Please read the testimonials below. The people I've worked with can confirm my experience, skills and results. I encourage you to reach out to them. Also, please have a look at the different type of services I can offer you.

Reinier has helped the team in a relatively short period of time to find their belief in achievable and ambitious results. With his knowledge of how to raise funds he was a huge asset at a time when the team really needed help. What I liked about Reinier is that he is not an outsider. But from day 1 he is really part of the team - he connects and genuinely shares enthusiasm for the goals of the organization. And is clear and sincere about what should and needs to be done. Thanks Reinier, and we will see you again in our new office!
— Marco van der Graaf - CEO World Vision Netherlands

Together with Reinier Oranje Fonds has developed an excellent private fundraising strategy and plan for the coming five years. We can now invest based on a strategy that combines individual giving fundraising principles with our mission, and the possibilities and opportunities within Oranje Fonds. Reinier truly lives up to the mission of “The Future of Fundraising” every single day. Furthermore, I really enjoyed working with Reinier. He is not just a great consultant; he is also a very pleasant and fun colleague. Honestly, he was the best sparring partner I’ve had in more than a decade! I would recommend him to every fundraising organisation.
— Berrie Jurg - Individual Giving at Oranje Fonds

Reinier started working with our team at UNHCR as a senior advisor in 2017. As a new office in a crowded fundraising landscape, Reinier offered us a fresh insight and a positively critical lens that has helped us mature in a rapid speed. Reinier excels in bringing teams to a higher level, particularly when it comes to analysing data, diving into the true meaning of donor loyalty and continuously asking the right strategic questions. In doing so, Reinier always maintains a strong sense of professionalism as well as an open and constructive attitude. I will never look at our numbers in the same way and I have Reinier to thank for that!
— Saskia Baar - Head Private Sector Partnerships at UNHCR Netherlands

I asked Reinier to help me out with an almost impossible interim job. Leading the fundraising team, developing the yearly fundraising plan (based on the strategy he developed earlier on), and helping to find the best head of fundraising out there. He managed to deliver on all three of them in just a few months time. Reinier is one of those rare individuals who knows everything there is to know about his craft fundraising. And he is willing to share it all with a contagious enthusiasm. Combined with his likeable personality makes working with Reinier a great pleasure.
— Stefanie van der Bruggen - Manager Marketing, Fundraising & Communication at Aidsfonds

Reinier has assisted us, Stichting Vluchteling, to develop a plan to professionalize our fundraising department. Reinier proved to be an experienced, skilled and pleasant colleague. We’re still trying to convince Reinier to come and work for us, which will underline we wholeheartedly can recommend Reinier to you.
— Tineke Ceelen - Director at Stichting Vluchteling (IRC)

Reinier is not just highly skilled in fundraising, he is also a strong manager. In the middle of the reorganization at Oxfam Novib, he was staying calm in a very hectic environment. He was well aware of the needs of the team and at the same time Reinier used his fundraising skills to contribute to the public engagement strategy. He also managed the development of the new multiple year targets in his final month. He was a pleasure to work with and I can highly recommend him.
— Zenka Reijn-Slegt - Manager Public Engagement Oxfam Novib

Reinier has been very instrumental in the analysis of our fundraising capabilities. He mapped the situation quickly, came with clear and powerful recommendations and has been a great help in rolling them out. We also asked Reinier to train staff and recruit a new head of fundraising. It was a great pleasure working with him and I will not hesitate to call on him if necessary. I warmly recommend Reinier Spruit.
— Pim Kraan - CEO Save the Children Netherlands

Reinier’s work at MSF (Artsen zonder Grenzen) has been outstanding. With a creative approach to fund-raising he and his team were responsible for sustained income growth in new and existing markets, allowing MSF to expand its medical humanitarian activities.
— Hans van de Weerd - Executive Director MSF Holland

101fundraising is a pioneering effort led by Dutch fundraising advisor Reinier Spruit and online marketer Jeroen Beelen and powered by a crew of energetic volunteers. It attracted quality content and discussion from more than 100 international bloggers. If you haven’t bookmarked this gem or put it on your blogroll you should. [...] Meanwhile, we’re awarding a Special Agitator Raise Emeritus to Reinier and Jeroen as a much-deserved thank you for a job well done.
— Roger Craver & Tom Belford, The Agitator

[101fundraising has been chosen as one of two Best Fundraising Blog honorees in FundRaising Success‘ 2013 Fundraising Professionals of the Year Awards.] This internationally crowdsourced blog came out strong and just keeps getting better. The global insights from some of the world’s most innovative and thoughtful fundraisers are always a pleasure to read. With contributors weighing in from all over the world and representing every type of mission, organization and job title, you just never know what you’re going to get on this blog — other than well-written, informative and entertaining insights on fundraising, that is!
— Meg Gardner, FundRaising Success Magazine