Irwin is the founder of both the Web-design agency Chromatix and Neon Bright Copywriting, two agencies that focus on improving Web conversions through Web design and copywriting, respectively. Since 2009, he has analyzed more than 60,000 Web sites and amassed more than 80 industry awards and mentions for his agency work. Known as the Website Whisperer, Irwin also manages the Melbourne business coaching and consultancy firm Irwin Hau, an independent practice that specializes in digital transformation and business efficiency for digital solutions.