Wantful has raised seed financing from Harrison Metal, Greylock, Path CEO Dave Morin and Foursquare CEO Dennis Crowley.

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WePay was boot-strapped for some time and then obtained seed financing after a stint at the Y Combinator from which it emerged in 2009.

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Obaz recently raised seed financing from early Groupon-investor Lightbank.

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When we closed our seed financing the structure of the deal (a convertible note) gave us 12 months to prove to the market that our concept had legs.

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The company, which has raised an unspecified seed financing from Spark Capital and market maker GETCO, provides browser-based tools for anyone with basic programming knowledge to create algorithms and simulate actual trading with them.

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