Customer Testimonials

Crescendo Gateway is focused on results and has had the distinct pleasure of helping clients in a variety of industries overcome the issues that slowed and sometimes prevented outright success. Here’s what some of them had to say about us:

OLISERV LIMITED
Great instructors in an awesome environment with 100% exam pass rate for delegates having training and excellent customer service
Ryan Toni
Their auditors are top-notch with vast knowledge and experience of the industry with a high level of professionalism.
Jide Adebayo
This was a very great training. I feel that it related to real-life sales situations, and I will be able to bring my learnings into each professional call.
DEWAYLES INTERNATIONAL LIMITED
They have good Auditors who are subject matter expert in their various field.
HAVIC INT LTD
All in all this training was AMAZING!!! The presenters were amazing. They were engaging, timely, and knowledgeable. I will recommend this course to all sales professionals.
Chris Emeka
I have attended many ISO training programs, and I enjoyed this one the most. Both instructors were very knowledgeable and engaging. I found that the models really work and are of value to me. I will be able to use this in the field to increase my ability to engage my customers and grow my business. Overall, I will be a better communicator.