'I cannot praise the Criteria team enough. I have worked with them for over a decade and found their approach and skills to be exceptional. They understand fieldwork including the most challenging projects, with complex quotas or unusual target groups. They know the market and understand client needs; when problems arise they give excellent advice and always find intelligent, flexible solutions. The whole team is superb and have the rare ability of making every single project a pleasure to work on, both wonderful recruiters and great communicators, they really are the best'. (Habie Schwarz)

'Criteria’s service is absolutely excellent. They have never let us down even on very tight deadlines, they always recruit to spec, communicate clearly, and we love their recruitment recommendations when providing quotes. It is really a pleasure to work with this agency.'  (Ninth Seat).

'Criteria Fieldwork have been our favoured UK fieldwork partner for a number of years and they have been instrumental in the success of countless projects. Due to the closeness of our relationship and the trust we have in the Criteria team, they are consulted at proposal stage to guarantee feasibility and suitability. Criteria have continually proven their willingness to try non-traditional recruitment approaches with us, enabling us to strive to continue including lesser represented voices in research. Criteria consistently succeed in recruiting incredibly challenging samples and some of the least heard audiences, across a huge range of clients and issues. Our successful collaborations include, to name just a few, charity supporters, organisation members, people living with disability and/or long term health conditions and people experiencing destitution'. (Humankind Research)