Comprehensive Business Assurance Services

Transforming. Inspiring. Advising. Assuring

We are a specialist business assurance provider offering a wide range of services including internal audit, anti-crime, security management, IT audit, cyber assurance and advisory services.

We also offer training solutions to help you grow your business through development of your staff.

Business Assurance

Secure Scan - Vulnerability Scanning Subscription Service

Does your organisation place all your reliance on the effectiveness of your Cyber Security measures by an annual penetration test? What happens for the rest of the year? Stop guessing and start knowing, by using Secure Scan from TIAA.

Click below to discover more.

TIAA Secure Scan

Procurement Act Webinars

Public Procurement as we know it fundamentally changed on 24 February 2024, when the new Procurement Act came into force. This is the biggest change to Public Procurement Law in England, Wales and Northern Ireland in a generation.

Catch up on our series of webinars where we discuss the impact this new legislation will have on contracting authorities and how senior management, Audit Committees, Trustees and others in governance roles should prepare for its implementation.

Procurement Webinar

Our services

We offer an extensive range of services for a multitude of sectors

As business assurance providers, we are ideally placed to pro-actively assist organisations to develop strong governance arrangements, and to help...

HR Investigations

TIAA provides a full portfolio of training and development products in a variety of formats, including face-to-face, virtual, and online...

TIAA can help protect your staff, visitors and assets from violence and crime. Our skilled team have been conducting security...

Our highly regarded Anti-Crime Team have been providing our client’s with advice, guidance and practical solutions to prevent and mitigate...

No IT system is 100% secure. What matters is how prepared you are. Understanding the criticality of information security, TIAA...

Digital technology underpins every aspect of how your organisation works. TIAA has a dedicated team of ICT specialists, who have...

An effective internal audit service can play a vital role in helping you maintain a strong governance and risk management...

The TIAA difference

Why Choose TIAA Ltd? A Transparent, Ethical, and Specialist Alternative to Accountancy Practices

When selecting a provider for business assurance services, many organisations instinctively turn to traditional accountancy firms. However, TIAA Ltd offers a superior, specialist alternative, providing a dedicated focus on business assurance rather than broader financial services. This ensures a more independent, expert-driven approach to risk management, governance, and compliance.

The Advantage of Specialism

Unlike generalist accountancy firms, which often blend audit, tax, and advisory services, TIAA Ltd is exclusively focused on business assurance. This means:
No conflicts of interest—we do not offer financial audit or tax services, ensuring completely objective advice.
Deeper expertise—our specialists concentrate solely on assurance, rather than balancing multiple service lines.
Greater independence—our guidance is free from commercial pressures that can exist within multi-service accountancy firms.

Public Listing: A Guarantee of Transparency and Stability

As part of Adsure Services PLC, a publicly listed company, we provide unmatched financial transparency compared to privately held accountancy firms. Our clients benefit from:

  • Complete financial visibility—our financial performance is publicly disclosed, offering clients greater confidence in our stability.
  • Stronger governance and oversight—as a listed entity, we operate under rigorous regulatory scrutiny.
  • A long-term partnership you can trust—our financial resilience ensures we will be here to support you for years to come.

A Certified Commitment to Ethical Business

TIAA Ltd is also a B Corp-certified company, demonstrating our dedication to:

  • Social value and responsible business practices
  • High ethical standards in corporate governance
  • A purpose-driven approach to assurance services

By choosing TIAA Ltd, clients gain a transparent, ethical, and truly independent business assurance partner—one that is free from conflicts of interest, backed by a financially secure parent company, and committed to delivering real social value.

Make the specialist choice. Choose TIAA Ltd.

Tiaa Hub

Get the latest news and updates about our services and the industry from the TIAA hub

One stop for information with the TIAA Client Portal

We continuously look for innovative solutions to offer the best service to our clients, as part of this we developed a bespoke audit tracking system so you can access your service information, resources and view your audit recommendations in one place.

The Client Portal is included as part of our service to you.

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