National Instruments Increases Quarterly Dividend to 10 Cents per Share

Board Approves New Stock Repurchase Program

AUSTIN, Texas - July 26, 2007 - The National Instruments (NASDAQ: NATI) Board of Directors increased the quarterly dividend by 3 cents to 10 cents per common share payable on Sept. 4, 2007, to shareholders of record on Aug. 13, 2007.

NI also announced today that the board of directors approved a new stock repurchase plan that increases the number of common stock shares the company is authorized to repurchase by 2.4 million shares to 3 million shares. This new stock repurchase program does not have an expiration date.

About National Instruments
National Instruments (www.ni.com) is transforming the way engineers and scientists design, prototype and deploy systems for measurement, automation and embedded applications. NI empowers customers with off-the-shelf software such as NI LabVIEW and modular cost-effective hardware, and sells to a broad base of more than 25,000 different companies worldwide, with no one customer representing more than 3 percent of revenue and no one industry representing more than 10 percent of revenue. Headquartered in Austin, Texas, NI has more than 4,300 employees and direct operations in nearly 40 countries. For the past eight years, FORTUNE magazine has named NI one of the 100 best companies to work for in America. Readers can obtain investment information from the company's investor relations department by calling (512) 683-5090, e-mailing nati@ni.com or visiting www.ni.com/nati.

National Instruments, NI and ni.com are trademarks of National Instruments. Other product and company names listed are trademarks or trade names of their respective companies.