In January 2022, Optimised Environments (OPEN) joined SLR, a leading environmental and sustainability consultancy. This careful and strategic decision presented itself through several years of successful collaboration and a realisation that our culture and values are closely linked. These core values bring together market leading capabilities and a deep appreciation of collaboration with others in the natural and built environment.

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Since joining SLR, OPEN has collaborated successfully on a range of projects with SLR teams, combining skills in ecology, movement, hydrology, assessment and sustainability to the benefit of the complex and significant projects that are typical of the current challenges facing the environment and society. We also continued to enjoy working with our existing clients and collaborators, sharing diverse ideas and approaches, and bringing our landscape-led approach to a variety of projects and wider professional teams.


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Joining SLR is helping OPEN increase our influence as we pursue high-quality sustainable change in the natural and built environment. OPEN is bringing a new and significant level of experience and professional skill to SLR in the evaluation, creation and regeneration of places, alongside expertise in the assessment of the impacts that projects can bring. Our design-based and place first culture has begun to influence SLR’s evolving professional offer. We believe this collaborative approach will further our collective ability to create natural and built places that respond to their context both physically and socially, enhance the health and wellbeing of our population while also tackling the challenges of climate change.

SLR started as a UK business but now works internationally across six main regions (Africa, Asia-Pacific, Canada, Europe, Latin America, and the US). It provides a range of technical consulting and design services to support sustainable development and growth in the built environment, energy, mining and minerals, industry, and infrastructure sectors. This wider reach of SLR also offers potential for OPEN’s design and environmental ethos to have greater impact in new areas and emerging markets.

This is an exciting time in the ongoing evolution of OPEN and we are delighted to be progressing with SLR.