About Us
Our story, our journey, our legacy

It began in 1986, when Mr. Adekunle Alli, a man driven by integrity, passion, and a deep sense of purpose, founded Adekunle Alli & Co. with a simple but powerful belief — that every business deserves more than just numbers; it deserves a partner in its growth story.
From its earliest days, the firm’s vision was clear:
Mr. Alli’s unwavering dedication and genuine care for his clients became the foundation upon which the firm was built. Many of the firm’s earliest clients still speak fondly of his warmth, precision, and commitment to helping them make the right business decisions — qualities that continue to define our culture today.






Over the years, the firm has evolved from a small practice into a growing team of dedicated professionals, each sharing the same passion for excellence and client success.
Our services have expanded beyond traditional accounting and assurance to include strategic consulting, tax advisory, compliance management, and business support solutions designed to help organizations thrive in a dynamic business environment.
In 2026, Adekunle Alli & Co. rebranded as Fortis, a name that reflects our strength, resilience, and renewed dedication to innovation and client satisfaction.
While our name has changed, our core values remain deeply rooted in the same principles that started it all — trust, professionalism, and genuine partnership.
Fortis is more than a firm; it is the living continuation of one man’s vision — a vision that still burns brightly through every client we serve, every solution we craft, and every success story we help shape.




Over the years, the firm has evolved from a small practice into a growing team of dedicated professionals, each sharing the same passion for excellence and client success.
Our services have expanded beyond traditional accounting and assurance to include strategic consulting, tax advisory, compliance management, and business support solutions designed to help organizations thrive in a dynamic business environment.
In 2026, Adekunle Alli & Co. rebranded as Fortis, a name that reflects our strength, resilience, and renewed dedication to innovation and client satisfaction.
While our name has changed, our core values remain deeply rooted in the same principles that started it all — trust, professionalism, and genuine partnership.
Fortis is more than a firm; it is the living continuation of one man’s vision — a vision that still burns brightly through every client we serve, every solution we craft, and every success story we help shape.
Our belief is simple:
This is our end goal:
This is our heart centered mission:
Our Core Values
At FORTIS, our work is built on principles that define who we are, how we serve, and the lasting difference we make in the business world. These values guide every engagement, ensuring that we deliver not just financial expertise, but meaningful impact for our clients, people, and communities.
Excellence
Our clients deserve nothing less than exceptional service and technical precision. We consistently seek the highest quality in our work, delivering solutions that meet international standards and drive tangible results. Through continuous learning, attention to detail, and professional discipline, we go beyond meeting expectations - we redefine them.
Collaboration
Collaboration sits at the heart of our firm’s culture - within our teams, with our clients, and across the broader business ecosystem. We listen, engage, and co-create solutions that are practical, strategic, and sustainable. By working together and sharing knowledge, we harness collective intelligence to solve complex challenges and achieve greater outcomes.
Innovation
In a rapidly evolving business environment, innovation is key to staying ahead. We leverage technology, creativity, and forward-thinking strategies to deliver modern solutions to traditional challenges. Whether optimizing financial systems or advising on emerging tax frameworks, we are constantly seeking smarter, more efficient ways to help our clients thrive in the digital age.
Integrity
Integrity is the foundation of trust between us and our clients. We act with honesty, transparency, and accountability, ensuring that every decision and recommendation reflects our unwavering commitment to doing what is right - not just what is convenient. Our clients rely on us because they know we will always protect their interests and uphold the credibility of the financial information we provide.
Impact
Beyond numbers, we measure success by the positive outcomes we create for our clients, employees, and communities. Every engagement is an opportunity to strengthen businesses, foster growth, and contribute to Africa’s economic development. Our impact is reflected not only in improved financial performance but in the confidence, clarity, and resilience we help our clients build for the future.
At FORTIS, these values are more than words – they are the compass that guides our every decision, ensuring that we deliver value with purpose, professionalism, and passion.
What they’re talking about company
3800 satisfied & happy customers.
Donald hardson
Aleesha brown
Leverage agile frameworks to provide a robust synopsis for high level overviews. Iterative approaches to corporate strategy data foster to collaborative thinking.
Donald hardson
Leverage agile frameworks to provide a robust synopsis for high level overviews. Iterative approaches to corporate strategy data foster to collaborative thinking.
Aleesha brown
Leverage agile frameworks to provide a robust synopsis for high level overviews. Iterative approaches to corporate strategy data foster to collaborative thinking.
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There are many variations of passages of available but simply free text available in the market sit amed majority alteration in simply free text available in the market some form, by humouor.
There are many variations of passages of available but simply free text available in the market sit amed majority alteration in simply free text available in the market some form, by humouor.





Leverage agile frameworks to provide a robust synopsis for high level overviews. Iterative approaches to corporate strategy data foster to collaborative thinking.