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The Big Sustainability Expo & Awards 2025

  • 9th October 2025
  • Hilton Southampton Utilita Bowl
  • Expo 10.00 am to 3.30 pm . Networking /Awards 4.30 pm

WELCOME TO THE 10TH ANNIVERSARY EVENT!

What to expect from one of the longest running B2B events dedicated to the reduction of the environmental impact of our organisations? Firstly, a most comprehensive lineup in sustainability, with up to 100 exhibition stands, a hot topic speaker theatre, EV showcase and a dedicated expo magazine.

Network with like-minded professionals and experts. With the added benefit of free registration, good public transport networks and free parking. Over ten years the Expo has opened its doors to the countries most influential corporations, leading experts, dynamic SMEs, non-profits, charity and public sector. Making us responsible for the implementation of countless successful carbon reduction projects.

Brought to you by The Southern Sustainability Partnership, Ambassador Barratt Redrow Homes and Partner Utilita Energy. 

Register
Exhibitors

What To Expect

Free Entry & Parking

Accessible for all to join and learn about sustainability advancements.

Up to 100 Exhibitors

Over 100 stands showcasing the latest in sustainability products, tech and services.

Speaker Theatre

Engaging talks from industry leaders on cutting-edge sustainability topics.

Expo Magazine

Magazine published by eco print sponsor STANBURY CHAMELEON + Digital format

Case Study Gallery

Real-world examples of successful sustainability projects.

Meetings & Networking

Connect with like-minded professionals. YOU NEVER KNOW WHO YOU'LL MEET!

EV Showcase

Speak to the experts, ask your questions and explore the latest in clean transport solutions.

2025 Awards

Join the 10th Anniversary Networking Reception & Big Sustainability Awards...From 4.30 pm £35.00

Networking Reception

Book to join our 10th Anniversary Networking reception as doors close on 2025 Expo. Tickets £35.00

Thank you to our 2025 Expo Ambassador

Utilita Energy 

Your 2025 Expo Partner

UK’s number one ‘Pay As You Go’ energy supplier.  

Responsible for the installation of over 1000 Solar Panels at the Utilita Bowl.

Register Today

Whether you’re looking to showcase your sustainable solutions or find inspiration for your next green project, this is your opportunity to be part of a community driving real change.

Secure your spot now and join us in shaping a sustainable future. Don’t miss out—register today for free entry.

Register

Explore More

2025 Exhibitors

Explore the range of exhibitors who will join us for the 10th Sustainability Expo.
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2025 Speakers

Gain insights from experts in sustainability, sharing knowledge.
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Travel & Venue

Find essential travel information and venue access, ensuring a seamless visit.
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The Southern Sustainability Partnership offers my business a well-rounded calendar of events. We exhibit at the Expo each year to raise awareness for our solutions, which has proved extremely successful. As MD, I have taken time to work on the business by attending the conference. This has helped me understand the way we run our own organisation fits perfectly into a Circular Economy model as we design our own waste compaction systems, build them on-site and offer maintenance and equipment return system. We were delighted to be honoured with the Waste and Recycling Solution Award last year.
★★★★★
★★★★★Managing Director
I’m a huge supporter of The Southern Sustainability Partnership and its Big Sustainability Expo. We must all contribute to seeking a greener and more sustainable way of life. Businesses, both big and small, have a key role to play in this and in order to meet their full potential, I would urge them to work in partnership with The Southern Sustainability Partnership and, also, to attend the expo.
★★★★★
★★★★★Presenter
The Southern Sustainability Partnership has been a great help to us by introducing us not only to new customers but also into a network of like-minded professionals. We have made several new business contacts which have enabled us to broaden our knowledge of the industry and to refer them on to our customers.
★★★★★
★★★★★Managing Director
The Southern Sustainability Partnership enables organisations to learn about Sustainability issues and opportunities from some very knowledgeable speakers, make contact with other like-minded people to share experiences and ideas - and provide support to each other. I attend the Big Sustainable Expo each year and have always learnt new things and met really interesting and useful suppliers and contacts. The site visits have helped me see ideas in action and the events provide the ideal opportunity to learn from both the speakers and the experiences of peers. They are a local company to us that really understand and help organisations deal with the local, national and global sustainability agenda.
★★★★★
★★★★★Sustainability Manager
Thank you for holding and galvanising support for The Big Sustainability Expo here in our City. It was great to see so many businesses and partners talking in practical terms to reduce carbon emissions and improve their business, whilst creating a cleaner and greener future. It was widely said to me that without you both, your deep-felt commitment drive, and passion for this subject then firstly this event would not have happened and secondly it would not have been the success it was. We very much hope you will revive the event in 2022 and can help where possible to ensure the long-term success of The Big Sustainability Expo and the continuing delivery of our greener city objectives.
★★★★★
★★★★★Council Leader
We were delighted to attend the Big Sustainability Expo for the first time. The National Oceanography Centre is proud to be based in Southampton and we were pleased that the ocean was included in many climate and environmental conversations at the event. We look forward to working with local and national companies to ensure this continues.
★★★★★
★★★★★Philanthropy Manager
The Southern Sustainability Partnership has been instrumental in both supporting the Council’s agenda of positioning Bournemouth and the wider region as a Green Economy Leader, and in providing a platform for businesses across the South to showcase their sustainability credentials. The Big Sustainability Expo is an excellent showcase of technology and knowledge from across the region and is gaining wide recognition as a leading industry event. The Big Green Awards was an excellent addition this year, helping to bring pride and profile to those of us who are making great strides in being sustainable organisations. Keep up the excellent work.
★★★★★
★★★★★Head of Economic &
Cultural Development
The GHS Group has worked alongside Anita and Lynda for 4 years. We've since been introduce to like-minded people and quickly forged trusting relationships that have made working on projects together easy and enjoyable. If you're thinking you would like to be a greener business I can only recommend you contact these two great ladies and see how you can fit in. Turn up for a couple of Green Supplier Hub meetings and you'll quickly learn there are some great businesses in this room that all want to help. I can only recommend the SSP and their events.
★★★★★
★★★★★Managing Director
I found the Big Sustainability Expo insightful and very productive. The event was well organised with a sufficient number of attendees to make it very interactive and personal. The workshops were a great way to get everyone talking about sustainability within their workplace and share best practice. It was helped by having two very knowledgeable and friendly individuals from Terrafiniti who made us feel relaxed during the workshops. I will definitely be attending future events run by Southern Sustainability Partnership knowing that it will benefit my sustainability journey.
★★★★★
★★★★★Event Attendee
The Southern Sustainability Partnership has allowed us to expand our network and attend events such as the Big Sustainability Expo. This space has allowed us to forge new partnerships with companies like Diguru UK who were also in attendance. Overall, it was an amazing experience for our team at envoPAP and we would highly recommend it to companies who are in their early stages of business to those who have already established themselves.
★★★★★
★★★★★Event Attendee
Thank you for the excellent opportunities which the Big Sustainability Expo bought to us in contacts for our Preventing Plastic Pollution project. We had a very fruitful day and appreciate the organisation which went into such a complex event. I also had an enjoyable evening at the Awards event.
★★★★★
★★★★★Project Manager
Our recycling charity, based in Poole - Dorset, has really appreciated the interest and support that The Southern Sustainability Partnership has given us. Especially attending their Expo, where we received so many positive comments from visitors to our stand. We may not be the biggest player in the world of sustainability, but thanks to The Southern Sustainability Partnership, their enthusiasm for our work has ensured our name and projects have been heard by new audiences and we very much appreciate this.
★★★★★
★★★★★Business Manager
It was our first time exhibiting at The Big Sustainability Expo and it has definitely been worthwhile. The number of meaningful conversations with visitors exceeded our expectations and we are really excited to have had the opportunity to network with other stand holders!
★★★★★
★★★★★Managing Director
We had a great evening at the Awards dinner, and had some interesting leads from the Expo. All in all a successful event, so well done to you and your team. Please send over the information for the event next year. We would certainly be interested.
★★★★★
★★★★★Director
I strongly believe it has helped our business. The partnership is not only about the very useful events but also about meeting business owners and employees whose hearts beat for the environment and, hence, are honest and hardworking partners for you in your projects. Those I have had the pleasure to work with really go the extra mile to fulfil your customer’s requirements and give them a trustworthy impression. All this is thanks to the hard work and dedication of the Southern Sustainability team who do not spare any effort in supporting your business.
★★★★★
★★★★★Managing Director
We've valued what you do and the chance to go for the awards, and have been lucky enough to win, and we've enjoyed the events and seeing what others are doing and what we can learn from them as well. I also really enjoyed meeting one of my childhood heroes Fred Dinenage last time.
Steve Wedgwood
Steve Wedgwood Director of Operational Estates & Facilities
Attending the Southern Sustainability The Big Sustainable Expo 2024 was an incredible experience for Tomato Energy! The event was buzzing with excitement, and we had the pleasure of engaging in numerous insightful and friendly conversations about renewable resources, sustainability, and our exceptional services for both residential and business customers. The highlight of the day was undoubtedly receiving the Winners Award for the Sustainable Change category. It was an honour to accept this award on behalf of our team, and it made the day even more memorable
Zoe McLarenCommunity Engagement Manager
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The Southern Sustainability Partnership strives to help businesses become more energy-efficient and sustainable. We do this through various community activities, including the Big Sustainability Expo and Awards.

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