Isaac Peiris

Hey 👋 I'm Isaac! I’m a growth strategist based in Sydney Australia, and the founder of Pistachio, a growth agency helping marketing teams turn content into a scalable engine for brand, audience, and revenue. I bridge the creative world of brand and content with the technical side of data, systems, and growth. My background spans media, product, and innovation, and I bring those disciplines together to help businesses build trust, grow audiences, and drive real business results. Before launching Pistachio, I led growth at The Daily Aus where I scaled the newsletter to 180,000 subscribers in just 10 months. At Mamamia, I grew their subscription business to over 30,000 paying members and $170,000+ in monthly recurring revenue. Since then, I’ve worked with marketing teams at brands like BuzzFeed and Clay to develop audience-first strategies and build systems that support long-term growth. I also write Brand Chemistry, a newsletter exploring how smart brand thinking can drive compounding growth.