David Endler is a General Partner and Co-Founder at Runtime Ventures. He possess expertise in unchecking check boxes. Colleagues describe him as "Working with David during the recognition of security exploits in the VoIP market brought to the forefront his ability to analyse and predict trends in security better than anyone I knew. Being involved with him with the formation of VoIPSA was an honour and seeing his skills in managing teams of people, especially teams of senior executives from different companies, was a demonstration of his personable management style while still maintaining direction and leadership." and "I had the pleasure of reporting directly to Dave for the majority of my tenure with TippingPoint. His versatile management style always seemed to adjust at the right times to provide just the right amount of support and attention to the needs of each individual within his department, but without too much interference or hindrance allowing us to all make consistent and rapid progress in our goals and objectives. I would definitely recommend working for Dave if given the opportunity."