We bolt-on to transform digital experiences and grow brands by seeing through the eyes of your customers.
We help new and established brands develop opportunities, solve complex challenges, reimagine their value, and bring those ideas to market.
Expertise
Insights + Validation + New Team/Capability
From customer and market insights to planning what’s next, we show you how to make things better and more thoughtful by seeing through your customer’s eyes.
Expertise
Brand Strategy + CX + UX + IA
We’re a hands-on media buying partner for teams that value continual learning alongside growth. Our full-journey approach turns insights into action at every step of the way.
Expertise
Media Buying + Martech + Lifecycle + Data
Don’t just take our word for it
We act as a fiduciary for the millions of dollars of media and customer experience improvements we manage each year.
Proud partners with
100M+
Since 2018, we’ve helped our clients realize hundreds of millions in incremental revenue.
50%
of our team members have founded and managed their own business before joining Part and Sum.
80%
of our team members have been an early employee at a startup.
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