Would you be aiming to join EC Harris as a management consultant, rather than in a more technical role? And is your existing experience in something transferrable such as project management, or is it more narrowly technical?It might be possible to join Accenture or Deloitte after a stint there. However, EC Harris is still rooted in the infrastructure sector - I don't imagine you will be doing "mainstream" consulting by service/sector, so this does limit options. Other firms primarily known as engineers or surveyors also do a bit of this type of management consulting - Arup, Davis Langdon, Atkins, Mott Macdonald. However people do move from these firms to mainstream consultancies -perhaps not very often but I can think of at least one person who works at Deloitte who used to be at Arup.Another possibility - depending on your experience - would be programme and project management somewhere like PA or a specialist firm. Not sure how you would fare with your A Level grades - the degree may or may not compensate.As far as I'm aware the only mainstream consultancies with a construction specialism are Deloitte (as part of "Real Estate Consulting" in their Corporate Finance service line) and PwC (Capital Projects team), which both recruit engineers. However I think they might not consider you due to your A Level grades. Might be worth a try though.I don't know what EC Harris pays - imagine they have to pay a bit more to their management consultants than their surveyors. I suspect it would be a fair bit lower than the Big 4 though.