Build the right thing.
A research-led strategy studio for high-impact digital products.
How can we help you drive value?
Build something new
We’re making something new and want to begin the road to product-market fit.
Refine an existing product
We have something in market and need to either re-invent it or capture more value.
Upskill a team
Our team could provide more value through additional support.
Just looking around? Check out our tailored services
“Z+CO is the gold standard for user research. Every client has been blown away by their expertise and invaluable insights. ”
— Melissa Perri, CEO Product Institute & Author of Escaping the Build Trap, and Product Operations
Why We’re Different
We bring the speed and discipline of startups together with the depth and context of enterprise experience.
We move quickly, ruthlessly optimizing for time to value.
We understand lean product development — but also the challenges of older, larger companies and the necessary transitions.
We are designers and technologists at heart with two decades of hands-on experience creating solutions with business outcomes - not just strategists who build decks.
We adapt to your needs, your timeline, your process.
We care about your business and your outcomes. We’ll work with you to clarify your thinking, define your goals, and chart the most efficient path to reach them.
Our Experience
We’ve worked with clients from early & growth-stage start-ups to large enterprises.
Contact us for a walkthrough of specific case studies.
About Z+CO
Michelle Zassenhaus, Founder
Michelle Zassenhaus is a strategy and research leader who helps product teams build the right thing—faster and with less risk.
She founded Z+CO to bring lean, insight-driven strategy to companies navigating product launches, re-platforming, and innovation initiatives.
Michelle has led strategy practices at firms like Deloitte Digital and Giant Machines, and has partnered with teams at PayPal, Vanguard, Gap, Glossier, and Walmart to turn insight into clear, actionable direction.
At Z+CO, she combines decades of hands-on product experience with a pragmatic, high-velocity approach to help teams align, validate, and move forward with confidence.
Z+CO also has a partnership with Space and Flow, a trusted product development studio, to bring in high-caliber teams for rapid prototyping, side-bet development, and platform modernization.