Another day, another technology company files for an IPO. After Jive and Angie’s List, customer reviews company Bazaarvoice has filed its S-1 with the SEC today. The company aims to raise as much as $86.25 million in its offering.

The Austin, TX- based Bazaarvoice, provides a SaaS that powers customer reviews platforms and other social commerce features on brand web sites like Best Buy, Blue Shield of California, Costco, Dell, Macy’s, P&G, Panasonic, and QVC. The company serves as a online reviews engine of sorts, aggregating customer reviews from the web, Facebook, Twitter and other social platforms. The company also syndicates retailer’s product reviews to shopping comparison engines. To date, Bazaarvoice has raised $20 million in funding from Battery Ventures, First Round Capital and others.

In the filing, the company says that as of April, it served 587 active clients, including 24 of the top 100 of the Fortune 500. In April 2011, the company served over 7.9 billion impressions, or ‘instances of online word of mouth delivered to end users’ web browsers,’ and has served over 200 billion total impressions since the company’s start in 2005.

In fiscal years 2009, 2010 and 2011, Bazaarvoice generated revenue of $22.5 million, $38.6 million and $64.5 million, respectively. In fiscal years 2009, 2010 and 2011, the company generated 15.8%, 25.2% and 24.9% of our revenue, respectively, from outside of the United States.

Unfortunately, the company is not yet profitable, and has been posting net losses for the past few years. In 2009, 2010 and 2011, the company posted net losses of $5 million, $8 million and $20 million, respectively. And the company warns that it has accumulated a deficit of $40.8 million and may continue to incur losses for the ‘foreseeable future.’

One of the main expenses for Bazaarvoice are sales and marketing efforts; in its fiscal year 2011, the company poured $35 million into sales and marketing. The company doesn’t seem optimistic that profitability is even in its future. From the filing We cannot be certain that we will be able to attain or increase profitability on a client-by-client basis or on a quarterly or annual basis.

Competitors Bazaarvoice include PowerReviews and Revieworld.

Since its launch in April 2007, the number of reviews and products offered on Buzzilions.com has tripled. Today, the site offers more than 400,000 reviews on 125,000 products from over 1,000 ecommerce sites. PowerReviews says that the traffic driven through Buzillions also converts at nearly twice the rate of other shopping portals. In April we compared PowerReviews to Bazaarvoice and other competitors – PowerRevies main advantage is easy integration, and a free version of the product.

User generated reviews help sales at ecommerce sites, but few startups have the technical and product resources to build this internally. PowerReviews, Bazaarvoice and others have stepped in to fill this need. Aggregate Knowledge and Loomia address different needs in the ecommerce space – helping these companies merchandise and recommend products to users based on behavior.

Texas-based Bazaarvoice provides white label Amazon-like editorial recommendations for products to other companies. The pitch is that it is cheaper for companies to use Bazaarvoice’s setup than build their own client in-house.

Other Bazaarvoice products include SyndicateVoice, a program where Bazaarvoice brokers relationships with leading shopping comparison engines — such as Smarter.com, Google, MSN and others syndicating clients’ reviews to these sites with links back to the retailers; and Ask & Answer, a white label community-driven Q&A for any product or service page.

Current BazaarVoice clients include Wal-Mart, Dell, QVC, Sears and Macy’s.

What this article didn’t mention is that Austin-based Bazaarvoice, a company I covered just over a year ago, is the technology and service behind Walmart’s new features.

Like Aggregate Knowledge and Loomia, Bazaarvoice provides services to ecommerce sites that they may not be able to, or want to, build themselves. But where Aggregate Knowledge and Loomia provide recommendations, BazaarVoice offers user generated content features like comments, ratings and reviews.

Getting such a large etailer is a major milestone for them. BazaarVoice isn’t the sexiest startup, but it has a real revenue model and is clearly seeing some success. It was funded by First Round Capital and Tom Ball at Austin Ventures.

See our coverage of Buzzillions as well, a BazaarVoice competitor (albeit targeting smaller ecommerce sites).

Menlo Park-based Aggregate Knowledge, led by CEO Paul Martino and VP Products Chris Law, launched officially today at the eTech conference. The company creates automated “behavior recommendations” for websites – things like “people who look at this also looked at” and “people who bought this also bought” features. See screen shot here for a visual. Integration is extremely simple.

Aggregate Knowledge also creates white label “ajax homepages” for clients that help to promote this information. See this screenshot for an example.

Texas-based BazaarVoice, which is a little further along than Aggregate Knowledge, provides Amazon-like editorial recommendations for products – things like customer reviews, etc. This is big business – BazaarVoice is able to provide their service at a fraction of the cost of in-house development, and even very large sites like CompUSA are starting to adopt their solution. Pricing starts at about $2,000 per month for smaller customers. In addition to Josh Kopelman, BazaarVoice has received funding from Tom Ball at Austin Ventures.