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.

14. December 2025

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.

P. Tolloy
Tolloy, P.
AQUISO Sales Solutions GmbH
Industry: B2B lead generation
Aquiso Sales Solutions
11. December 2025

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!

M. Ritter
Ritter, M.
Team Styria Werkstätten GmbH
Industry: Integrative production operation
Team Styria Logo
13. November 2025

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

Services offered

Kohlstock
Kohlstock, P.
KHTC Consulting
Industry: Telco consulting
KHTC Consulting Logo
29. October 2025

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.

Services offered

Classen
Classen, C.
onvista media GmbH
Industry: Finance portal
Onvista Logo
20. October 2025

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

Default User
Przibylla, R.
Maverix Securities AG
Industry: Financial service provider
Maverix Logo
1. October 2025

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!

Sommerhuber
Sommerhuber, R.
XARION Laser Acoustics GmbH
Industry: Deep-Tech Acoustics
Xarion Logo
22. May 2025

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.

Services offered

Stephan
Stephan, C.
QPLIX GmbH
Industry: Financial IT service provider
QPLIX Logo
15. May 2025

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!

Services offered

Fischer
Fischer, L.
21Shares AG
Industry: Financial service provider
21Shares Logo
25. April 2025

Stefan and his team provided us with sensational support during the implementation of our CRM. With HubSpot, no more leads are lost.

Services offered

Nothdurft
Nothdurft, T.
money:care GmbH
Industry: Financial data service provider
Moneycare Logo
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