Kris Gant Appointed as Head of Marketing Effectiveness at Day1data
Day1data names Kris Gant Head of Marketing Effectiveness, adding a marketing science specialist with more than a decade in analytics and senior roles at Ebiquity and PHD.
The Move
- New role
- Head of Marketing Effectiveness
- Company
- Day1data
- Previously
- Principal Consultant, Ebiquity
- Announced
- October 28, 2026
By the Numbers: Day1data
- Years of experience
- 13
- Years at Ebiquity
- 2
- Headcount growth (12 months)
- 10%
- Day1data founded
- 2024
Data: Crustdata, as of October 28, 2026
Day1data has appointed Kris Gant as Head of Marketing Effectiveness, bringing a seasoned marketing science specialist into its London team. Gant has built his career across analytics and consulting, rising from Analytics Executive in 2013 to senior posts that include Marketing Science Director at PHD.
Career Highlights
Gant joins from Ebiquity, where he spent two years as Principal Consultant, according to Crustdata people data. Before that, he served as Marketing Science Director at PHD from 2023.
His career began in 2013 at MediaCom, where he progressed from Analytics Executive to Data Analyst over four years. In 2017 he moved to Data2Decisions, advancing from Digital Consultant to Senior Digital Consultant before reaching Principal Consultant in 2020. Across 13 years, that steady climb has given him a deep grounding in analytics, digital consulting and marketing science.
Why It Matters For Day1data
Day1data helps brands measure incrementality and balance their spending between brand and performance marketing. Founded in 2024 and headquartered in London, the company offers marketing data infrastructure, media mix modelling and incrementality testing, with clients including Twilio, WorldRemit, Resident Advisor and Global Media & Entertainment.
Crustdata company data shows headcount at Day1data has grown 10% over the past 12 months. Bringing in a former Marketing Science Director strengthens a business built around measuring marketing performance.
What's Next
Gant starts in October 2026 and will be based in London, where most of the Day1data team works. As Head of Marketing Effectiveness, he brings a blend of analytics and consulting experience that fits closely with the measurement focus at the heart of the company's offer. Day1data announced the hire on October 28, 2026.
Hiro News tracks leadership moves across go-to-market teams every day. People, company and job data in this story comes from Crustdata.
Questions and Answers
Who is the new Head of Marketing Effectiveness at Day1data?
Kris Gant joined Day1data as Head of Marketing Effectiveness in October 2026. He was most recently Principal Consultant at Ebiquity.
What is Kris Gant's background?
Gant has more than a decade of experience, beginning at MediaCom in 2013. He rose from Digital Consultant to Principal Consultant at Data2Decisions, then served as Marketing Science Director at PHD before joining Ebiquity.
What does Day1data do?
Day1data helps brands measure incrementality and balance spending between brand and performance marketing. Founded in 2024 and headquartered in London, it offers marketing data infrastructure, media mix modelling and incrementality testing.
· people and company records, retrieved October 28, 2026. Source: Crustdata.