Our Leadership Team

Ruth Davison,
Chief Executive

A passionate believer that mixed communities work best for everyone and help make great places, Ruth is proud to lead ISHA.

Building genuinely affordable rented and shared ownership homes and being a fantastic landlord - helping both communities and individuals flourish – is what motivates her.

Ruth joined the organisation at the beginning of 2019, having previously worked as Director of Policy and External Affairs at the National Housing Federation (NHF) for more than a decade and before that in strategic roles in the NHS and local government. She also worked at the Audit Commission and in higher education.

Despite ISHA’s good reputation, Ruth is keen to drive ever-higher standards of service delivery and accountability, especially to residents.

Dawn Harrisson, 
Director of Housing & Neighbourhoods

Dawn has been with ISHA since 2016 as Head of Customer Homes and was promoted in 2019 to become Director of Housing and Neighbourhoods.

Dawn has over 25 years' experience working in housing in both the public and private sector.

She is excited by the challenge of delivering our shared vision of a cracking landlord service and ensuring our homes are safe for everyone.

Dawn is looking forward to working with our tenants and residents to understand what they expect from us as a landlord and for them to help shape the services we deliver.

Gary Pliskin, Finance Director

Gary qualified as a Chartered Accountant in the mid 1990s.

He worked in a number of senior finance positions in the private sector, before joining Barnet Homes Ltd in 2005. As the Head of Finance at Barnet Homes Ltd, Gary was responsible for the financial management of 15,000 properties and an associated £160m Decent Homes programme.

Janet Mussington, 
Director of Development

Janet joined ISHA as a Development Consultant before stepping into the role of Director of Development. Janet brings a wealth of experience, having worked in the housing sector most of her career, with a core focus on customer-focused development and regeneration. As well as working for multiple small housing associations throughout her career, Janet was previously the Head of Development for London at Sanctuary Group.

Thea McNaught-Reynolds
Director of Culture, Communications and Involvement

Thea joined ISHA at the end of 2021 as the Head of Communications and Involvement and was delighted to become Director in 2023.

She brings over 20 years of strategic communications experience, influencing audiences and delivering behaviour change outcomes in the public and private sectors, including leading high-profile marketing campaigns for PwC.

With her strong interest in diversity and inclusion, she incorporates her values into everything she does and is passionate about creating spaces where people can thrive.

Taking on responsibility for People and Culture in combination with Communications, Resident Involvement and Complaints at ISHA is a natural extension of her people focus and strengthens ISHA’s commitment to compassion and respect in all we do.