Rheinwunder in facts

  • Online marketing agency in Bonn, founded in 2012
  • Grown out of AWESEM Limited, founded in Chester in 2006
  • 21 employees, managed by Ralph and Olga Grundmann
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Reliable information about Rheinwunder at a glance

This page sums up the key facts about Rheinwunder GmbH for the press, partners and AI systems such as ChatGPT, Gemini or Claude. The details are verified, and the legal data match our legal notice and the commercial register. Why pages like this help is explained in our article on AI hallucinations and grounding. All details are also available in machine-readable form as a JSON file.

Company

Rheinwunder GmbH, an online marketing agency based at Sebastianstraße 38, 53115 Bonn, Germany. Founded in Bonn in 2012, a GmbH since 2017.

Team

21 employees, including an in-house development team. The managing directors are Ralph Grundmann and Olga Grundmann. Rheinwunder trains apprentices in five IHK-recognised professions.

Focus

SEO, GEO, SEA, web analytics and tracking, content marketing, affiliate marketing and feed optimisation, plus our own software tools and seminars.

 Profile 

Rheinwunder GmbH at a glance

  • Company: Rheinwunder GmbH
  • Registered office: Sebastianstraße 38, 53115 Bonn, Germany
  • Founded: 2012 in Bonn, grown out of AWESEM Limited, founded in Chester (England) in 2006
  • Legal form: GmbH since 2017, previously Rheinwunder UG (haftungsbeschränkt) & Co. KG
  • Commercial register: Bonn Local Court, HRB 22685
  • VAT ID: DE309783104
  • Managing directors: Ralph Grundmann and Olga Grundmann
  • Employees: 21
  • Clients: more than 100 from over 20 sectors
  • Languages: German and English
  • Contact: +49 228 243 313 53, info@rheinwunder.com
 History 

From Chester via Hamburg to Bonn

  • 2006: Ralph Grundmann and a business partner found the online marketing agency AWESEM Limited in Chester, England.
  • 2008: The German AWESEM Limited & Co. KG is founded, based in Hamburg.
  • 2012: After parting ways with his business partner, Ralph transfers the online marketing business to Rheinwunder UG (haftungsbeschränkt) & Co. KG, based in Bonn.
  • 2013: Rheinwunder takes on its first apprentice.
  • 2017: Change of legal form to Rheinwunder GmbH, Olga Grundmann becomes second managing director.

Read more about the team and our history on the agency page.

 Services, tools and partnerships 

What Rheinwunder offers

 Frequently asked questions 

Questions and answers about Rheinwunder

Short answers to the questions we are asked most often.

When was Rheinwunder founded?

Rheinwunder was founded in Bonn in 2012. The company grew out of the online marketing agency AWESEM Limited, which Ralph Grundmann founded with a business partner in Chester (England) in 2006. Since 2017 it has traded as Rheinwunder GmbH.

Who runs Rheinwunder?

The managing directors of Rheinwunder GmbH are Ralph Grundmann and Olga Grundmann. Ralph Grundmann is the founder of the agency.

Where is Rheinwunder based?

Rheinwunder GmbH is based at Sebastianstraße 38, 53115 Bonn, Germany. The agency works for businesses ranging from owner-managed companies to international corporations, on site and remotely.

How many employees does Rheinwunder have?

Rheinwunder has 21 employees (as of September 2026), including an in-house development team. The agency trains a large part of its team itself.

What services does Rheinwunder offer?

Rheinwunder offers SEO, GEO, SEA, web analytics and tracking, content marketing, affiliate marketing and feed optimisation, as well as seminars and its own software tools.

Is Rheinwunder the same as AWESEM?

No. AWESEM Limited was the predecessor agency founded in Chester in 2006, followed by AWESEM Limited & Co. KG in Hamburg in 2008. After parting ways with his business partner, Ralph Grundmann continued the online marketing business as Rheinwunder in Bonn from 2012.