The move, which provides IT and telecoms services to GE Oil & Gas and Caterpillar Articulated Trucks among other customers, will double capacity at the firm’s head office.
The company secured a £75,000 grant from regional growth fund Let’s Grow North East as part of an overall funding package to support its expansion plans.
This will see the development of a new data centre alongside additional office and meeting space to accommodate a growing workforce and extra resources.
New training and product demonstration facilities also come on the back of 40% growth in sales for Advantex in the last financial year.
The firm has earmarked part of the investment towards the development of new superfast broadband services provided to businesses across Teesside and Wearside.
Following the cash injection, the company is eyeing further growth in the next 12 months as it targets a £6m turnover by 2017.
Advantex was established in 2002 and is an accredited Microsoft, Cisco and Mitel partner, employing more than 60 people who provide single source solutions that combine flexibility and added value technologies to deliver high performance benefits to clients.
Its ambitious growth strategy is leading to demand for services and expertise said co-founder and sales director Stephen O’Connell, who added that the firm continues to recruit for sales, account management, technical engineering and business development roles.
O’ Connell said: "We’re incredibly excited about what this investment will allow us to do as we look to grow our team and customer base over the coming months and years.
"We’re already seeing strong traction as economic confidence looks to hold-up and businesses continue to invest while eschewing traditional approaches to IT provision and service support.
"We're also pleased to be able to continue to invest in recruiting talented people, who can provide the highest levels of customer service.
"The next few months promises to be even busier as we look to develop our presence further in core sectors.
"Education providers, who will be facing a changing IT landscape over the next year, can benefit significantly from the expertise and experience we offer as part of new strategic IT, and wider commercial and e-Learning packages and technologies."