Global Business

Our focus

Open Books provides professional back-office and administrative support for companies across the globe. 

Let us support your business so you can focus your time and resources on building your company.

Business Solutions

We provide outsourced professional services and support that follow country-specific accounting and tax requirements to our valued clients.


Company Secretarial

Accounting Services


Risk and Compliance

Industry Best Practice

Highly qualified and experienced team of experts

Valuable industry experience, across sectors

Robust infrastructure and world-class connectivity

Professional solutions that are compliant and beneficial

Advantages of Outsourcing

Cost-effective management of administration-intensive processes

Optimise your business by reducing time spent on non-core activities and focusing on core services

Ensure stringent compliance with all relevant regulations

Capitalise on operational cost savings, up to 50%

Professional Support

Our services are provided by a team of experts in operations, finance, human resources management, information technology and compliance, each member highly qualified and experienced in their field.

Senior Executive Committee:

Ryan Hartslief

Managing Partner

BCom (Financial Mgt),
BCompt (Hons), CA(SA)

As co-founder of Openbooks, Ryan shares the responsibility for the strategic leadership and commercial success of the business.

Ryan proudly served his articles at BDO and is a qualified and registered Chartered Accountant.  He has over 10 years of corporate sector experience in auditing, accounting and business process outsourcing.

His commercial expertise and industry experience in business systems analysis, business process solutions, call centre operations and client services development were achieved during his five years as Group Chief Operations Officer and Director of the Upstream Group of companies, having provided services to the likes of Woolworths Financial Services, MR Price Money, RCS, Direct Axis, Capfin, Truworths and The Foschini Group.

Ryan is married with two children, is a self-professed coffee and food aficionado who is passionate about sports of any kind and has recently taken up surfing.

Andrew Portmann

Managing Partner

BCompt (Hons), CA(SA)

Andrew served his articles at BDO in Durban where he stayed on as an Audit Supervisor overseeing audits of companies within the construction, FMCG and Services industries.

In 2015 he moved to the Upstream group of companies where he became the Group Chief Financial Officer.

As the co-founder of Openbooks, Andrew is responsible for the financial management and investment success of the business.  He has extensive industry sector experience in all financial, investment and risk-based services which was refined whilst servicing Woolworths Financial Services, MR Price Money, RCS, Direct Axis, Capfin, JD Group, Truworths and The Foschini Group.

Andrew has always lived in Durban, is married and has two children. With a love for all sports, he enjoys playing indoor soccer and golf.