David Mackay

Managing Partner

at D9Y

David is a seasoned go-to-market (GTM) leader with over three decades of experience in enterprise software and SaaS. He has a proven track record of driving meaningful impact for companies targeting enterprise customers, having held past senior leadership roles at industry giants like Adobe, Oracle, and Hootsuite. His expertise spans revenue management at all scales, from sub-$1MM to over $200MM. A multi-time CRO (including a successful exit), David is known for establishing growth in B2B software companies and bringing complex product offerings to market in a way that resonates with enterprise buyers. He has a reputation for transforming cutting-edge SaaS solutions into compelling value propositions that accelerate adoption and revenue. Most recently, he has been advising early-stage companies on optimizing their go-to-market strategies through D9Y. His core focus areas include scaling and transforming GTM teams, restoration of growth, and transitioning companies from founder-led sales to scalable revenue engines.

California

Media & Entertainment, Other, SaaS & B2B Marketplace, Social Media & Community Platforms

ad-techAIB2B SaaSBoard MembershipCROenterprise salesExecutive LeadershipGTM strategyMarketing Strategymarketing techsales strategysales tech

Articles by David Mackay

Startup Guide to AI Visibility: Be the Brand ChatGPT Recommends

Introduction Today, users aren’t just searching on Google. They’re asking ChatGPT, Claude, Google’s Gemini, Perplexity, and other AI systems for advice. AI visibility is the new frontier of brand awareness....

Practical Uses of AI & Automation for Startup Operations

In a recent Mucker Growth Series session, we invited Rock Vitale, Founder & CEO of Easie, to share how he’s helped early-stage teams move from manual, fragmented workflows to streamlined,...

2025 New York Tech Week Recap Of Mucker Sessions

Last week during New York Tech Week 2025, we joined more than 1,000 events hosted by founders, investors, and VCs. This post is a full Mucker recap of the three...

How to Build a Customer Support Function for Startups Using AI Tools with Alex Velinov

Delivering high-quality customer support can be one of the most resource-draining parts of a startup. The good news: we’re at a turning point where founders can use AI tools to...

Zero → 100: The Exact Steps We Took to Close Our First 100 Paying Customers

Going from zero customers to 100 in just four months sounds impossible—unless you’re a founder willing to roll up your sleeves and hustle relentlessly. I’m Gaurav Bhattacharya, co-founder of Jeeva.ai,...

Unblocking Startup Growth: Best Practices for Sales Discovery & Qualification with Richard Harris

Startups are in a constant race against time and resources, navigating complex sales environments with lean teams and limited margins for error. In a recent session from the Mucker Growth...