"Was able to work on several tasks in parallel without losing sight of his overall area of responsibility."
About · Contigo Consulting
Interim responsibility for IT service management.
Contigo Consulting is an IT service management consultancy based in Friedrichsdorf, founded in 2019. We build structures that survive daily operations, and check beforehand how much of the existing structure actually holds.
Discuss your challengeContact
Your first point of contact is Carsten Streit.
Whoever comes to us with an IT concern talks to him first. He assesses the situation, represents Contigo in the market and can be reached directly, with no agency in between.
Where the work happens is decided by the engagement. On site for a week or for longer, in Munich as readily as in Hamburg, and with a move where an engagement calls for it. We change how people work, and that is settled in the room next door rather than on a video call.
- Self-employed
- 1997
- until 2019
- Contigo Consulting
- 2019
- employed since
- Industries
- 11
- energy to metalworking
- Years in service management
- 10+
- technology before that
Carsten Streit Background and credentials
He does not know IT from management alone.
- As a trainer
- In administration
- In development
- In project management
Service management
More than ten years, to this day.
Experience changes what you look at first.
He can judge whether a commitment in a contract can be met technically at all.
- Not first
- Which tool do we need?
- First
- What actually holds here?
Roles in service management
Ten roles, three phases: from delivering to being accountable.
Steering operations
2015–2019
Delivering services, steering an outsourcing, supporting on site.
2015–2017
Divisional Service Manager
SLA management and harmonisation of international IT processes
2017
Provider Manager Workplace Management
Steering an IT outsourcing, transition and change
2017
Service Delivery Manager Network
WAN and LAN services, capacity and lifecycle management
2018–2019
Service Delivery Manager
Network, unified communications and remote access after a carve-out
2019
Regional Field Service Manager EMEAR
Onsite support, structured reporting, BPMN documentation
Structuring globally
2020–2021
Global processes, global provider steering, one service desk around the clock.
2020–2021
Global Manager Group IT 24/7 Services
Global service desk and onsite support, provider steering
2021
Process Manager Global IT
Global IT processes from incident to knowledge management
Taking accountability and building
2021–2026
First check what holds, then take accountability: for seven services, then for an entire organisation.
2021
Service Management Lead
Assessment of existing processes and tooling
2022–2023
IT Service Owner
Seven business-critical application services
2024–2025
ITIL Lead
Building an IT organisation during a carve-out
2026
Restructuring and optimisation of an online shop
Online shop
Core competencies
Six fields his engagements revolve around. The full register of all 23 is below.
- ITIL Master (Version 5) / ITIL 4 Master / ITIL Expert
- Service Ownership Models
- Provider Management
- SIAM
- Target Operating Model (TOM)
- Service Transition and Transformation
The full register · 23
Service management
- ITIL Master (Version 5) / ITIL 4 Master / ITIL Expert
- Service Delivery Management
- Service Operations Management
- Process Management
- Change Enablement
- Knowledge Management
- Escalation Management
- SLA Management
- IT Service Integration
- SIAM
Operating model and governance
- Target Operating Model (TOM)
- Operating Model Design
- Operating Governance Frameworks
- IT Governance
- Technical Governance
- Service Ownership Models
- RACI and role modelling
Steering and change
- Provider Management
- Organizational Change Management
- Service Transition and Transformation
- Reporting and KPI steering
- Project management
- BPMN 2.0 process modelling
Tools he has worked with
The tools are interchangeable. What decides is whether the procedure holds.
Service management tools
- ServiceNow
- Jira
- Confluence
- Remedy
- Topdesk
- CA Service Desk
- BMC Service Desk Express
- HelpLine
- SAP CRM
9 more tools in 2 groups
Infrastructure and operations
- Active Directory
- Cisco
- Citrix
- VMware
- WSUS
- McAfee EPO
Modelling and planning
- BPMN 2.0
- Visio
- MS Project
Voices from outside
How others describe working with him.
"He brings structure without making things more complicated than they need to be."
From the recommendation
"We worked together over a longer period on a demanding IT transformation project, with everything that comes with it: technical complexity, organisational friction, and the constant balancing act between strategic direction and operational pressure.
"Carsten navigated that like someone who knows exactly where he stands. […] He brings structure without making things more complicated than they need to be. And he builds bridges between technology and business in a way that is not a given."
Frank Eck
Project colleague from a shared transformation projectCalm under pressure
„Mr Streit keeps an overview and his decisiveness even in difficult situations.“
Read onShow less
Full text of the reference letter, translated from German. Company names and locations anonymised; personal addresses and signature omitted.
"I became acquainted with Mr Streit during his project assignment through [the recruitment agency], as part of the migration of the sales division’s IT infrastructure [between several locations].
"He supported the IT staff of [the life insurance company] with all tasks arising during an extensive migration of the IT and telephone infrastructure. These included software, hardware and user issues, and administering Active Directory for newly created users and their hardware.
"My staff and I greatly value Mr Streit’s technical expertise. From the outset, it enabled him to carry out his tasks with a very high degree of personal responsibility.
"Mr Streit has excellent knowledge of supporting and maintaining operating systems, network administration and application software.
"Mr Streit keeps an overview and his decisiveness even in difficult situations. He performed his tasks with the greatest care and attention. Mr Streit shows very strong personal commitment and grasps new matters very quickly.
"When problems arise, he responds promptly to enquiries. He advises my staff and me competently, quickly identifies the problem when asked, and offers flexible solutions. He always explains his proposed solutions clearly. Difficulties can therefore be resolved quickly and completely, to the considerable satisfaction of everyone involved.
"His strong service orientation made him a popular and frequently consulted contact for my staff and me.
"Mr Streit’s assignment ends with the successful completion of the IT migration project. I would gladly engage him again for similar projects if needed.
"In recognition of his excellent work, I am pleased to provide the recommendation letter Mr Streit requested. I am always willing to answer questions about him. My contact details can be found on the letterhead."
Thomas Bahr
Chief executive in the insurance sector at the timeFour older letters from the support and project years
From the support and project years, not from the present role. They belong to Carsten Streit, and the clients have not agreed to publication. Condensed and without names.
"Carsten performed competently in his role and was able to deal with most issues immediately despite a very short handover period from the previous incumbent."
"Always ready to take on full responsibility."
"Process implementation between several external providers, coordination of server migrations and network rebuilds."
Certificates and credentials
Three ITIL schemes, three times through to the top title. ITIL Master in version 5 since the end of August 2026, before that ITIL 4 Master and ITIL Expert from the v3 scheme. Together 9 titles that may be held, and the certificates behind them.
Every title and every individual certificate is shown here with its issue date and certificate number.
ITIL Version 5
ITIL Practice Manager (Version 5)
PeopleCert · August 2026, valid until August 2029 · GR456000374CS
ITIL Managing Professional (Version 5)
PeopleCert · August 2026, valid until August 2029 · GR457000434CS
ITIL Strategic Leader (Version 5)
PeopleCert · August 2026, valid until August 2029 · GR458000446CS
ITIL Master (Version 5)
PeopleCert · August 2026, valid until August 2029 · GR459000307CS
- Individual certificates
- ITIL Managing Professional Transition – Product, Service, Experience (Version 5)August 2026, valid until August 2029 · GR669000263CS
- ITIL Transformation (Version 5)August 2026, valid until August 2029 · GR437000739CS
ITIL 4
- Create, Deliver and Support
- Drive Stakeholder Value
- High Velocity IT
- Direct, Plan and Improve
ITIL 4 Managing Professional
PeopleCert · July 2025, valid until August 2028 · GR677019170CS
- Direct, Plan and Improve
- Digital and IT Strategy
ITIL 4 Strategic Leader
PeopleCert · August 2025, valid until August 2028 · GR670006302CS
ITIL 4 Practice Manager
PeopleCert · September 2025, valid until September 2028 · GR682002515CS
- Managing Professional
- Strategic Leader
ITIL 4 Master
PeopleCert · September 2025, valid until September 2028 · GR683001734CS
- Individual certificates
- ITIL 4 FoundationApril 2025, valid until April 2028 · GR671768842CS
- ITIL 4 Specialist: Create, Deliver and SupportJune 2025, valid until June 2028 · GR672016651CS
- ITIL 4 Strategist: Direct, Plan and ImproveJune 2025, valid until June 2028 · GR678013074CS
- ITIL 4 Specialist: Drive Stakeholder ValueJuly 2025, valid until July 2028 · GR673007235CS
- ITIL 4 Specialist: High-Velocity ITAugust 2025, valid until August 2028 · GR674006223CS
- ITIL 4 Leader: Digital and IT StrategyAugust 2025, valid until August 2028 · GR679007445CS
- ITIL 4 Specialist: Monitor, Support and FulfilSeptember 2025, valid until September 2028 · GR465002424CS
ITIL v3
- Foundation
- Practitioner
- Service Strategy
- Service Design
- Service Transition
- Service Operation
- Continual Service Improvement
- Managing Across the Lifecycle
ITIL Expert in IT Service Management
AXELOS / PeopleCert · May 2019, no expiry date · GR761010438CS
The numbers are not there to be looked at. The issuer runs a public verification service: enter the number, confirm the image code, get the result. Verify a certificate at PeopleCert, in a new tab.
Next step
Does this fit your situation?
How we go about it in concrete terms is under Expertise and Approach. If you would rather talk directly, that works too.
Or the direct way