NanoOncology is looking for its first round of financing to finish initial studies on an ovarian cancer drug.

Medical Engineering Innovations seeks funds to pair with federal grants so it can move ahead with a device designed to reduce blood loss during liver resection surgery for cancer patients.

Imbed Biosciences needs investors to continue efforts to take to market its product, an antibacterial coating for wound dressings made of silver nanoparticles.

Leaders of the three Madison businesses and 40 other young technology companies from around the Midwest will have a chance this week to talk up their companies to their peers, people in support industries, and potential investors.

The Wisconsin Early Stage Symposium will be Wednesday and Thursday at Monona Terrace. More than 425 people are expected to attend. That includes about 40 investors, said Tom Still, president of the Wisconsin Technology Council, which produces the event.

Venture capital financing in the U.S. slowed sharply in 2009 but was on track to end higher in 2010, although third-quarter funding was comparable to last year's, according to the National Venture Capital Association.

Still said investors are on the lookout for good possibilities. "In this climate, their first inclination is to make sure they stay invested in deals they're already in, but at the same time, they don't want to overlook good prospects," he said.

NanoOncology is trying to put together $2 million in financing and to find a strategic partner for studies into Evirna, an RNA-related drug it is developing to fight cancer, chief executive Thomas Primiano said.

Medical Engineering Innovations hopes to raise $850,000 to help pay for final development of its product, which will seal blood vessels with an electrosurgical pulse, development director Mark Gambale said.

Imbed Biosciences, which won UW-Madison's G. Steven Burrill Business Plan Competition last June, would like to clinch $500,000 in private financing to refine its prototype, co-founder Ankit Agarwal said.

The symposium also will feature 19 workshops.

Gov.-elect Scott Walker will address the conference at 8:15 a.m. Thursday.