Sweet, yeah i know Yeandles pretty well, their office about 25 mins from ours and my boss used to work for them
We are Southwest Geotechnical http://www.swgeotech.co.uk/, we work for alot of the big Civils firms (Dean and Dyball, Atkins, Black and Veatch etc)
We'd be happy to tender for jobs, give us a bell and we'll have a chat.