AeroLeads people directory · profile
Thorsten Keißner Email & Phone Number
Geschäftsführer and Managing Director
at
Onvaris GmbH
LinkedIn matched
✓ Verified Jun 2026
2 data sources
Profile completeness 86%
Current company
Role
Geschäftsführer and Managing Director
Location
Frankfurt Rhine-Main Metropolitan Area, Germany, Germany
Company size
Who is Thorsten Keißner? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Thorsten Keißner is listed as Geschäftsführer and Managing Director at Onvaris GmbH, a company with 15 employees, based in Frankfurt Rhine-Main Metropolitan Area, Germany, Germany. AeroLeads shows a matched LinkedIn profile for Thorsten Keißner.
Thorsten Keißner previously worked as Geschäftsführer / Managing Director at Onvaris Gmbh and Service Development Manager at Unitymedia Gmbh.
Company email context
Email format at Onvaris GmbH
This section adds company-level context without repeating Thorsten Keißner's masked contact details.
Onvaris GmbH
Review company-level records connected to Thorsten Keißner before choosing the right outreach path.
Profile bio
About Thorsten Keißner
Thorsten Keißner is a Geschäftsführer and Managing Director at Onvaris GmbH. He possess expertise in support for cable networks, product development and business development.
Listed skills include Support For Cable Networks and Product Development And Business Development.
Current workplace
Thorsten Keißner's current company
Company context helps verify the profile and gives searchers a useful next step.
Onvaris Gmbh
10 roles
Thorsten Keißner work experience
A career timeline built from the work history available for this profile.
Geschäftsführer / Managing Director
Current=> consulting in cable networks (E)-DOCSIS=> implementation of E3.0 Servies and IPv6 in cable networks=> software- and LAB-verification on different CMTSes=> support on Cisco uBRs, Arris C4/E6000, Motorola BSR, CASA C10G/100G=> (E)DOCSIS cable modem verification and implementation
May 2007 - Present
Service Development Manager
Unitymedia Gmbh
=> implementation of new product and servies within the cable networks=> software- and LAB-verification on different CMTSes=> support on Cisco uBRs, Arris C4, Motorola BSR, CASA C10G=> (E)DOCSIS cable modem verification and implementation
Aug 2006 - Apr 2007
Manager System Engineering
Iesy Hessen Gmbh & Co. Kg
=> responsible for the (E)-DOCSIS and the CORE network=> implementation of new DOCSIS services=> planning, increasing and maintaining the (E)-DOCSIS and the CORE network=> (E)DOCSIS cable modem verification and implementation
Jan 2005 - Jul 2006
Service Development Engineer
Iesy Hessen Gmbh & Co. Kg
=> design, implementation and daily/maintenance support of an access/core network for an internet broadband product (DOCSIS) inside a cable network
Nov 2001 - Dec 2004
Service Development Engineer
Rsl Com Deutschland Gmbh
=> design, implementation and daily/maintenance support of an access/core network for an internet dial up product (internet by call) inside a telco network
Dec 1999 - Oct 2001
Technical Sales Support Engineer
Rsl Com Deutschland Gmbh
=> pre-sales for key account customers, evaluation of customer networks
Jan 1999 - Nov 1999
Field Communications System Engineer
Service Concept Gmbh
=> installation-, support- and troubleshooting of broker communication systems and telco networks
May 1997 - Dec 1998
Communications System Engineer
Tks Gmbh
=> installation-, support- and troubleshooting of different communication systems
Feb 1996 - May 1997
Formation/Education To A Communications System Engineer
Tks Gmbh
=> 3,5 year of training, formation and education to become a Communications System Engineer
Aug 1992 - Apr 1997
Team & coworkers
Colleagues at Onvaris GmbH
Other employees you can reach at onvaris.de. View company contacts for 15 employees →
CW
Christoph Weisbrod
Colleague at Onvaris GmbhRothenburg Ob Der Tauber, Bavaria, Germany, Germany
View →
SC
Stefanie C.
Colleague at Onvaris GmbhGermany, Germany
View →
MF
Michael Funk
Colleague at Onvaris GmbhSchwalmtal, North Rhine-Westphalia, Germany, Germany
View →
OA
Oscar Atikou
Colleague at Onvaris GmbhFrankfurt, Hesse, Germany, Germany
View →
AS
Alex Stürz
Colleague at Onvaris GmbhFrankfurt, Hesse, Germany, Germany
View →
Christoph Weisbrod
Colleague at Onvaris GmbhRothenburg Ob Der Tauber, Bavaria, Germany, Germany
View →
SC
Stefanie C.
Colleague at Onvaris GmbhGermany, Germany
View →
MF
Michael Funk
Colleague at Onvaris GmbhSchwalmtal, North Rhine-Westphalia, Germany, Germany
View →
OA
Oscar Atikou
Colleague at Onvaris GmbhFrankfurt, Hesse, Germany, Germany
View →
AS
Alex Stürz
Colleague at Onvaris GmbhFrankfurt, Hesse, Germany, Germany
View →
FAQ
Frequently asked questions about Thorsten Keißner
Quick answers generated from the profile data available on this page.
What company does Thorsten Keißner work for?
Thorsten Keißner works for Onvaris GmbH.
What is Thorsten Keißner's role at Onvaris GmbH?
Thorsten Keißner is listed as Geschäftsführer and Managing Director at Onvaris GmbH.
Where is Thorsten Keißner based?
Thorsten Keißner is based in Frankfurt Rhine-Main Metropolitan Area, Germany, Germany while working with Onvaris GmbH.
What companies has Thorsten Keißner worked for?
Thorsten Keißner has worked for Onvaris Gmbh, Unitymedia Gmbh, Iesy Hessen Gmbh & Co. Kg, Rsl Com Deutschland Gmbh, and Service Concept Gmbh.
Who are Thorsten Keißner's colleagues at Onvaris GmbH?
Thorsten Keißner's colleagues at Onvaris GmbH include Christoph Weisbrod, Stefanie C., Michael Funk, Oscar Atikou, and Alex Stürz.
How can I contact Thorsten Keißner?
You can use AeroLeads to view verified contact signals for Thorsten Keißner at Onvaris GmbH, including work email, phone, and LinkedIn data when available.
What skills is Thorsten Keißner known for?
Thorsten Keißner is listed with skills including Support For Cable Networks and Product Development And Business Development.
Find 750M verified contacts
Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.
Start free trialPeople with similar names
Check these profiles if this is not the Thorsten Keißner you were looking for.
View similar profiles