Dionex Corporation was a leading American manufacturer specializing in chromatographic systems, primarily ion chromatography (IC) and high-performance liquid chromatography (HPLC), along with columns, accessories, and software. Founded in 1975, Dionex built a strong reputation for innovation and quality in the analytical instruments market. In May 2011, Dionex Corporation was acquired by Thermo Fisher Scientific for approximately $2.1 billion and was integrated into Thermo Fisher's Analytical Technologies Segment, specifically within the Chromatography and Mass Spectrometry Division (CMD). The Dionex brand name continues to be used for a range of chromatography products under Thermo Fisher Scientific, signifying a legacy of expertise in separation sciences. As an independent entity, Dionex Corporation no longer operates; its functions, employees, and product lines are now part of Thermo Fisher Scientific.
Historically, Dionex's global HQ encompassed R&D, manufacturing, sales, and administration. Post-acquisition, the Sunnyvale site remains a key center for Thermo Fisher Scientific, particularly for its Chromatography and Mass Spectrometry Division (CMD), focusing on the development and manufacturing of chromatography instruments and consumables, including those formerly under the Dionex brand.
The Sunnyvale campus is a significant R&D and manufacturing hub for advanced analytical instruments within Silicon Valley. Specific architectural highlights are not widely publicized, but its functional design supports complex scientific instrument development and production.
Historically, Dionex fostered an innovative, research-driven, and technically-focused culture. As part of Thermo Fisher Scientific, the site aligns with Thermo Fisher's corporate culture, which emphasizes Integrity, Intensity, Innovation, and Involvement (the '4i values'), alongside a strong commitment to quality and customer service.
The Sunnyvale site holds historical significance as the birthplace of many Dionex innovations in ion and liquid chromatography. It continues to be a center of excellence for chromatography technologies within Thermo Fisher Scientific, contributing to advancements in analytical science.
Dionex-branded products are supported globally through Thermo Fisher Scientific's extensive worldwide network. This includes sales offices, technical support centers, R&D facilities, and manufacturing sites across North America, Europe, Asia-Pacific, Latin America, and other regions. Thermo Fisher Scientific provides comprehensive global support for its entire analytical instrument portfolio, including Dionex chromatography systems, ensuring service, application expertise, and product availability to customers in virtually every country.
1228 Titan Way (approximate, as part of a larger Thermo Fisher campus)
Sunnyvale
California
USA
Address: Dornierstrasse 4, 82110 Germering, Germany
Serves as a European hub for chromatography innovation, production, and customer support. Integral to Thermo Fisher's global supply chain and R&D network for analytical instruments.
Address: 168 Third Avenue, Waltham, MA 02451, USA
Oversees global operations, sets strategic direction, and allocates resources across all Thermo Fisher Scientific divisions and brands.
Address: Building 6, No. 27 Xin Jinqiao Road, Pudong, Shanghai 201206, China (Example Thermo Fisher China HQ)
Supports the growing demand for analytical instruments in the Asia-Pacific region, offering tailored solutions and technical expertise for local customers using Dionex and other Thermo Fisher products.
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As of April 2025, Dionex Corporation' leadership includes:
Dionex Corporation has been backed by several prominent investors over the years, including:
As Dionex Corporation was acquired by Thermo Fisher Scientific in 2011 and does not operate as an independent entity, there are no executive hires or exits specific to 'Dionex Corporation'. The following information pertains to executive changes within Thermo Fisher Scientific, the parent company.
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Dionex Corporation, as an acquired entity, uses the email system of its parent company, Thermo Fisher Scientific. Common email formats at Thermo Fisher Scientific typically involve a combination of the employee's first name and last name.
firstname.lastname@thermofisher.com or firstinitiallastname@thermofisher.com
Format
jane.doe@thermofisher.com
Example
90%
Success rate
Thermo Fisher Scientific Newsroom • May 7, 2024
Thermo Fisher Scientific announced the winners of its 2024 ASMS Research Awards, recognizing outstanding research in mass spectrometry. While not specific to Dionex, this highlights Thermo Fisher's commitment to analytical sciences, which encompasses chromatography....more
Thermo Fisher Scientific Investor Relations • April 24, 2024
Thermo Fisher Scientific reported its Q1 2024 financial results, detailing performance across its segments, including the Analytical Instruments Group which houses Dionex-branded chromatography products. The report often provides insights into market trends and demand for such technologies....more
CISION PR Newswire • February 29, 2024
Thermo Fisher Scientific announced the launch of the new Thermo Scientific Vanquish Neo UHPLC System, aimed at enhancing productivity and performance in pharmaceutical quality assurance/quality control (QA/QC) and research and development laboratories. This product line is a successor and complement to legacy Dionex expertise in HPLC/UHPLC....more
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