01
15+
Years across analytics, measurement, audience strategy and data products.
Executive Profile / Analytics & Measurement
James Henry Olney
Analytics, measurement, connected identity and growth strategy leader. 15+ years building high-performing analytics organisations, evidence-led measurement systems and audience data products that turn insight into commercial outcomes.
Currently
Head of Growth Analytics
Omnicom · UK & EMEA Hub
Availability
Immediate
Based in London, UK
Fig. 01 · Portrait
London, 2026
Executive Thesis
Build analytics as a growth engine — connect evidence agendas, audience strategy and connected identity to acquisition, retention, profit, LTV and brand measurement so leadership teams make faster, higher-confidence commercial decisions.
01 / LDN
Analytics · Measurement · Connected Identity · Growth Strategy
↓ Read the profile
§01
Executive
Summary
What matters most
02
Multi-
Market
Leadership across UK, EMEA and global analytics programmes.
03
3 → 20+
EMEA analytics function scaled and embedded in core delivery.
04
£7m+
Connected audience programme scaled through measured value.
05
Evidence
Ad spend linked to acquisition, retention, profit, LTV and brand outcomes.
06
Products
Brand Pulse, investment optimisation, dashboards and reusable measurement systems.
§02
Current
Mandate
Live Role
Role
Head of Growth Analytics
Omnicom · UK & EMEA Hub
Dec 2025 — Present
- 01Leading the transition of Growth Analytics capabilities into Omnicom's UK and EMEA structure following the IPG acquisition.
- 02Supporting post-merger integration through operating-model discovery, capability mapping and process alignment.
- 03Working to embed Acxiom-derived audience advantages into Omni, including AI audience research, synthetic research, audience planning and connected activation.
- 04Leading analytics contributions to new-business opportunities with strong measurement, effectiveness and identity-led growth propositions.
- 05Co-developing frameworks that link brand, performance, audience value and commercial outcomes.
- 06Partnering with senior agency and marketing leadership teams to raise analytics maturity across data, measurement, identity and decisioning.
§03
Selected
Track Record
2015 — 2026
-
Period
Apr 2025 — Dec 2025
Head of Analytics, UK & EMEA Hub
IPG · UK & EMEA Hub
Led UK and EMEA analytics across local, regional and global accounts; owned P&L, resourcing and operating model; ran analytics-owned Acxiom capability and Audience Sciences; connected Acxiom, Interact, panel data and other sources for audience insight, activation and incrementality measurement.
-
Period
Oct 2021 — Mar 2025
Head of Data & Analytics
Mediahub EMEA
Scaled the function from 3 to 20+, established analytics as a material agency growth driver, and built Brand Pulse, evidence agendas, investment optimisation, always-on measurement and effectiveness research frameworks.
-
Period
Oct 2018 — Oct 2021
Head of Data & Analytics
The Specialist Works
Built and scaled the agency data capability, developed regional incrementality, media-mix testing, TV attribution and marketing-intelligence solutions, and explored identity-led audience products using Lotame and in-house datasets.
-
Period
Mar 2015 — Oct 2018
Data Strategy Director
Havas Media Group
Led connected audience and personalisation strategy for a major UK telecoms client, using Adobe Audience Manager, FlashTalking and bespoke audience models; guided GDPR/ePrivacy change and built measurement and activation roadmaps.
-
Period
Early Career
Analytics, Search & Marketing Science
Agency & client-side
Built foundational expertise in analytics implementation, experimentation, performance strategy and KPI reporting across agency and client-side environments.
§04
Capabilities
that drive outcomes
Execution Scope
01
Measurement System Design
Joined-up frameworks across brand, performance and commercial KPIs: always-on measurement, incrementality, attribution and decision cadence.
02
Evidence Agendas & Effectiveness
Research and effectiveness studies that evidence spend against acquisition, retention, profit, LTV and brand outcomes.
03
Connected Identity & 1PD Value
Roadmaps that connect first-party data, partner datasets, consented identity, activation and measurement into scalable marketing capability.
04
Audience Science & Activation
Audience modelling, segmentation, value prediction, personalisation logic and connected activation across media and marketing platforms.
05
Data Products & Dashboards
Reusable products: Brand Pulse, investment optimisation, TV attribution, live BI, API feeds and centralised intelligence workflows.
06
Operating Model, Adoption & Governance
COE structures, ways of working, upskilling, vendor co-ordination, privacy-aware governance and adoption plans that scale impact.
§05
Selected Sector
Experience
Representative Coverage
-
01
Retail &
Ecommerce -
02
Consumer
Goods -
03
Financial
Services -
04
Telecoms
-
05
Sportswear
-
06
Travel
-
07
Entertainment
& Streaming -
08
Subscription
Health-Tech
Plus adjacent categories across mobility, automotive and other growth markets.
§06
Open to
strategic
conversations.
If you are looking to strengthen growth strategy through analytics leadership, connected identity, operating-model design or measurement transformation, I am happy to discuss scope and fit.
