Customer ratings
Learn first-hand how companies are successfully using HubSpot by working with Growth Ninjas. Our customers report measurable results, more efficient processes and sustainable growth.
Stefan and his team supported us extremely successfully in the implementation of our CRM setup. The fast, uncomplicated cooperation and the team’s high level of technical expertise are particularly noteworthy. Our specific use case was quickly understood and efficiently mapped in HubSpot.
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From start to finish, working with Growth Ninjas GmbH was a great experience. The CRM implementation, sales & marketing alignment and HubSpot onboarding went smoothly. The team is not only competent, but also very pleasant to work with. An absolute recommendation!
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We have had HubSpot for 5 years now and have only ever used about 30% of it. After I asked HubSpot for help, I came across Growthninjas, and since then I think we’ve been using it to its full potential. Many thanks for the great help and good cooperation!
Best regards Paul Kohlstock
Managing Director of KHTC-Consulting GmbH
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The collaboration with Stefan and the Growth Ninjas was efficient and professional. They really went the extra mile, especially when creating our landing pages in HubSpot. They immediately understood our wishes/requirements and implemented the pages at lightning speed and in great quality. It was immediately apparent that they knew their way around HubSpot and were also familiar with the financial sector. As a result, communication and implementation ran smoothly and we are very satisfied with the new, optimized landing pages. We can therefore recommend the Growth Ninjas unconditionally for all HubSpot topics.
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Our expectations were more than exceeded. Growth Ninjas not only helped us with the migration and implementation, but also took over the on-boarding with our sales and set up and trained us on important functions such as sequences, mailings, templates, etc.. I would recommend them 100% and work with them again and again.
Thank you. RP

The Growth Ninjas team carried out our data migration and onboarding in the shortest possible time in a professional and collegial manner. They responded openly to our special requests and impressed us with very fast response times and suitable solutions. We were and are extremely satisfied!
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The Growth Ninjas team supports us professionally, personally, individually and warmly. We feel that we are in good hands and with their support we can successfully accelerate and professionalize the onboarding of our marketing and sales team. Unreserved recommendation! Many thanks especially to Viktor and Stefan!

We worked with Growth Ninjas to customize HubSpot to our internal structures – and we are very happy with the results. The team supported us with a strategic and well thought out approach that helped us make the most of HubSpot’s capabilities. Throughout the project, they were professional, responsive, flexible and always ready to help. We are very happy with the collaboration and can highly recommend this agency to others looking for reliable HubSpot advice.
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The team has helped us to optimize our CRM tool and take it to a new level. The collaboration is uncomplicated, fast and very professional. They not only supported us with the technical implementation, but also actively thought along with us. A clear recommendation!
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Stefan and his team provided us with sensational support during the implementation of our CRM. With HubSpot, no more leads are lost.
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