National Instruments Announces Non-Compliance with NASDAQ Listing Rule 5605 Following...

National Instruments Announces Non-Compliance with NASDAQ Listing Rule 5605
Following the Election of Directors at Annual Meeting

AUSTIN, Texas, May 18, 2009 /PRNewswire-FirstCall/ -- National Instruments
(Nasdaq: NATI) today announced that at its annual shareholders meeting held on
May 12, 2009, Dr. Ben Streetman and Mr. Gary Daniels did not seek re-election
to the board of directors. National Instruments thanks them for their combined
22 years of service. As a result, National Instruments only has three
independent directors on its six person board and was notified by the Nasdaq
Stock Market that the company no longer complies with Nasdaq Listing Rule
5605, which requires a listed company to have a majority of independent
directors on the Board of Directors.

Nasdaq Listing Rule 5065 provides a cure period for National Instruments to
regain compliance with Nasdaq's independent director requirement. This cure
period will run through the earlier of National Instruments next annual
meeting of shareholders or May 12, 2010 or, if National Instruments next
annual meeting of shareholders is held before November 9, 2009, the company
must evidence compliance no later than November 9, 2009. National Instruments
plans to identify another independent director for appointment to the Board of
Directors prior to the expiration of the Nasdaq deadline.

During the cure period, National Instruments common stock will continue to
trade on Nasdaq, subject to continued compliance with other Nasdaq listing
requirements.

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 30,000 different companies worldwide, with no one customer
representing more than 3 percent of revenue and no one industry representing
more than 15 percent of revenue. Headquartered in Austin, Texas, NI has more
than 5,000 employees and direct operations in more than 40 countries. For the
past 10 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.

Contact: Veronica Garza
Investor Relations
(512) 683-6873

SOURCE National Instruments

Veronica Garza, Investor Relations of National Instruments, +1-512-683-6873