WASHINGTON, Nov. 17, 2016 /PRNewswire/ -- Clutch has released its annual report on leading Search Engine Optimization (SEO) companies in Los Angeles and Boston. The publication evaluates these companies on the basis of their level of focus on SEO services and client feedback about their work. Photo - http://photos.prnewswire.com/prnh/20161116/440507Photo - http://photos.prnewswire.com/prnh/20161116/440508 The top Los Angeles SEO firms for 2016 are: Bruce Clay, Inc., Directive Consulting, 180Fusion, Coalition Technologies, Sachs Marketing Group, Act Bold Media Group, LAD Solutions, Streamline Results, Custom Creatives, and eMarketing Concepts. The top Boston SEO firms for 2016 are: CommonMind, LLT Group, KoMarketing, inSegment, and East Coast Catalyst. "Search engine optimization is perhaps the most crucial component of a modern business's digital identity, but it can be very difficult to build effectively," said Sean Huang, a business analyst at Clutch. "The firms highlighted in our research have demonstrated both their expertise in SEO and their commitment to clients' success on the web." The agencies were selected based on a quantitative and qualitative research method that evaluates each company's technical certifications, experience level, and market presence in the SEO industry. Clutch analysts also interviewed past clients to learn how these firms approach challenges, develop strategies, and execute customized SEO campaigns. Bruce Clay, president of featured firm Bruce Clay, Inc. said, "It's a distinct honor to top this list of leading SEO companies in Los Angeles. Clutch thoroughly researches companies and provides consumers with the third-party, objective reviews and detailed information they need to make educated decisions when choosing a digital marketing agency." Clutch's research in digital marketing segments such as SEO, SEM, and PPC is ongoing, and the firm encourages interested companies to apply to get listed and be included in future coverage.