In the process of importing a constituent appeal, we inadvertently added over 10,000 different appeal codes, packages and dates to our database. Zeidman Development created an appeals deletion program for Raisers Edge that took care of the problem in a jiffy.  David saved us countless hours of work and even more frustration.  He is a wizard!


Jodi Anderson, Direct Mail Coordinator/Database Administrator

I just wanted to reach out and thank you for your help in getting us going using the Raiser’s Edge database and API. Your knowledge and expertise was immeasurably valuable. Quite a bit of time was saved thanks to your guidance.


Anthony Ortega, Senior Software Developer

Tommy’s migrated to The Raiser’s Edge and needed to keep confidential Helpline call data separate from fundraising data while at the same time using The Raiser’s Edge to track the names and addresses of callers to process their information requests. David Zeidman designed and implemented a new Helpline product that was not only a standalone application connecting to constituents and actions in The Raiser’s Edge but also a screen from the constituent record in order to view call information. David’s solution was sophisticated yet easy to use and since it integrated so well it felt like just another part of The Raiser’s Edge.

Matthew Burdock, Finance Director

We have enlisted the help of Zeidman Development on a number of occasions to provide upgrades and maintenance work on our Raiser’s Edge and Netcommunity software. We have found them to be responsive, capable, efficient and knowledgeable, and they do not charge the earth for their services. In fact, I have been impressed by their business ethics as demonstrated by their billing us for the hours we use even if this comes in under their quote. Zeidman’s desire to work in partnership with us is evidenced by their culture of finding cost-effective solutions for the client, rather than doing work that doesn’t need to be done in order to make money.It has been a huge relief to find an alternative to Blackbaud that is both cost-effective and delivers what it promises in a timely fashion.

Kirsty Shanahan, Communications Manager, Harrow Association and Harrow Development Trust

We were very pleased with Zeidman Development’s work ethic, the completeness of their product delivery and the timeliness of their responses during the development and testing phase of this engagement. We would not hesitate to engage them again when the need arises.

Michael O’Connor, Director of Development, IS

Following the completion of a two year database migration and business process alignment project we were faced with significant clean-up tasks and clunky work-arounds to support business processes not facilitated by standard system functionality. David Zeidman joined the Help the Aged Central Database team, eight weeks post-launch on recommendation from Blackbaud’s technical division in the US.Since his arrival David has accelerated clean-up activity using his software and programming skills, developing a number of plug-in utilities to automate many of our key work-arounds and improve data processing efficiency, including a new import utility that checks for HtA’s own business rules.


Michelle de Souza, Head of Central Database Services

Whilst researching techniques to develop a Raiser’s Edge plug-in in-house we consistently came across Zeidman Development every time a forum question was answered. After initial contact it became quite clear that it was going to be far more economical to outsource the plug-in creation to Zeidman Development. Not only was it delivered within days, but they used methods we weren’t aware of which increased significantly its usability. Since implementation they have continued to answer our questions relating to our expansion of their original design which has been greatly appreciated. We couldn’t be happier with the prompt delivery, quality of code and the continued support.

John Batistich, Director