Computer Support Oxford | Business IT Services Oxford-based IT support company. Affordable computer support and network maintenance for businesses around Oxon, Bucks, London. About Us Businesses in Oxfordshire come to us for new servers and computer networks. They value our IT advice and support maintenance contracts outsourced IT support and our thoroughly professional approach. For good value and excellent service call First Line. We know that trust and confidence are massive issues when it comes to IT support. We believe you want us to have the best interest of your business at heart. Specialist Services Organisations that use First Line to support their IT find that within a year, spending on day-to-day computer issues reduces by at least one third.