Reply, a San Ramon, Ca. company that offers information about homes and autos for buyers and sellers over its Web site, has raised $6 million in additional funding.

The new round was led by Outlook Ventures, and included existing investor Scale Venture Partners and board member Debi Coleman.

Founded in 2001, Reply’s capital raised now totals $23 million.

See the company’s announcement here.

The site looks lightweight, upon first glance. However, the company has serious traction. Chief exec Payam Zamani tells VentureWire (sub required) the site has just reached profitability, and that sales are significantly higher now than they were three years ago, when the company was cited as making sales of about $20 million.

Scale Venture Partners’ partner Sharon Weinbar is even saying an IPO may be in the cards.