Hanna Siebke

Senior Consultant

“Change can be challenging — with the right plan, it becomes an opportunity. Together, we will create structure and clarity for your change.”

CREATING CLARITY

How we work

In today's fast-moving digital landscape, where AI and sustainability are reshaping markets, success hinges on strategic clarity and execution. At 55BirchStreet, we go beyond trends to uncover their real business impact, helping clients implement meaningful change. We align technology, people, and processes to prepare organizations for the future, ensuring they navigate and thrive in the digital era.

We’re highly outcome-focused

Our goal is not just presentations, but sustainably implementing change. Instead of heavy strategy papers, we help you prioritise and structure your vision into actionable plans, tailored to your unique situation to achieve your goals.

We think future first

As a consultancy, we leverage experience across industries, but old methods cannot solve new challenges. We focus on creativity, AI-first thinking, and cutting-edge technology to help you outpace the competition and lead your organisation into the future.

We are your extended super team

We extend your brain and muscle power by immersing ourselves quickly and deeply in your organisation, acting like a supercharged part of your team. At the same time, we challenge the status quo, share our outside perspective, and deliver results efficiently to reduce your pressure.

Shaping the future together

Our Services

At 55BirchStreet, we orchestrate technology, people and processes to ensure you can navigate and thrive now and in the future. We offer strategic sparring, expertise and hands-on implementation power to shape the future of your organisation and drive your future success.

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Latest at 55

Stay up to date as we discuss current topics and trends that impact people, tech and processes. We make complex topics tangible for everyone. Most blog articles are only available in German, but feel free to reach out. Stay curious!

Get in touch

Have a question or want to explore how we could work together?
Reach out to us on LinkedIn — we’d love to hear from you.

Martin Orthen

Coffee’s on you, the rest is on us.

martin.orthen@55birchstreet.com