The University of Melbourne possesses a vibrant startup and venture capital ecosystem that has birthed numerous successful businesses. Their supportive environment includes an array of initiatives designed to foster entrepreneurship and innovation among students and alumni.

For instance, the 'Melbourne Accelerator Program (MAP)', launched in 2012, is one of the university's vital initiatives that provides startups with mentoring, network building, and seed funding. This program has nurtured many startups, including 'CNSDose' and 'Nuraloop'. 'CNSDose' is a tech company that uses advanced genomic technology in prescribing medication for mental ailments, while 'Nuraloop' creates personalized headphones.

The university also hosts 'Wade Institute of Entrepreneurship' which offers a Master of Entrepreneurship degree and accelerates startup ideas into viable projects. The 'Translating Research at Melbourne (TRaM)' program accelerates the development of research-based startups.

Indeed, these programs have seen the creation of some notable success stories. One that warrants mention is the educational tech platform 'Edrolo'. Its founders, Duncan Anderson and Ben Sze, are both alumni of the University of Melbourne. Another example is 'Vumero', an online platform for professional education and training, founded by Charles Cameron, a University of Melbourne alumni.

Furthermore, the extensive network of alumni plays a crucial role in the university's venture capital ecosystem. Several former University of Melbourne graduates have turned into successful venture capitalists. Square Peg Capital's founders, Paul Bassat and Tony Holt, both studied at the University of Melbourne.

In conclusion, the University of Melbourne provides a nourishing environment for startups. Leveraging its alumni network, programs like MAP, Wade Institute, and TRaM, the university has aided numerous students and graduates in realizing their entrepreneurial dreams.