GA4 & Looker Studio Specialist
I help you connect, clean and structure your data, and transform it into clear visual dashboards that make decisions obvious, so you can see what’s working, what’s not, and what to do next, without second guessing your numbers.
As a GA4 and Looker Studio specialist, I work with agencies, eCommerce and B2B businesses that need reliable tracking, clear reporting, and dashboards they can actually use.
How I can help
I help businesses move from scattered data to clear, decision-ready insights using Google Analytics 4, Looker Studio and BigQuery.
Analytics & tracking
- GA4 and Google Tag Manager implementations (client-side and server-side)
- Data layer design and validation
- Tracking audits and fixes (if your data doesn’t look right, I’ll find why)
Dashboards & reporting
- Looker Studio dashboards designed for real use (not just pretty charts)
- Funnel and conversion analysis
- Marketing performance reporting (Google Ads, Meta, email platforms, etc.)
Data modelling & deeper analysis
- BigQuery setups
- Data validation and reconciliation across platforms
- Turning raw data into structured, reliable datasets
Strategy & support
- Defining what to measure (not just how)
- Translating business questions into data solutions
- Ongoing support for teams and agencies
Who I work with
I typically work with:
- Agencies that need a reliable GA4 and Looker Studio partner for client work
- eCommerce businesses that want to understand performance and optimise revenue
- B2B companies looking to connect sales and marketing efforts with pipeline and results
If you have data but don’t fully trust it, or dashboards that don’t drive decisions, I can help.
Selected work & examples
Here are a couple of examples of how I’ve helped businesses turn data into clear, actionable insights:
- From unclear attribution to lower cost per acquisition (Nu-in, eCommerce)
- Helping an agency turn complex data into client-ready insights (LA Search)
You can also explore more of my approach to dashboards and data here: https://lookercourses.com/blog/
Client feedback
“Barbara helped us turn our data into actionable insights that significantly improved our marketing performance. By refining our customer targeting, we achieved a 30% increase in social media conversions. A clear indication of the impact of her work.
Beyond paid social, we were also able to apply these insights to our email campaigns, targeting customers based on their buying behaviour. This allowed us to create more relevant, effective campaigns and drive stronger overall results.”
Nu-In’s Paid Social & SEO Director
About me
I’m Barbara Mackey, a GA4 consultant and Looker Studio expert with over 20 years of experience in data and marketing analytics.
I’ve worked with 100+ websites and businesses including Net-a-Porter, Zara, Mango and Black & Decker, helping them turn data into something they can actually use.
Alongside my client work, I also teach Looker Studio to thousands of students on Udemy and share practical, hands-on tutorials on this site.
Let’s work together
If you’re looking for a GA4 consultant or Looker Studio expert who can bring clarity to your data and help you make better decisions, I’d love to hear from you.