Mannings has more than 100 employees and Waterman said that it has particularly strong infrastructure experience and well-established local partnerships.
The co-operation agreement is for a period of two years. It will enable both partners to share technical knowledge and to co-operate for the purpose of obtaining and executing project design and consulting services.
"This partnership offers a good opportunity for us to share our expertise,� said Waterman Group chief executive Nick Taylor. “We know the team at Mannings well and we are confident that our partnership will lead to exciting opportunities."