Fan Cheering


S1SS work large scale events across the UK and are lucky enough to work with some of the best clients and customers in the business. Some of them have been kind enough to share some lovely feedback with us. 

"Absolutely First Class"

"After many years running events and the challenge of finding and working with Security companies to achieve a good job at my events at a fair price, I was blessed to meet the team at Sierra 1, formally Global and finally I have found the company I wish I had met years ago. 

The team managed by Andy and Beth are absolutely first class in how they take on the varied and often problematic roles I need from them. Time keeping is the first compliment to pay them and attention to duty and a can-do attitude, with keen customer service, is what I have come to depend on and appreciate so much. I can honestly say I have not worked with a better team in nearly 30 years in the business and would not hesitate to recommend them to anyone!"


Managing Director

Events Collective Ltd

"These people can always be relied upon"

"We have been working with Andy and his team for over a decade and he is always our first port of call for stewarding and overnight security! Lots of people come and go in the world of stewarding but these people can always be relied upon.”


Managing Director

Yellow Bus Events Ltd

"Great job"

"Your guys are doing a great job at the cricket. Your supervisor has especially excelled managing s1 staff and is a great asset.  They managed a particularly rowdy group last night brilliantly with your SIA team. Please pass my sincere thanks to them"


Safety Officer 

Derbyshire County Cricket Club


"I just wanted to let you know your staff over the weekend where fabulous, they were accommodating and really got stuck in with the busy day we had especially Saturday.

Please extend my thanks to them all"


Head of Operations and Deputy Head of Primary Care at Scale

Primary Care Sheffield 

"Huge thank you"

"Great to meet you both on Saturday and thanks for all your work. Just wanted to say a huge thank you to you and to your teams"


Lead Coordinator (Vaccination)

Covid 19 Response Hub

"Proud to work with you all"

"Words cannot express my thanks, gratitude and awe at how you all managed today; energy levels were nothing but 100%,on one of the most challenges days we have all faced in a long time. 

Your professionalism, flexibility and patience were second to none and you should all be tremendously proud of how you got through today; I’m certainly proud to work with you all!"


Events Manager 

Silverstone Circuit

"Competitively priced, professional and reliable"

"Here at Sheffield University Union of Students we operate an in-house security team, running events, bars and night clubs. Voted as the UK's best student Union for over 10 years running we know the value of service excellence.


So who do I trust when we need to strengthen our team for major events etc, I trust Sierra 1 Security Stewarding. Having worked with Andrew for many years during his time with Global and now with Sierra 1, I know that I can rely on Andy and his team to provide us with competitively priced, professional, friendly and reliable security personnel"



Head of Security

University of Sheffield Union of Students

"Really helpful"

"We have used Sierra Security alongside our in-house stewards now for a number of years for our cricket matches and other commercial event such as large concerts and our annual fireworks night.

They have always been easy to work with and given the nature of events have been really helpful in assisting with changes when needed. Their staff have fitted in well with our in-house team in delivering events and we hope to continue the relationship with larger crowds for later part of 2021, into 2022 and beyond"


Venue Operations Manager

Incora County Ground

"Well trained, honest and hard working"

"Sierra 1 Security Services (S1SS) supply staff for match day roles including car parks, road closures, safety stewards, SIA badge holders for stadium bars, response teams (SIA), Corporate Area (meeters and greeters) and Corporate Area security (SIA), and I have found them to be extremely reliable.

Their staff are well presented and well trained, honest and hardworking which is entirely due to the examples set by their management team.

I am happy to recommend this Company to other organisations, as I am very satisfied with the service of both the management and staff"


Safety Officer

"Helped us deliver exactly what we needed to achieve"

"We use Sierra 1 staff regularly throughout the snooker season and heavily at our World Snooker Championship in April.

The 2021 event was like no other with many additional measures implemented in-line with Covid-19 precautions, the Sierra 1 team really stepped up to the plate and helped us deliver exactly what we needed to achieve.

The entire team were competent and reliable, and with Andy & Karl at the helm, it couldn’t go wrong. Excellent communication all around and all individuals delivered a breadth of skills.
Wouldn't hesitate to recommend them."


Event Director

World Snooker Tour