The Directory of Social Change offers training and support to charities and not for profit groups. They charge for training courses and you would need to decide if courses offered are appropriate for your organisation and value for money. They also have useful information on their website. www.dsc.org.uk
Monitoring and evidencing the difference your project makes
The Charities Evaluation Service (CES) provides valuable support and resources to help groups deliver, monitor and evidence high quality projects.
They designed Measuring Up! which is part of 'Inspiring Impact' which is an international collaborative programme working with the charity sector to help organisations know what to measure and how to measure. There is a data, tools and systems section on it: inspiringimpact.org/resources/data-tools-and-systems