What distinguishes Karl Köllner from other insurance brokers?

We combine Hanseatic values with global Aon expertise. As risk consultants, we first understand your business model before recommending insurance solutions. Personal contacts instead of call centers are our standard.

For which companies are we the right partner?

We are the ideal partner for owner-managed companies, cooperatives, and all those who prefer a personal contact for their complex risks. With our specialized areas – Full-Service Broker, Marine Insurance, Crisis, NVK Railway, Cargo Special Solutions and Sports & Entertainment – and the extensive resources of Aon, we accompany you both nationally and internationally and develop individual solutions for your risks.

What specialty insurance do you offer?

Thanks to our deep connections in the insurance market, we can offer you specially developed insurance conditions that benefit you. Especially in our specialized areas, our teams are optimally positioned for your risks.

How does international claims handling work?

We offer 24/7 worldwide claims service with personal contacts. Especially in marine insurance, we guarantee personal support instead of anonymous call centers even in case of claims.

What does 'The Best of Both Worlds' mean?

We combine traditional Hanseatic values such as reliability and personal relationships with the global capacity and expertise of the Aon Group - local proximity with international strength.

Hamburg Speicherstadt - Karl Köllner Insurance Broker

Regional.
Personal.
Hanseatic.

Hanseatic values meet global expertise. Your personal insurance broker with the power of Aon.

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Years of Experience

Countries Worldwide

Specialized Areas

Specialists

Our Specialized Areas

Six highly specialized insurance areas with decades of expertise and personal contacts.

Full-Service Broker

Complete solutions for industrial and commercial clients across all industries. One contact for all insurance lines under one roof.

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Marine Insurance

Worldwide claims service for shipowners, shipyards and maritime service providers in Hamburg and Bremen.

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Crisis

Germany's only independent crisis management team for K&R and product recall.

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NVK Railway

Aon's Railway Experts - Specialized insurance solutions for rail transport.

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Cargo Special Solutions

Complex cross-border solutions for international commodity traders and freight forwarders.

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Sports & Entertainment

Specialized insurance for professional athletes, film/TV industry and event organizers.

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Our Promise

Since 1971, we have adhered to our founder's promise:
"You take care of your business, we take care of your risks."

We therefore stand for:

Hanseatic Commercial Spirit

Reliability and handshake quality since 1971

• Risk consulting instead of product sales
• Fast decisions without bureaucracy
• Focus on owner-managed businesses

Holistic Risk Radar

First analyze, then develop tailored solutions

• Understanding your business model
• Complete risk situation analysis
• Hanseatic honesty in consulting

Deep Industry Knowledge

Decades of specialization in 6 core areas

• Unique market positions
• Industry-specific expertise
• Understanding complex business models

Partnership-Based Collaboration

At eye level with global backing

• Aon network with global capacity
• Direct contacts, short paths
• Long-term business relationships

Our Path to Your Security

Our proven 4-step process for tailored insurance solutions

Identify
(Audit & Analysis)

• Complete assessment of your risk situation
• Understanding your business model
• Identification of hidden risks

Evaluate
(Risk Quantification)

• Prioritization by probability of occurrence
• Evaluation of existing coverage
• Cost-benefit analysis

Secure
(Solution Development)

• Tailored insurance concepts
• Market comparison and negotiation
• Optimization of premiums and conditions

Support
(Monitoring & Claims)

• Continuous monitoring
• Professional claims management
• Regular adjustment of coverage

Historic Hamburg Speicherstadt - Hanseatic Tradition

Hanseatic Tradition for Generations

Over 50 years ago, engineer Karl Köllner founded our company. With technical and professional expertise, he was able to accurately assess the risks of medium-sized businesses, provide sound advice, and offer pragmatic insurance services. Full identification with the client's tasks – a successful model we still follow today.

Our logo with gear and anchor is a symbol of stability and movement – then and now.

But the world has become increasingly complex. To develop the best possible solutions for our now also international clients of all sizes, we have joined Aon – an international consulting and service company. The soul of Karl Köllner remains. We are Karl Köllner!

Since the 1970s, Karl Köllner has been firmly rooted in Hamburg's insurance tradition. Like the historic Speicherstadt, which once housed goods from around the world, we are now a hub for international insurance solutions.

The values of the Hanseatic League – reliability, integrity and foresight – shape our work to this day. As part of the global Aon Group, we combine this centuries-old merchant tradition with state-of-the-art risk expertise.