The company has supported charities across the East Midlands for the last decade.
In the past, employees at Andrew & Co LLP have run 10k races in aid of their charity of the year, but they aim to beat their previous efforts this year by hosting quizzes and holding novelty jumper days for staff.
The company will also work closely with the cathedral fundraising team to maximise their efforts across the city.
Andrew & Co LLP Solicitors already supports the cathedral by donating its outstanding client balances towards the maintenance of the building.
The running and upkeep of the historic building, which sits at the heart of Lincoln, is predominantly reliant on public donations and the generosity of companies across the city. It costs £1.6 million every year to maintain the building alone.
Chief Executive of Andrew & Co LLP Julie Bailey met the Dean of Lincoln, the Very Reverend Christine Wilson last week to kick off the partnership.
Speaking outside the cathedral, the Dean said: “This is a real encouragement for all the staff at the cathedral. We’re incredibility grateful to Julie Bailey and her team at Andrew & Co for pledging their generous support.
“For us it’s about partnership across the city and supporting one another in a shared endeavour.”
Last year, Andrew & Co supported the Lincolnshire and Nottinghamshire Air Ambulance.
Julie Bailey, Chief Executive at Andrew & Co LLP Solicitors, commented: “We’ve supported the cathedral for years, so this year’s decision was a very simple one for staff, who took the decision collectively.
“Many of our colleagues live in Lincoln, or in the Lincoln area. The cathedral is a wonderful building and puts Lincoln on the map. We’re all proud of it and want to make sure it’s standing for generations to come.
“We shouldn’t take this beautiful building for granted. It’s still standing because of the generosity of so many. It’s our pleasure to play a small part in that.”