The companies listed in Gironde primarily operate in the electronics, semiconductor, and aerospace sectors. They range from mid-sized firms to larger groups, with a notable presence of established companies founded between the 1970s and early 2000s. Examples include SERMA Group, specializing in electronics solutions, Photonis, which creates photo-detection and low-light imaging technologies, Amplitude Laser, a designer of ultrafast lasers, and PNY Technologies Europe & MEA, a global leader in PC components.
A significant cluster of these companies, including THALES AVS FRANCE SAS and Exosens, are headquartered in Mérignac, indicating a geographical concentration of expertise in aerospace and high-tech manufacturing within the department.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
SERMA Groupserma.com
An independent, international platform specializing in electronics solutions and services for high-stress environments, offering expertise in 5 core business lines |
1,268 | |||
| 2 |
THALES AVS FRANCE SAS
Design and manufacture of advanced avionics and vision systems for aerospace applications, enhancing pilot situational awareness and safety. |
1,067 | |||
| 3 |
Photonisexosens.com
Photonis part of Exosens creates cutting-edge photo-detection and low light imaging technologies for defense, nuclear safety, life science, and industrial applications worldwide |
523 | |||
| 4 |
Amplitude Laseramplitude-laser.com
Design and manufacture of ultrafast solid-state and fiber lasers for scientific, medical, and industrial applications worldwide with global support. |
320 | |||
| 5 |
Exosensexosens.com
A European leader in high-end electro-optical technologies for defense and industrial applications with over 85 years of experience in developing detection and imaging solutions |
283 | |||
| 6 |
SERMA Technologiesserma-technologies.com
Specialist in analysis, control, and expertise of electronic components, boards, and systems with extensive testing laboratory resources. |
220 | |||
| 7 |
IMS Laboratoryims-bordeaux.fr
Innovative research company specializing in integrated circuit design, material modeling, automated control, and addressing societal challenges for a sustainable future |
150 | |||
| 8 |
PNY Technologies Europe & MEApny.com
Global leader in PC components, flash memory, power, and mobile accessories Offers solutions for mobile, photo/video, gaming, and professional needs worldwide |
121 | |||
| 9 |
Alphitan Groupalphitan.com
Specialized companies providing sales, repair, and maintenance of industrial electric motors, electronic systems, and automation across multiple European sites. |
112 | |||
| 10 |
SYNERGY SCOPsynergy-scop.fr
Manufacture complex electronic boards with high reliability and traceability for aerospace, defense, medical sectors, offering certified processes and obsolescence management. |
93 | |||
| 11 |
ALPhANOValphanov.com
Boosts innovation, optics, and lasers through research-industry collaboration, offering services, products, and technical facilities for companies and laboratories. |
93 | |||
| 12 |
i2S Innovative Imaging Solutionsi2s.fr
Development of turnkey vision systems combining optics, mechanics, electronics, software, and industrialization expertise for complete production solutions. |
85 | |||
| 13 |
Telecom Designtelecomdesign.com
Market leader in developing innovative IoT solutions for Smart Home Security and Aging Well industries, partnering with world-leading service providers for unmatched peace of mind |
83 | |||
| 14 |
eShardeshard.com
eShard specializes in analyzing and mitigating security risks in mobile and IoT devices to ensure product protection and customer trust |
47 | |||
| 15 |
TDMtdm-ing.com
Engineering expertise in electronic, software, mechanical, and industrial design for embedded video, audio, data acquisition, compression, encryption, and recording equipment. |
41 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Otonomy Aviationotonomy-aviation.com
Development of high definition entertainment cameras and embedded aircraft security systems with intelligent video motion analysis for aviation. |
41 | |||
| 17 |
Exosens | Lifescience & Environmentexosens.com
A leading provider of detection systems for OEM vendors specializing in Analytic SEM, STEM, Focused Ion Beam, Mass Spectrometry, and Semiconductor Metrology tools |
37 | |||
| 18 |
A puissance 3 (Ap3)apuissance3.com
Industrial instrumentation for hazardous environments, specializing in Atex products like digital probes, transmitters, and custom enclosures, ensuring safety and process control. |
29 | |||
| 19 |
AeroDIODEaerodiode.com
Expert manufacturer specializing in laser diode control electronics, optoelectronic systems, and pulse sequencers for industrial, medical, and scientific research applications worldwide. |
28 | |||
| 20 | 28 | ||||
| 21 |
SYMBIOSE SE2Dsymbiose-se2d.com
Specializing in industrial HMI parts development, our multidisciplinary team of technical experts excels in technology integration across the value chain |
25 | |||
| 22 |
Groupe Startec Energystartec-energy.com
A French group offering cutting-edge, custom-designed batteries, solar systems, secure solutions, converters, and displays for various applications, including mobile and stationary |
16 | |||
| 23 |
BLOOM LASERSbloom-lasers.com
A high-tech company founded in 2021 specializing in manufacturing high power visible and UV fiber lasers for precise micromachining applications |
15 | |||
| 24 |
Greenfield Technologygreenfieldtechnology.com
French engineering company specializing in high precision electronic and optical instrumentation for scientific, defense, and industrial applications including data acquisition systems and timing devices |
12 | |||
| 25 |
SPARK LASERSspark-lasers.com
Specializing in ultrafast laser technology for scientific and industrial use, offering high-quality products for various applications including biomedical imaging and neurosciences with outstanding service |
9 | |||
| 26 |
Muquans (now Exail)ixblue.com
Commercializing industry-grade quantum sensors based on laser-cooled atoms, developed from academic research, operated worldwide by non-specialists in diverse environments. |
8 | |||
| 27 |
Optikanoptikan.com
Redefining how industry and academia see, understand, and control matter by building next-generation see-through imaging systems. Enabling scientific and industrial dominance in inspection and process control. |
6 | |||
| 28 |
NLOPTICSnloptics.fr
Innovative photonics company providing advanced surface analysis solutions for the semiconductor industry and beyond, with micrometric precision and non-destructive analysis capabilities |
5 | |||
| 29 |
Perception manufacturingperception-manufacturing.com
Electronic product development and industrialization from concept to production, specializing in embedded systems and connected objects. |
5 | |||
| 30 |
BORDELAISE ELECTRONIQUEbe-etude.com
Specialized electronic design firm developing and enhancing products and systems across industries like industrial, security, energy, and military equipment since 2012 |
4 | |||
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
More company lists in the Gironde department
- The largest companies in the Gironde department 2,435
- Companies with in-house R&D in the Gironde department 225
- Retail chains in the Gironde department 217
- Multinational companies in the Gironde department 200
- Professional services firms in the Gironde department 151
- SaaS companies in the Gironde department 141
- Manufacturers in the Gironde department 137
- Software Development companies in the Gironde department 124
- Distributors and wholesalers in the Gironde department 115
- Public sector organisations in the Gironde department 109
- IT Services and IT Consulting companies in the Gironde department 105
- Family-owned companies in the Gironde department 104
- Hardware manufacturers in the Gironde department 100
- IT services companies in the Gironde department 99
- Consulting firms in the Gironde department 82
- Law Practice companies in the Gironde department 81
- Education providers in the Gironde department 80
- Financial services firms in the Gironde department 80
- Real Estate companies in the Gironde department 79
- Business Consulting and Services companies in the Gironde department 77
- Retail companies in the Gironde department 74
- Healthcare providers in the Gironde department 71
- Construction companies in the Gironde department 67
- Higher Education companies in the Gironde department 67
The same list elsewhere in France
- Electronics and semiconductor companies in France 846
- Electronics and semiconductor companies in Île-de-France 230
- Electronics and semiconductor companies in Auvergne-Rhône-Alpes 154
- Electronics and semiconductor companies in Occitanie 89
- Electronics and semiconductor companies in Provence-Alpes-Côte d'Azur 79
- Electronics and semiconductor companies in the Isère department 70
- Electronics and semiconductor companies in Grand Est 56
- Electronics and semiconductor companies in Nouvelle-Aquitaine 53
- Electronics and semiconductor companies in the Haute-Garonne department 49
- Electronics and semiconductor companies in the Bouches-du-Rhône department 45
- Electronics and semiconductor companies in the Essonne department 44
- Electronics and semiconductor companies in Brittany 38
- Electronics and semiconductor companies in Pays de la Loire 38
- Electronics and semiconductor companies in the Hauts-de-Seine department 35
- Electronics and semiconductor companies in Hauts-de-France 27
- Electronics and semiconductor companies in the Yvelines department 26
- Electronics and semiconductor companies in the Rhône department 25
- Electronics and semiconductor companies in Paris 54
- Electronics and semiconductor companies in Grenoble 28