Supporting Society, Enabling Compliance, Driving Value

Marston Holdings is committed to inclusive, ethical policies and processes that comprise social, environmental and economic elements. We contribute to the long-term wellbeing of people, communities and society as a whole.

We began enforcing court orders almost 40 years ago. Since then, we have grown organically and through acquisition to provide a multitude of end-to-end services that support the implementation of public policy.

We now recover over £850m each year on behalf of the taxpayer, as well as serving private and commercial clients.

The Marston Holdings group of companies includes:

Solutions

• CCTV
• Enforcement
• Parking Management
• Smart City Solutions
• Urban Mobility

NSL+: Complete End-to-End Private Parking Management Solutions

Managing private land parking comes with challenges—compliance, enforcement transparency, and operational efficiency. NSL+ is designed to address these issues with a smarter, ethical, and revenue-positive approach for property owners and businesses.

Why Choose NSL+?

NSL+ combines expertise, technology, and nationwide infrastructure to deliver a complete parking management solution:

• Nationwide Infrastructure – Leveraging NSL’s trusted network for rapid deployment across the UK.
• Advanced Compliance Expertise – Ensuring full regulatory adherence and ethical enforcement practices.
• Integrated Enforcement & Data Analytics – Smarter, technology-driven solutions in one seamless package.
• Comprehensive End-to-End Service – From installation and signage through to enforcement, recovery, and performance reporting, NSL+ provides a complete lifecycle solution for private parking operators.

This end-to-end model sets a new benchmark for private parking, helping operators boost revenue, streamline operations, and improve visitor experience—all while maintaining fairness and transparency.

Key Benefits for Property Owners

• Secure, Ethical Enforcement
  Industry-leading expertise for compliance and transparent enforcement practices
• Boost Revenue & Streamline Operations
  Optimised enforcement and data-driven insights for smarter decisions.
• Seamless Parking, Happier Visitors
  Frictionless parking, clear signage, and user-friendly payment options.

A Complete Parking Management Solution

NSL+ combines operational excellence with the strength of Marston Holdings to deliver:

• Compliance & Enforcement Leadership – Backed by decades of proven experience.
• Nationwide Reach – Rapid deployment using existing infrastructure.
• Integrated Solutions – Parking management, enforcement, and analytics in one package.
• Operational Cost Savings – Outsourcing reduces expenses in recruitment, training, and IT.

Vortex
Smart City Solutions

Vortex is the UK’s leading provider of smart city solutions.

We provide environmental sensors, networks and data solutions to support decarbonisation efforts globally. We drive real environmental change by leveraging the power of real-time data with cleantech technologies.

As experts in the latest IoT, AI, 5G, and LiDAR technologies, Vortex enables smart cities and smart infrastructures to become more efficient, safer and greener.

Monitor what matters; Act where it counts. – Vortex’s sensor technology maximises visibility and delivers the actionable data that our clients need to start making smarter decisions.

Our solutions:

• Smart parking systems
• Remote infrastructure management
• Continuous urban scanning
• Air quality monitoring
• Industrial pollution monitoring
• Pollution reduction schemes

VidAlert
Intelligent traffic enforcement and management solutions

VidAlert is the UK’s leading supplier of intelligent traffic enforcement and management solutions that deliver the highest productivity at the lowest operational cost.

We offer a comprehensive suite of CCTV traffic and parking management solutions comprising attended, unattended and mobile using the same intelligent digital video platform. Fully DfT certified, the platform delivers higher levels of future proofing as it supports multiple applications simultaneously using the same infrastructure.

Our solutions:

• Moving traffic
• Air quality
• School and Neighbourhood Streets
• VidAlert Mobile Enforcement
• Traffic and parking management
• Police ANPR
• Digital video

ParkTrade
Domestic and international road charging, tolling and parking solutions

ParkTrade Europe AB is an international service and technology provider. We have over 15 years of experience in developing and operating identification and notification services, international customer support, back-office PCN systems and payment solutions.

Our clients operate in the public and private sectors across European jurisdictions.

We offer:

• Electronic toll and road charging solutions for the operation and management of ANPR based free-flow systems.
• Clean air and low emission zone solutions for governments, cities and local authorities that handle notifications, enforcement, registrations, payments and schemes along with back-office services.
• Assistance for European companies and government authorities with the management, support services and collection of parking and traffic-related charges and fines.

ParkTrade solutions and technologies are flexible, scalable and built using modern technologies. Operators and scheme owners can either be provided with turnkey solutions or they can self-manage parts of the service.