Who we are
Specialist Business Assurance
We stand out from the crowd
Tiaa is distinct from other providers because we are a specialist business assurance organisation rather than a general accountancy firm.
Corporate Social Responsibility
As an employee-led company Tiaa is committed to being a model member of the wider community, and we take this...
Providing Assurance for 30 Years
For more than 30 years, Tiaa has helped organisations navigate complexity, manage risk and improve performance through independent assurance and advisory services. What began in 1995 as a specialist internal audit provider for the social housing sector has grown into one of the UK’s leading providers of assurance, risk and advisory services.
Today, we support organisations across housing, healthcare, local and central government, education, charities and emergency services. Combining deep sector expertise with a genuinely human approach, we work alongside our clients to provide clear insight, strengthen resilience and deliver meaningful, lasting improvements.
Our specialist teams include internal audit, digital assurance, anti-crime, security management and digital forensics, supported by colleagues across England, Scotland and Wales. This breadth of expertise allows us to deliver practical, evidence-based advice tailored to the challenges our clients face.
As a specialist assurance provider, we’re focused on more than compliance. We help organisations make confident decisions, strengthen governance and achieve better outcomes for the people and communities they serve.
Tiaa is an 100% subsidiary of Adsure Services PLC – find out more about Adsure Services PLC here.
Our Purpose
We put our relationship with clients at the heart of the way we do business. We sincerely care about each and every client, which is one of the reasons so many of our clients reappoint us.
Our success is underpinned by our commitment to corporate responsibility. We care about our clients, our staff and our community.
We are not a multi-national, faceless, impersonal organisation. We pride ourselves on being approachable and treating each client as an individual: you will never be just another number to us. Our clients will always be at the centre of everything we do. We know that each organisation we work with has their individual challenges and requirements. That is why Tiaa never delivers a standard service, but a truly personalised one created in partnership with you.
From the very start, we will liaise closely with you to understand the particular risks and issues your organisation faces. Tiaa’s approach places you at the heart of our business, ensuring that our plans, our work, and our delivery are specifically tailored to you. We seek to earn your trust and loyalty, not only through the high quality of the service we deliver, but also through the strength of the personal relationship we build with you.
As our client, you will have our attention whenever you need it because we care about you.
Demonstrating Our Commitment
Every accreditation or award that we achieve helps us to perfect our procedures of work. Whether it’s based on quality or environmental impact we aim to ensure that we are always improving and monitoring our success.
Our Values
At Tiaa we are driven by our values
Caring
PEOPLE - To be a supportive employer of choice. Promote equality, diversity and inclusion. Invest in the future of our people. Provide an open and compassionate working environment. Support the physical and mental security of our people. Embed our ethical, transparent and collaborative culture.
Trusted
OUTPUTS - To provide services with integrity and of the highest quality. Invest in customer care. Deliver the highest standards of quality assurance. Innovate our delivery infrastructure. Demonstrate the highest standards of corporate and ethical governance. Maintain our independence and objectivity.
Accountable
GROWTH - To exceed our shareholder expectations. Realise our potential. Sustainably use our resources. Maintain and grow in core markets. Proactively identify opportunities to diversify. Enhance shareholder value.
Sustainable
PLANET - To minimise our impact on the planet and support our customers to do the same. Become net zero by 2030. Give back more than we take. Achieve carbon literacy within our workforce. Share our best practice with customers. Be open and transparent.
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