Exhibit 99.1

News Release

FOR IMMEDIATE RELEASE

Contact:

Mason N. Carter, Chairman & CEO

973.575.1300, ext. 1202

E-mail: mnc@merrimacind.com

Merrimac Sets Quarterly Record of $12.5 Million for New Orders

WEST CALDWELL, N.J., October 5, 2009: Merrimac Industries, Inc. (AMEX: MRM), today announced a new quarterly record of $12.5 million in new orders received during the third quarter of 2009.  Mason N. Carter, Chairman and CEO stated, “I am especially pleased with this all-time record level of orders. A few points about the content and significance therein are noteworthy, including:

·   A significant content of customer-enabling Multi-Mix® technology for custom RF Assemblies.

·   A favorable mix of Custom Core Technology for satellite applications with high power and complex beam former requirements.

·   A strong confirmation from our Key Account Customers that our focused business strategy is resulting in significant order awards.”

About Merrimac

Merrimac Industries, Inc. is a leader in the design and manufacture of RF Microwave signal processing components, subsystem assemblies, and Multi-Mix® micro-multifunction modules (MMFM®), for the worldwide Defense, Satellite Communications (Satcom), Commercial Wireless and Homeland Security market segments. Merrimac is focused on providing Total Integrated Packaging Solutions® with Multi-Mix® Microtechnology, a leading edge competency providing value to our customers through miniaturization and integration. Multi-Mix® MMFM® provides a patented and novel packaging technology that employs a platform modular architecture strategy that incorporates embedded semiconductor devices, MMICs, resistors, passive circuit elements and plated- through via holes to form a three-dimensional integrated module used in High Power, High Frequency and High Performance mission-critical applications. Merrimac Industries facilities are registered under ISO 9001:2000, an internationally developed set of quality criteria for manufacturing operations.

Merrimac Industries, Inc. has facilities located in West Caldwell, NJ and San Jose, Costa Rica and has approximately 210 co-workers dedicated to the design and manufacture of signal processing components, gold plating of high- frequency microstrip and bonded stripline Teflon (PTFE) circuits and subsystems providing Total Integrated Packaging Solutions® for wireless applications. Merrimac (MRM) is listed on the American Stock Exchange. Multi- Mix®, Multi-Mix PICO®, MMFM®, System In A Package®, SIP® and Total Integrated Packaging Solutions® are registered trademarks of Merrimac Industries, Inc. For more information about Merrimac Industries, Inc. please visit our http://www.merrimacind.com.

This press release contains statements relating to future results of the Company (including certain projections and business trends) that are “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those projected as a result of certain risks and uncertainties. These risks and uncertainties include, but are not limited to: risks associated with demand for and market acceptance of existing and newly developed products as to which the Company has made significant investments, particularly its Multi-Mix® products; the possibilities of impairment charges to the carrying value of our Multi-Mix® assets, thereby resulting in charges to our earnings; risks associated with adequate capacity to obtain raw materials and reduced control over delivery schedules and costs due to reliance on sole source or limited suppliers; slower than anticipated penetration into the satellite communications, defense and wireless markets; failure of our Original Equipment Manufacturer or OEM customers to successfully incorporate our products into their systems; changes in product mix resulting in unexpected engineering and research and development costs; delays and increased costs in product development, engineering and production; reliance on a small number of significant customers; the emergence of new or stronger competitors as a result of consolidation movements in the market; the timing and market acceptance of our or our OEM customers’ new or enhanced products; general economic and industry conditions; the ability to protect proprietary information and technology; competitive products and pricing pressures; our ability and the ability of our OEM customers to keep pace with the rapid technological changes and short product life cycles in our industry and gain market acceptance for new products and technologies; risks relating to governmental regulatory actions in communications and defense programs; and inventory risks due to technological innovation and product obsolescence, as well as other risks and uncertainties as are detailed from time to time in the Company’s Securities and Exchange Commission filings. These forward-looking statements are made only as of the date hereof, and the Company undertakes no obligation to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.