We’re Grainstone Lee

Founded in 2013 and based in Greater London, we’re a small specialist agency with a big agenda. To help people achieve their potential across trading and development.

Our international team understands the complexities of quantitative investment and development in addition to regional recruitment nuances.
We augment our data driven approach with tools, insights and advice so that you can make the right decisions at the right time. Simply put, we place your needs at the centre of everything we do.

Join the fight against cancer during your non-compete period

In addition to Grainstone Lee, Simon Grainger, is also the founder of the not-for-profit organisation Good Leaver.


Good Leaver is a professional volunteering platform that connects quants and engineers sat on their non-compete period with short term, medical research projects. The projects vary but will normally involve the application of advanced statistical modelling and/or engineering to vast, complex structured and unstructured data sets.


Find out more