Added the testimonial provided by the Visma Red Team

Co-authored-by: joohoi <[email protected]>
Co-authored-by: six2dez <[email protected]>

README.md

@@ -109,6 +109,14 @@ For a list of all contributors to the OWASP Amass Project please visit our [HALL
 
 \- Max Deighton, Accenture Cyber Defense Manager
 
+### [![Visma Logo](./images/visma_logo.png) Visma](https://www.visma.com/)
+
+*"For an internal red team, the organisational structure of Visma puts us against a unique challenge. Having sufficient, continuous visibility over our external attack surface is an integral part of being able to efficiently carry out our task. When dealing with hundreds of companies with different products and supporting infrastructure we need to always be on top of our game.*
+
+*For years, OWASP Amass has been a staple in the asset reconnaissance field, and keeps proving its worth time after time. The tool keeps constantly evolving and improving to adapt to the new trends in this area."*
+
+\- Joona Hoikkala (@joohoi) & Alexis Fernández (@six2dez), Visma Red Team
+
 ## References [![Bugcrowd LevelUp 0x04](https://img.shields.io/badge/bugcrowd-levelup%200x04-orange.svg)](https://www.youtube.com/watch?v=C-GabM2db9A) [![DEF CON 27 Demo Labs](https://img.shields.io/badge/defcon%2027-demo%20labs-purple.svg)](https://www.defcon.org/html/defcon-27/dc-27-demolabs.html) [![DEF CON 27 Recon Village](https://img.shields.io/badge/defcon%2027-recon%20village-lightgrey.svg)](https://reconvillage.org/) [![DEF CON 28 Red Team Village](https://img.shields.io/badge/defcon%2028-red%20team%20village-red.svg)](https://www.youtube.com/c/RedTeamVillage/featured) [![Bugcrowd LevelUp 0x07](https://img.shields.io/badge/bugcrowd-levelup%200x07-orange.svg)](https://www.twitch.tv/videos/723418873) [![Grayhat 2020](https://img.shields.io/badge/grayhat%202020-bootcamp-lightgrey.svg)](https://www.youtube.com/watch?v=J33JmuQ79tE) [![BeNeLux 2020](https://img.shields.io/badge/owasp%202020-benelux%20days-blue.svg)](https://www.youtube.com/watch?v=fDlKQXRaGl0) [![BSides København 2020](https://img.shields.io/badge/bsides%202020-københavn-red.svg)](https://vimeo.com/481985359) [![ESW 2021](https://img.shields.io/badge/security%20weekly-esw%20219-blue.svg)](https://www.youtube.com/watch?v=fDlKQXRaGl0)
 
 Did you write a blog post, magazine article or do a podcast about OWASP Amass? Or maybe you held or joined a conference talk or meetup session, a hacking workshop or public training where this project was mentioned?