EXHIBIT 99.1

Exponent Reports Third Quarter 2010 Results

MENLO PARK, Calif., Oct. 20, 2010 (GLOBE NEWSWIRE) -- Exponent, Inc. (Nasdaq:EXPO) today reported financial results for the third quarter ended October 1, 2010.

For the third quarter of 2010, revenues before reimbursements increased 12% to $56,906,000, as compared to $50,666,000 in the third quarter of 2009. Total revenues increased 20% to $66,306,000, as compared to $55,245,000 in the same period one year ago. 

Net income for the third quarter of 2010 increased 34% to $7,820,000, or $0.52 per diluted share, as compared to $5,833,000, or $0.39 per diluted share, reported in the third quarter of 2009.  EBITDA¹ in the third quarter of 2010 increased 33% to $14,251,000, as compared to $10,687,000 in the third quarter of 2009. As of the end of the quarter cash, cash equivalents and short-term investments were $92,071,000.

For the first nine months of 2010, revenues before reimbursements increased 6% to $167,235,000, as compared to $158,026,000, in the same period of 2009. Total revenues increased 6% to $186,151,000, as compared to $175,903,000 in the same period of last year. 

Net income for the first nine months of 2010 improved 21% to $21,339,000, or $1.42 per diluted share, as compared to $17,616,000, or $1.17 per diluted share, reported in the prior year period. EBITDA¹ in the first nine months of 2010 improved 22% to $39,084,000, as compared to $32,037,000, in the first nine months of 2009. 

"We are very pleased with our third quarter financial results which benefited from particularly strong utilization and product sales," commented Dr. Paul Johnston, President and CEO. "In the third quarter, we had strong performances in our defense technology development and mechanics and materials practices, as well as our environmental and health groups. We continued to leverage our unique engineering and scientific consulting expertise to address significant technical, health and environmental issues.

"For the full year 2010, we expect to increase revenue before reimbursements in the mid single digits and improve EBITDA¹ margin by approximately 250 basis points. We continue to believe that Exponent offers unparalleled technical expertise and we continue to translate these capabilities into long-term shareholder value," concluded Dr. Johnston.

Today's Conference Call Information

Exponent will discuss its financial results in more detail on a conference call today, October 20, 2010, starting at 4:30 p.m. Eastern Time/1:30 p.m. Pacific Time. The audio on the conference call is available by dialing 877-941-8601 or 480-629-9810. A live webcast of the call will be available on the Investor Relations section of the Company's web site at www.exponent.com/investors.  For those unable to listen to the live webcast, a replay of the call will also be available on the Exponent web site, or by dialing 800-406-7325 or 303-590-3030, and entering reservation 4373839#.

About Exponent

Exponent is an engineering and scientific consulting firm providing solutions to complex problems. Exponent's multidisciplinary organization of scientists, physicians, engineers, and business consultants brings together more than 90 technical disciplines to address complicated issues facing industry and government today. The firm has been best known for analyzing accidents and failures to determine their causes, but in recent years it has become more active in assisting clients with human health, environmental and engineering issues associated with new products to help prevent problems in the future.

Exponent may be reached at (888) 656-EXPO, info@exponent.com, or www.exponent.com.

This news release contains, and incorporates by reference, certain "forward-looking" statements (as such term is defined in the Private Securities Litigation Reform Act of 1995, and the rules promulgated pursuant to the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended thereto under) that are based on the beliefs of the Company's management, as well as assumptions made by and information currently available to the Company's management. Such forward-looking statements are subject to the safe harbor created by the Private Securities Litigation Reform Act of 1995. When used in this document and in the documents incorporated herein by reference, the words "anticipate," "believe," "estimate," "expect" and similar expressions, as they relate to the Company or its management, identify such forward-looking statements. Such statements reflect the current views of the Company or its management with respect to future events and are subject to certain risks, uncertainties and assumptions. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, the Company's actual results, performance, or achievements could differ materially from those expressed in, or implied by, any such forward-looking statements. Factors that could cause or contribute to such material differences include the possibility that the demand for our services may decline as a result of changes in general and industry specific economic conditions, the timing of engagements for our services, the effects of competitive services and pricing, the absence of backlog related to our business, our ability to attract and retain key employees, the effect of tort reform and government regulation on our business, and liabilities resulting from claims made against us. Additional risks and uncertainties are discussed in our Annual Report on Form 10-K under the heading "Risk Factors" and elsewhere in the report. The inclusion of such forward-looking information should not be regarded as a representation by the Company or any other person that the future events, plans, or expectations contemplated by the Company will be achieved. The Company undertakes no obligation to release publicly any updates or revisions to any such forward-looking statements.

¹ EBITDA is a non-GAAP financial measure defined by the Company as net income before income taxes, interest income, depreciation and amortization. EBITDAS is a non-GAAP financial measure defined by the Company as EBITDA before stock-based compensation. The Company regards EBITDA and EBITDAS as useful measures of operating performance and cash flow to complement operating income, net income and other GAAP financial performance measures. Additionally, management believes that EBITDA and EBITDAS provide meaningful comparisons of past, present and future operating results. Generally, a non-GAAP financial measure is a numerical measure of a company's performance, financial position or cash flow that either excludes or includes amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with GAAP. These measures, however, should be considered in addition to, and not as a substitute or superior to, operating income, cash flows, or other measures of financial performance prepared in accordance with GAAP. A reconciliation of the measures to GAAP is set forth below.

CONTACT:  Exponent, Inc.
          (888) 656-EXPO
          info@exponent.com
          www.exponent.com