Search company, investor...
Blekko company logo


Founded Year



Asset Sale | AssetsPurchased

Total Raised


About Blekko

Blekko is building a web search engine that in addition to crawling billions of web pages aims to offer greater transparency and user control than traditional search engines Blekko aims to provide access to the algorithms and data that the firm uses to determine relevancy.Their primary differentiator are query refinement tools they call Slashtags. These tools which are used by typing things like /news or /date or /amazon or /blogs aim to make it simple for users to filter results. Users are also able to create their personalized slashtags based on a group of URLs. Blekko aims to also let users search via a variety of APIs or within a specific domain. Slashtags ultimately aim to allow search personalization and filtering through the creation of mini-indexes of authoritative or favorite sites. According to the company, slashtags aim to address the content-spam problem by providing control over results.In addition to transparency and user control through the use of slashtags, Blekko aims to enable a social element by allowing users to users to ƒ¢¢š¬…followƒ¢¢š¬‚ one another.

Headquarters Location

130 Shoreline Drive Suite 200

Redwood City, California, 94065,

United States


Missing: Blekko's Product Demo & Case Studies

Promote your product offering to tech buyers.

Reach 1000s of buyers who use CB Insights to identify vendors, demo products, and make purchasing decisions.

Missing: Blekko's Product & Differentiators

Don’t let your products get skipped. Buyers use our vendor rankings to shortlist companies and drive requests for proposals (RFPs).

Blekko Patents

Blekko has filed 1 patent.

patents chart

Application Date

Grant Date


Related Topics




Spamming, Social networking services, Search engine optimization, Information retrieval techniques, Black hat search engine optimization


Application Date


Grant Date



Related Topics

Spamming, Social networking services, Search engine optimization, Information retrieval techniques, Black hat search engine optimization



Latest Blekko News

IBM Acquires Blekko’s Web-Crawling Technology

Mar 31, 2015

VentureWire , March 31, 2015, (c) 2015 Dow Jones & Company, Inc. International Business Machines Corp ., which has been acquiring startups or their technologies to make its supercomputer Watson more adept at making sense of enormous amounts of data, has acquired technologies from Blekko Inc., IBM said in an online posting. Blekko offers Web-crawling and data-filtering products that return curated, categorized search results, the company has said.... Document DJFVW00120150331eb3vn9ch8 To continue reading this story login at the top right or try the product Document DJFVW00120150331eb3vn9ch8 Exclusive news and deep analysis of what’s really happening with venture capital-backed companies, their investors,and their management teams.

Blekko Frequently Asked Questions (FAQ)

  • When was Blekko founded?

    Blekko was founded in 2007.

  • Where is Blekko's headquarters?

    Blekko's headquarters is located at 130 Shoreline Drive, Redwood City.

  • What is Blekko's latest funding round?

    Blekko's latest funding round is Asset Sale.

  • How much did Blekko raise?

    Blekko raised a total of $56M.

  • Who are the investors of Blekko?

    Investors of Blekko include IBM, U.S. Venture Partners, Presidio Partners, PivotNorth Capital, MLC Investments and 9 more.

  • Who are Blekko's competitors?

    Competitors of Blekko include DuckDuckGo and 8 more.

Compare Blekko to Competitors

DuckDuckGo Logo

DuckDuckGo is an Internet privacy company that empowers users to take control of personal information online, without any tradeoffs.

Hakia Logo

hakia provides an ontological semantic and natural language processing (NLP) based search engine.

Imedix Logo

iMedix is a free website that aims to help users find and share health information. Logo changes the way people read news on mobile devices by offering a short, engaging jump-off point into a curated feed of timely articles from reputable publications. focuses on curation, not just search. They deliver this customizable, tailored experience through an interface for readers to enjoy news.

Wolfram Alpha Logo
Wolfram Alpha

Wolfram Alpha is a privately-held technology company building a computational knowledge engine (and not a search engine per the company). Wolfram Alpha generates output by doing computations from its own internal knowledge base, instead of searching the web and returning links. As of October 2010, Wolfram Alpha does not have external investors. Wolfram Alpha is affiliated with Wolfram Research.

Ecosia Logo

Ecosia is a search engine that plants trees with each search.

Discover the right solution for your team

The CB Insights tech market intelligence platform analyzes millions of data points on vendors, products, partnerships, and patents to help your team find their next technology solution.

Request a demo

CBI websites generally use certain cookies to enable better interactions with our sites and services. Use of these cookies, which may be stored on your device, permits us to improve and customize your experience. You can read more about your cookie choices at our privacy policy here. By continuing to use this site you are consenting to these choices.