About Us

Sherlock Taxi is the world’s most advanced and most comprehensive taxi solution.

The Sherlock team is made up of people who have worked in the taxi industry for many years and moved into technology – not the other way around. We think this is really important as it puts us in a unique position as the only provider on the market who really understands your business from an operational perspective. This means that we have custom-built our software in response to genuine needs in the industry. Sherlock Taxi is designed to be flexible, scalable and continuously evolving to keep up with the latest developments and trends in technology.

Our story

Sherlock Taxi was developed by Haulmont Technology which was co-founded in 2008 by our Managing Director, Paul Lacey. Prior to launching Haulmont, Paul worked at Addison Lee as project lead when they revolutionised their taxi dispatch software in the early 2000s. The goal for Addison Lee was to develop a taxi solution which could automate the vast majority of bookings to increase fleet efficiency and enable rapid scalability and growth.
Read Addison Lee case study »

Paul and the Addison Lee team were originally working with another software provider when they realised that actually, there could be a better way to deliver the project goals. Paul and his business partner, Alex Zotkin created Haulmont Technology which is part-owned by Addison Lee. They built Addison Lee’s Shamrock system and the world’s most advanced auto-allocator which can automate up to 100% of jobs. A decade later, Haulmont remains Addison Lee’s exclusive taxi software partner.

In 2011, the team began working on Sherlock Taxi, the sister solution to Addison Lee’s Shamrock system and we now support taxi fleets across the UK, Europe, America, Africa, Asia and the Middle East. Our aim is to create an international community of customers where our clients across different countries work together to offer technology-led, seamless transport services to their customers.

Today, Haulmont Technology employs over 250 staff across our offices in the UK and Russia. In addition to Shamrock and Sherlock Taxi, the team of developers has created Thezis, the CUBA platform and a number of bespoke solutions for individual clients.

Haulmont Technology formed by team who created Addison Lee’s Shamrock system
Haulmont develops Sherlock Taxi solution as sister product to Addison Lee’s Shamrock system

Start-up in Paris, Le Cab, launch with 24 vehicles

Android & iOS apps, web portal and integrated credit card payments all launched with LeCab

Client invoicing and driver wages modules added to Sherlock Taxi


MosTaxi launch with Sherlock Taxi in Moscow

"Quick booker" web booking portal launched

First integration with a telephony provider - Cisco


AlloTaxi in Beirut go live with Sherlock Taxi

Integration with Taxi Butler

Driver app translated into Arabic

CarASAP in Belgium go live with Sherlock Taxi

Sherlock Taxi wins ‘Vertical Market Solution of the Year’ in the ISV category at the European IT & Software Excellence Awards


Africab in Ivory Coast go live with Sherlock Taxi

Sherlock Taxi integrated with third party mobile payment provider

Central Taxis - 500 car fleet in Coventry goes live

LeCab grows to over 2000 vehicles

Sherlock Taxi integrated with Avaya telephony provider

Launch IVR and 100% automated allocation

Sherlock Taxi’s twentieth customer goes live! 

Dedicated development and support team provided to LeCab

Streamline Taxis – 300 car fleet with 650 drivers goes live

New customer booking apps released

Sherlock Taxi integrated with Mobiweb SMS provider

Sherlock Taxi integrated with CBA (credit cards)

Web kiosk booking portal launched


Share my ETA link

Account management portal for account clients to easily manage their accounts

Warning notifications for upcoming driver documents expiring

New reporting and dashboard functionality

Implemented Google Street Map as an alternative to Google routing

New market launches including Sierre Leone, Singapore and New Zealand

175 car fleet in New Zealand goes lives!

Have questions?

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