"Congratulations to both Kristian and Peter. Both are proven leaders and have been fundamental to the success of Business Aspect to date," said parent company Data#3's CEO and managing director Laurence Baynham.
"The company has built a stable and profitable foundation to position itself well for future growth. I'm confident that together in this co-leadership structure, they will lead the Business Aspect team in continuing to improve the performance of organisations by delivering business transformation through technology."
Hanlon joined Business Aspect in 2019 as a territory partner.
He was previously executive general manager at Oakton, client services delivery director at Enterprise Architects, client services director at FromHereOn, consulting and advisory services general manager at SMS Management & Technology, and managing consultant at Logica.
Hanlon holds an honours degree from London Metropolitan University.
"I'm excited to be part of this next chapter for Business Aspect, as co-general manager with Peter," he said.
"This shared leadership model will allow us to provide diversity of thought, different perspectives and improved decision making for Business Aspect. This will be extremely beneficial in contributing to the future growth of the company. We'll continue to attract and retain talented, trusted, passionate and pragmatic leaders and advisors to provide specialist technology consulting and advisory services that solve customers' complex business challenges."
Jarrett has been Business Aspect's head of operations since 2017.
He was previously digital delivery director at SMS Management & Technology, IT operations director at Ardent Leisure, and spent 11 years with Avanade, most recently as APAC application development service line lead.
Jarrett holds a bachelor of business and an MBA, both from Queensland University of Technology.
"I'm delighted to have been appointed to the co-leader general manager position alongside Kristian," he said.
"Co-leadership can be an extremely powerful lever for building a great company. This model will help further align our multiple territories and bolster the consulting practice to ultimately realise Business Aspect's market growth potential. I look forward to working with Kristian to accelerate services and help our customers to solve their ICT and digital transformation challenges by providing insightful business and technology consulting services delivered by our talented team."