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Green Vertex Consulting

Transform your business through technology with our help

Why Choose Us?

Substantial industry experience: With years of experience, we have successfully consulted for numerous clients. Our expertise has allowed us to deliver comprehensive solutions to both large corporations and small businesses across a wide range of sectors.

"Green Vertex have our highest recommendation. Their expertise, professionalism, and commitment to excellence make them an invaluable asset to any project"

Alexander Trewby, CEO - Apian


We specialise in consultancy services across the fields of AI, simulation, optimization, automation, robotics, cloud, architecture, software and CTO-as-a-service. Having worked with dozens of clients, we are primed to solve your business problem. We are flexible, and will adapt to best suit your needs.

Types of engagement


Pick our brains, and use our guidance to build the best solution. 


Work with our consultants, who can add specialist knowledge, or just act as an accelerator for your project.


Have our consultants build something for you, according to your needs.


Have our consultants up-skill your staff so that you can become self-sufficient.

Length and Frequency

Flexible from a single hour “pick our brains” engagement to a commitment for long projects in the months / years.

We can work with you full-time, part-time, or on an ad hoc basis.

Working methodology and project scope

We find following an Agile approach delivers better outcomes to our clients. We agree the high level goal up front with you. We then work with you to analyse your business problems to discover the individual requirements. We will iterate on this approach, building the solution incrementally and getting feedback from you continuously. 


This provides considerable flexibility, allowing us to adapt the solution as we better understand the problem. We have learnt from experience that this gives you the best results, and the best value for money. 

Apian automates healthcare deliveries using drones. Their technology allows life saving medicine to be delivered quickly, cheaply and more sustainably. It is a big undertaking, with tens of thousands of sites dispatching medicines and samples in the UK alone. The problem space is complex. The core challenge is optimising drones’ delivery routes, given drone capacity constraints, battery limitations, and weather effects.

Client Case Study

A visualisation of Apian’s drone delivery simulation, created by Green Vertex

Apian's core questions

How many drones would they need?
What is the best control strategy?
How much carbon emission would it save?
How much money would it save?
Enter Green Vertex:

We worked with Apian to understand the challenges they faced. With our experience, it became clear to us which techniques would help solve their problems. We discussed this with them, talking through how a simulation could answer their questions. This led to a project to build a simulation, simulation orchestrator, and visualisation. We took an Agile approach, getting early (and regular) feedback and incorporating it into the solution.

The project continued to iterate, evolving based on our increasing understanding of their problem, and Apian’s increased understanding of what is possible with simulation. While developing the simulation, we taught their staff how to use it as an analytical tool to answer their questions. We also trained their staff in how to alter and extend it, and to use it as an optimisation tool and a test harness. Additionally, we supported their system architecture and recruitment activities.


“We had the pleasure of working with Chris from Green Vertex, and his expertise transformed our understanding of simulation and digital twins. Chris clarified complex concepts, and delivered exceptional results. He created a top-notch simulation, a simulation orchestrator, and a slick visualisation tool that we use for both analysis and marketing. Leveraging his extensive experience, Chris built the sorts of simulation tools for us that other companies have spent years developing with dedicated engineering teams, saving us both time and money.

Beyond his technical contributions, Chris empowered our engineers with simulation skills, allowing them to take ownership of the project going forward. With his guidance, they were able to further enhance the simulation's capabilities. Additionally, Chris supported us in setting up CI and implementing effective cloud architecture.

What truly sets Chris apart is his dedication to our success. He went the extra mile by assisting us in sourcing talented engineers and analysts who could continue building upon his impressive foundation. Chris and Green Vertex have our highest recommendation. Their expertise, professionalism, and commitment to excellence make them an invaluable asset to any project.”

Alexander Trewby, CEO - Apian

Other projects we have worked on

Ocado Technology
ocado technology.webp

Invented and engineered Ocado's swarm robotics based storage and retrieval system ("The Hive"), seeing it through from idea to global roll-out. As well as inventing the processes, this required complex algorithmic optimisation (e.g. multi-vehicle path search). 

Developed Ocado’s simulation capabilities. This facilitated assessment of business opportunities for clients, outputting predicted throughput, optimal configurations, optimal warehouse layouts etc. It also facilitated optimization of the production control system, and testing of that system.

Created the robotics department focusing mainly on picking and packing of customer groceries from stock into bags using robot arms, computer vision and machine learning. Grew this department from scratch to over 100 people. We researched, developed and rolled out to production Ocado’s robotic picking system.

Invented Ocado’s “on grid” picking system, which combines robotic picking with the swarm storage and retrieval system.

Safi (formerly TrueCircle AI)

Built a software system with an AI engine which identifies, classifies, and estimates weight of millions of items moving through recycling centre conveyors per day.

Created the technology strategy responsible for building TrueCircle’s engineering department and practices. This department quickly developed two successful products in parallel. One of these went from project inception to handling live customers in 6 weeks.

Person drawing on whiteboard
Global Travel Brand

Boosted conversion rates on a household-name travel website. The AI engine used many factors to recommend specific travel itineraries to travellers. With an improved user experience, more travellers booked, increasing the conversion rate

Major UK TV Organisation

Advised a large UK TV organisation on how they should build their new cloud-centric computing platform. This increased allowed their engineering teams to take advantage of the latest cloud technologies while improving customer experience.

Global Market Research Company

Provided insight to an international consumer insight company, helping them consolidate multiple datacenters into a single cloud environment. This empowered their development of new products, giving them far greater flexibility.

Chris Brett's face

Chris Brett

Lead Consultant

Previous positions include:

CTO - TrueCircle
Head of Robotics - Ocado
Head of Architecture - Ocado
Simulation Development Manager - Ocado


Meet Chris: Expert Technologist, Inspiring Leader, and Proud Father

With over 20 years of experience, Chris is a seasoned engineer specializing in AI, simulation, optimization, automation, robotics, cloud architecture, software, and hardware. His diverse background includes working with organizations of all sizes, where he excels at using cutting-edge technology to solve real-world problems.

Chris's passion extends beyond technology; he is also a dedicated leader committed to building exceptional engineering organizations. His ability to combine technical expertise with strong leadership skills fosters an environment of innovation and success.

Outside of work, Chris cherishes his role as a father. He finds joy in teaching his children programming, electronics, and hardware engineering, instilling a love for learning and technology from an early age.

Connect with Chris to tap into his expertise and experience firsthand how his unique blend of technical prowess, leadership, and relatability can drive transformative outcomes for your organization.

Get in touch for personalised assistance

Contact us today to discover how our team of experts can help you.

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