I’m Mark, a data expert based in Leeds. I specialise in

  • data analysis
  • data visualisation
  • data dashboard creation

I love what I do, and I love working with clients to help them get the most value out of their data.

I’m currently available to hire!

Data Dashboards

Dashboards help users understand with a lot of different data at the same time. I create interactive dashboards then enable not only interactive visualisations across topics, but also enables users to drill down to find their own insights. I usually use Tableau or Microsoft Power BI, but am also comfortable with lots of other systems.

Data videos

The Born in Bradford team wanted to transform their data into something engaging to introduce people to their ground breaking study. I was provided with a sample of data, and created a minute long video to explain how many people are involved, the areas where they live, and breakdowns for the the participants age and ethnicity.

The content was designed to be used as an introduction to presentations, and sharing on social media channels to increase awareness of the work.

Interactive visualisations

I used almost 1 billion rows of data investigate respiratory conditions for an NHS project. I selected prescription data from the BNF codes that relate to respiratory conditions (Beclometasone, Dipropionate, Budesonide, Ciclesonide, Fluticasone Propionate (Inh), and Mometasone Furoate). To process the data used Amazon Web Services to run my algorithm.

Animated data

Rather than “where are cycle paths, and recreational areas”, I mined GPS data to find where people actually walked, ran, or cycled within the city. Having identified 30,000 individual routes, I decided to focus on tracks that were between 5km and 10km in length, taking a random sample of 1,000 tracks for this visualisation. Each line on the video is a route that a person has taken.

Cities can now see where people are actually exercising to help with city planning, and where to add more cycle lanes.

About me

Data flock was built from a love of digging into real world big data to produce insights, and then seeing these insights help organisations learn, grow and change. Working with big data (small and medium data too!) patterns, trends, predictions, forecasts, and everything in-between can be produced.
I have always been interested in getting the most value out of data, and using it to tell interesting stories that everyone can engage with.
My work has seen me recognised as one of the top 50 Innovators in Healthcare by the Health Service Journal, selected as one of the Top 50 “New Radicals” by Nesta / The Guardian, and created one of the Sunday Times top 500 apps in the world, reaching #1 in the iTunes chart.

I work on one-off projects, short term contracts, longer ongoing relationships, and collaborations.


I work with organisations large and small. Here are a few of my most recent clients:

Get in touch

Call me:

07941 021 583

Post address

5 Carrwood Park,
Selby Road,
LS15 4LG

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