He will be responsible for devising a greater strategic direction for the organisation, bolstering lobbying efforts and driving the industry’s representation in the lead up to the next general election.
Francis is replacing Crispin Oyen-Williams who left the group in May to join Keene Communications as a senior adviser.
He will be running a team of three with the organisation's policy manager, senior economist and manager of the devolved nations & regions reporting directly to him.
Francis said: "Over the coming months and years the main policy debate in this country will be over the provision and regeneration of the infrastructure network and I look forward to helping shape this debate with ACE's wide membership."
Francis was previously head of government affairs at the London Taxi Company where he was responsible for developing the organisation’s policy positions and communicating them to ministers, policy makers and the media.
The ACE has 500 organisation members, with 250,000 staff across the world. Members include WSP, Atkins and AECOM.
Francis reports to CEO Nelson Ogunshakin OBE, who said: "ACE has been successfully repositioned over the past four years on political and stakeholder engagement, and now acknowledged as the authoritative business association of choice for all players (small, medium and large) in the consultancy and engineering sector."