About Us

A unique value proposition that makes sense to our clients

Focus on the right things...trust and vision.

Optimised organisation

We are privileged to help our clients build enduring businesses.


We understand the complexity of starting, running and growing a business.

Multiskilled Founders

Our service model is purpose built for business owners who possess entrepreneurial and management skills. 


Designing and building the best enterprise for you the business owner so that you can successfully realise your ambitions in your business.

How we work

Our most frequently asked questions and answers

About us

Guy Addison

Over the past two decades, Guy has developed global strategies, built and managed teams and delivered upon complex projects spanning multiple jurisdictions. With extensive experience in executing corporate transactions, Guy has specific buy and sell-side advisory work including raising capital and helping family businesses involved in private equity transactions. Read More

Keith Comline

Keith Comline provides legal services and advice in the areas of commercial and corporate law to both local and international clients, with specialisation in finance, investments and mining law. Keith holds an Honours degree in Business Science and post graduate qualifications in Law as well as an MBA and gained experience in Corporate Finance in London prior to starting his legal career in South Africa. Read More

Our firm

We provide high-impact enhancements to emerging and developed businesses.

With multi-disciplinary professionals contributing decades of combined experience, our firm combines global best practice with hands-on transaction expertise. Our proprietary models use data sourced from venture capital and private equity industry leaders and combine this with our deep experience in local markets, complemented by independent review and rating. 

We subject our methodology to continuous refinement ensuring that our insight, advice and direction achieves the ultimate objective: ‘activating potential to achieve value’ for you our client.


Our services

The company:

    • Offers unique business solutions that are characterised by a high attention to detail and affordable rates.
    • Is attractive to medium to large business including listed companies and family investment firms.
    • Provides a unique blend of technical expertise, practical experience and innovative solutions for businesses and their owners
    • Operates across the African continent, Middle East, and Europe.


Chosen for our guidance and hands-on expertise, over the past two decades we have worked with hundreds of clients to develop profitable, optimised and enduring enterprises.

Guy, founded Addison Advisory Incorporated in 2008 whilst studying part-time when he was asked by friends and family to assist in matters of business transactions, negotiation and valuation.

In 2012 Keith founded his own specialist corporate and commercial law firm whilst completing his MBA, which firm provided independent legal services to local and international client within many industries, including private equity, finance, BEE transactions, corporate restructuring and M&A and wealth structuring.

Addison Advisory was merged with Comline Attorneys in 2020 in order to provide multi-disciplinary professional services to existing and new clients. The firm offers turn-key solutions for clients who want personalised service from trusted professionals with deep expertise in their chosen field. The firm is focused on established business as well as the SMME sector with specific experience in family run businesses. The team has operated across the African continent from their offices in Sandton, South Africa.



How can we add value to your business?

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