Marius Siegmund und CTO Janosch Reuschenbach arbeitet onOffice tagtäglich daran, Immobilienmaklern, Hausverwaltungen, Netzwerken und mehr die perfekten Lösungen für ein erfolgreiches Business zu bieten. onOffice – always on your side! Angaben gemäß § 5 TMG: onOffice GmbH Charlottenburger Allee 5 52068 Aachen vertreten durch: Geschäftsführer: Stefan Mantl, Janosch Reuschenbach, Marius Siegmund Kontakt: Telefon: +49 (0)241 44686-0 Telefax: +49 (0)241 44686-250 E-Mail: info@onoffice.com Web: www.onoffice.com Registereintrag: Eintragung im Handelsregister Registergericht: Amtsgericht Aachen Registernummer: HRB 21420 Umsatzsteuer-ID: Umsatzsteuer-Identifikationsnummer gemäß §27 a Umsatzsteuergesetz: DE 313720285 Verantwortlich für den Inhalt nach § 55 Abs. 2 RStV: Stefan Mantl, Inhaber der onOffice GmbH Charlottenburger Allee 5 52068 Aachen
Verified activity
Signals from onOffice GmbH
15 published signals
People
onOffice GmbH has completed the graduate studies of Olga Thiel, Julian Enkirch, and Jonas Maffei, who have been trained as a sales manager and application developer respectively.
Reported by onOffice GmbH
Products & Services
onOffice GmbH's onOffice Consulting Team has restructured their workflows with Susanne Wambach to reduce administrative tasks, clarify processes, and allocate more time for immovable property professionals.
Reported by onOffice GmbH
Presence & Recognition
onOffice GmbH participated in the ITCS Conference Köln on September 18, 2026 at the XPOST location in Cologne.
Reported by onOffice GmbH
Products & Services
onOffice GmbH and Freehof Immobilien integrated onOffice enterprise and an onOffice WP-Website to streamline lead generation and CRM processes.
Reported by onOffice GmbH
People
onOffice GmbH employee Holger Lauter resigned from his position in his well-earned retirement.
Reported by onOffice GmbH
People
onOffice GmbH welcomed five new colleagues in the team, including Customer Success Project Manager Svenja Tews, Marketing Manager Caroline Kutsch, Sales Germany CR Manager Melisa Cinakli, Marketing Intern Sara Chiriatti, and Junior Sales Manager Annalisa Bonalumi.
Reported by onOffice GmbH
Products & Services
onOffice GmbH released a new feature in its September release that allows customers to select the recipient of information automatically, whether it's sent to the parent address, subordinate contacts, or all parties involved.
Reported by onOffice GmbH
Products & Services
onOffice GmbH is in beta development of a shooting data tool for firearms indexed on bgun.eu
Reported by Pascal Bonny
Products & Services
onOffice GmbH built bgun.eu to provide structured specifications of 2,700+ firearms, honest ratings from verified shooters, and a growing community of people who actually shoot.
Reported by Pascal Bonny
Products & Services
onOffice GmbH digitized the range logbook on bgun.eu, allowing users to log every session in seconds from any device, keep per-firearm history, and have proof of activity ready for clubs and licenses.
Reported by Pascal Bonny
Products & Services
onOffice GmbH is in beta development of a shooting data tool for firearms indexed on bgun.eu, allowing users to compare models properly before buying and keep session history in a digital range logbook.
Reported by Pascal Bonny
Products & Services
onOffice GmbH digitized the range logbook on bgun.eu, allowing users to log every session in seconds from any device, keep per-firearm history including ammunition, rounds, and results, and have proof of activity ready for clubs and licenses.
Reported by Pascal Bonny
Products & Services
onOffice GmbH built bgun.eu, a platform featuring 2,700+ firearms with structured specs, ratings from verified shooters, a digital range logbook, and a marketplace for verified members launching late 2026.
Reported by Pascal Bonny
People
onOffice GmbH is recruiting founding partners across Germany, France, Italy, Spain, the Netherlands and Portugal for the Armory directory.
Reported by Pascal Bonny
Products & Services
onOffice GmbH announced the onOffice Highlights 2026 featuring new AI functions, the Deals Board, and additional features to simplify workflows in the Immobiliengeschäft.
Reported by onOffice GmbH