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NW Arbeitssicherheit Bau GmbH 

Basel · Since 2014

The core activity of NW Arbeitssicherheit Bau is to advise and support companies in optimizing safety, health and quality in the workplace, particularly on construction sites. The company develops safety concepts tailored to the specific conditions of each business and supports the implementation of legal requirements.

NxR Biotechnologies GmbH 

Basel · Since 2011

The core activity of NxR Biotechnologies GmbH is to advise and support companies, particularly in the biotechnology sector, in the development of business strategies, the search for partners, the implementation of innovations and the improvement of corporate performance. The company offers services such as business development, partnering, strategy consulting and market development to help companies successfully implement their projects and achieve their goals.

Nyfeler AG 

Basel · Since 1947

The core activity of Nyfeler AG encompasses the planning, design, assembly, and maintenance of metal structures, particularly in the areas of: metal hollow floors, cable trays, cable routes, custom constructions, railings, stairs, platforms, grid gratings, canopies, glazing, bicycle shelters, mailbox systems, pneumatic barriers, light shaft covers, barriers, protective profiles, maintenance, repairs, and refurbishments. The company offers these services primarily to discerning customers in sensitive spaces and areas.

Nyffeler Malergeschäft AG 

Basel · Since 2006

Nyffeler Malergeschäft AG is a painting company providing interior and exterior painting, façade work, restorations and decorative surface techniques. Its services also include bespoke colour and furnishing concepts, consultation, seamless surfaces and project delivery from planning to implementation.

Oberli Beteiligungen AG 

Basel · Since 2016

The company's core activity is advising and intermediating private equity transactions, including company sales and purchases, restructurings and financings, as well as developing strategies for institutional investors in the private equity sector, particularly with regard to asset allocation and rebalancing.

Obsequentia GmbH 

Basel · Since 2016

The core activity of Obsequentia is the certification of companies according to international management standards such as ISO 9001, ISO 14001, ISO 45001 and ISO 27001. The company provides audit, certification and consulting services to support companies in implementing and maintaining management systems.

OBT AG 

Basel · Since 2011

OBT AG provides fiduciary, audit and consulting services as well as IT solutions for SMEs, listed companies, public-law entities, foundations and associations. Its services include accounting and business advisory, statutory and voluntary audits, tax and legal advice, HR services and integrated IT solutions.

OctaveSoft GmbH 

Basel · Since 2004

The core activity of OctaveSoft GmbH is the provision of software engineering services, particularly in the area of software lifecycle, including project management, quality assurance, analysis, design, software development and maintenance. The focus is on specialized services for the pharmaceutical industry, such as AVEVA PI Historian projects, electronic batch record systems and automation integration.

Octonet GmbH 

Basel · Since 2020

The core activity of OctoNet GmbH encompasses the planning, installation, and maintenance of various technical systems, particularly: network installations (WLAN, cabling systems), communication platforms (telecommunications, VoIP telephony), TV and satellite systems (installation of cable television systems, satellite systems), intercom and door communication systems, security systems (burglar alarm technology, video surveillance, biometric access control), and "Smart Home" solutions. The company thus offers a wide range of services in the field of low-voltage installations.

OctoSwiss GmbH 

Basel · Since 2018

The core activity of OctoSwiss GmbH is the development, manufacture and marketing of pharmaceutical products, in particular medicines for the treatment of various diseases such as parasitic infections, bacterial infections, gastrointestinal disorders, respiratory diseases, hormonal disorders and other diseases. In addition, the company also offers advisory services and pharmacovigilance services.

Odd Fellow-Haus, Genossenschaft 

Basel · Since 1930

Odette Häfeli, good people tomorrow 

Basel · Since 2021

Odette Häfeli, good people tomorrow supports leaders and teams in organizational and change processes, providing coaching, mentoring, workshops and support for HR strategies and vocational-education projects.

Oekumenischer Verein für Altersfragen Bruderholz 

Basel · Since 1993

The company operates a retirement center that offers care and support for older people, including housing, catering, daily activities, church services and pastoral care.

Oe Moebel GmbH 

Basel · Since 2017

The company 'restemoebel' is engaged in the production and sale of furniture made from residual materials that arise during furniture production in carpentry workshops. The core activity of the company is the creation of value from waste materials through the production of small and large pieces of furniture, which are sold both online and in local stores.

Oettli Consulting 

Basel · Since 2022

Oettli Consulting provides IT services focused on information security, auditing and consulting. Services include ISO lead auditing, business process consulting and training workshops in information security.

Oettinger Davidoff AG 

Basel · Since 1959

The core activity of Oettinger Davidoff is the manufacture and distribution of handmade premium cigars and luxurious cigar accessories.

Offbeat Concert GmbH 

Basel · Since 2012

The company Offbeat Concert GmbH is primarily active in the organization and implementation of jazz concerts and festivals. It provides a platform for national and international jazz musicians to present their music to a wide audience. The company's core activity includes planning, organizing and implementing concerts, festivals and other musical events, as well as managing subscriptions, ticket sales and sponsorship partnerships.

Office Luis Bischoff GmbH 

Basel · Since 2023

The company's core activity encompasses the planning and design of spaces and objects in the fields of architecture, interior architecture, and product design. Specifically, this includes the development of: architectural projects, such as private homes, pavilions, conversions, and renovations; interior architecture projects, such as offices, restaurants, shops, and exhibition spaces; and product design, including furniture, lighting, doors, and other interior design elements. The company appears to specialize in designing spaces and objects for various application areas, ranging from residential and workspaces to exhibition and sales spaces.

OK Job AG, Zweigniederlassung Basel 

Basel · Since 2024

Oktant Plus AG 

Basel · Since 2016

Oktant Plus AG is a family-run architecture firm that combines craftsmanship with sustainable design. The practice handles projects from feasibility studies and hand-drawn planning to detailed models, project management, site supervision and turnkey delivery of residential buildings.

Olav Rohrer GmbH 

Basel · Since 2019

The core activity of Olav Rohrer GmbH is the planning, consulting and construction management of conversions, renovations and new buildings in the field of architecture.

Oliver Trifunovic Rasi T2RIFF 

Basel · Since 2017

The company's core activity is the development, manufacture and distribution of sustainable, multifunctional sports clothing for various sports and activities.

Olla Botanicals GmbH 

Basel · Since 2021

Olla Botanicals GmbH produces plant‑based skincare formulations containing organic full‑spectrum CBD and offers face, body and self‑care product ranges. The selection includes creams, balms and oils made from botanical ingredients and carries safety registrations and certifications.

Omescon GmbH 

Basel · Since 2023

Omescon GmbH provides consulting and implementation services for Manufacturing Execution Systems (MES), covering recipe design, MES lifecycle management, training and system integration. The company operates in sectors such as chemical and biotech and implements integrations between MES, ERP, DCS and automation platforms (e.g. Siemens, Rockwell).

ONCKY GmbH 

Basel · Since 2020

ONCKY GmbH is a consulting firm that provides growth strategy development, lead generation and strategic implementation services for SMEs. Offerings include a Growth Strategy Optimization Program, a Lead Generation Accelerator and Fractional CMO services.

oneX Modellierer GmbH 

Basel · Since 2022

The core activity of oneX is digital construction planning and consulting using the BIM methodology (Building Information Modeling). The company supports customers in the digital implementation of construction projects by developing and implementing energy-saving, environmentally friendly and cost-conscious solutions. The services include, among other things, the creation of digital models, the coordination of construction processes and consulting on the implementation of BIM projects.

OnlineReports GmbH 

Basel · Since 2004

OnlineReports GmbH operates an independent online news portal publishing news, reports and commentaries on topics such as politics, economy, culture and society. The site carries editorial content and states that its funding comes mainly from advertising and a research (Recherchier) fund.

onmedia AG 

Basel · Since 2021

onmedia AG plans, deploys and operates broadband networks with a focus on satellite systems, supporting customers in securing connectivity for special applications, temporary networks and high-reliability environments. The company also acts as an international aggregator, facilitator and distributor of electronic rights, managing acquisition, marketing and technical fulfilment for audiovisual content and video games.

Onvest AG 

Basel · Since 1995

The core activity of Onvest AG is asset management and structuring of financial products via the Smart Alpha platform. The company offers services such as product structuring, risk reduction and return enhancement. It collaborates with renowned market participants to offer innovative financial products and supports customers in launching and managing their products.

Open House Basel - Architektur für alle 

Basel · Since 2016

The company "Unternehmen Mitte" is an organizer of architecture events, particularly the Open House Basel, and offers guided tours and building visits. It is also active in corporate communications and event management.

Open Interactive GmbH 

Basel · Since 2008

The core activity of Open Interactive is the development and maintenance of web projects, particularly with the content management systems Craft CMS and Magnolia DXP. The company offers in-depth expertise for the tailored design and meticulous maintenance of web projects, including system customization, integration with other systems, and ensuring a high level of security.

OpenIRIS Association 

Basel · Since 2023

The company provides a platform for managing resources, access rights, and services. The core activity includes the development and provision of software solutions for managing complex organizational relationships, defining pricing models, managing appointments and resources, as well as supporting service requests and error tracking.

Open Tide GmbH 

Basel · Since 2023

Open Tide GmbH is a consulting and engineering firm that helps organizations optimize software engineering practices and assess the use of AI. It provides strategic software consulting, technology selection, process improvement, technological business transformation, and AI integration, with emphasis on software quality, reliability and developer experience. The firm serves sectors including cybersecurity, energy, aerospace, life sciences and insurance, and offers services in English, French and German.

OPTIMA machinery Switzerland AG 

Basel · Since 2024

OPTIMA machinery Switzerland AG designs and supplies packaging machines, filling machines and turnkey production systems for precise dosing, filling and packaging of liquid and solid products. The company also provides services including spare parts, maintenance, retrofit, installation, digital products and lifecycle support.

OPTIMAPHARM CRO Schweiz AG 

Basel · Since 2013

The core activity of Optimapharm is the conduct of clinical trials and the provision of services as a Contract Research Organization (CRO) for the pharmaceutical industry, particularly for pharmaceutical and biotechnology companies.

Opus Holzbau GmbH 

Basel · Since 2021

The core activity of Opus Holzbau GmbH is timber construction, specifically the planning and execution of construction projects using wood as the primary building material.

orange & teal GmbH 

Basel · Since 2020

orange & teal GmbH is a team of development professionals that provides project and programme design, technical advice, and evaluations for international development work. Their core expertise includes skills development, private sector development, entrepreneurship, social inclusion, gender equality, migration, rule of law, and governance.

Oren Kirschenbaum 

Basel · Since 2021

The company's core activity is the production of music videos, concert recordings, live streams and image films for artists and cultural institutions.

Orgelbau Klahre 

Basel · Since 2017

The core activity of Orgelbau Klahre is the construction and revision of organs, including traditional and modern, as well as electronic solutions.

Orgel- und Cembalobau B. Fleig GmbH 

Basel · Since 2017

The core activity of Orgel- und Cembalobau B. Fleig GmbH is the construction, restoration and maintenance of organs and historical keyboard instruments, including chest organs, house and practice organs, special instruments, church organs and harpsichords. The company also offers services such as rental instruments, revisions and restorations.

oriented.net GmbH 

Basel · Since 2004

The core activity of oriented.net GmbH is the provision of services in the field of information technology, particularly in the areas of: * Managed Open-Source Software * Linux servers * Web hosting * Network security * Virtual private servers (VPS) * Dedicated servers * Server housing * Cloud storage * Encrypted e-mail. The company also offers complementary services such as web development, graphic and corporate design, web authoring, and hardware sales.

FIX Treuhand AG 

Basel · Since 2014

The core activity of Orphanion AG is the provision of mail forwarding and mail domicile solutions for pharmaceutical companies, particularly with regard to fulfilling regulatory requirements of SWISSMEDIC and ethics committees. The company offers reliable and timely forwarding of mail to ensure compliance with deadlines and quality-assured processes.

OscarOne Basel GmbH 

Basel · Since 2019

OscarOne Basel GmbH operates a bar serving cocktails, a wide selection of gins and food offerings. The venue features signature cocktails made with homemade ingredients and hosts aperitifs and events.

OS-ELEKTRO OXE SERVICES & ELEKTRODIENSTLEISTUNGEN GmbH 

Basel · Since 2021

The core activity of OS-ELEKTRO OXE SERVICES & ELEKTRODIENSTLEISTUNGEN GmbH is the performance of electrical inspections and safety certifications for electrical installations, including: Periodic inspections, Independent final inspections, Safety certifications in accordance with the Low Voltage Installation Ordinance (NIV), Testing of electric vehicle charging stations, Equipment testing according to SNR 462638 standard, and Control of external lightning protection in accordance with VKF guidelines. The company offers these services to various customer groups, including private households, commerce, industry, and public institutions.

Ossian Health Economics and Communications GmbH 

Basel · Since 2008

The core activity of Ossian Health Economics and Communications is the creation of health economic analyses and the communication of value stories for pharmaceutical and healthcare companies. This includes, in particular: health economic modeling and analysis, cost-benefit analysis, creation of value messages for new products, communication of value before and after market launch, development of computer simulation models for the evaluation of health products, conduct of literature research and cost-benefit analysis, and creation of technical reports and manuscripts for scientific journals. The company supports its customers in demonstrating and communicating the value of their products, particularly in the areas of health economics, communication, and market access.

Ostro Minerals Schweiz AG 

Basel · Since 2006

Ostro Minerals Schweiz AG oversees the exploration, mining, processing and marketing of blue topaz from gemstone deposits. The company highlights transparency in its operations and collaborates with artists and partners on jewellery production and other uses of topaz.

Oswald Dillier, Modelle und Objekte 

Basel · Since 2002

The company's core activity is the creation of architectural models, construction models and exhibition models for architects, general contractors, museums and artists. The company also provides specialized consulting and problem-solving services in the field of model making.

OTB Consulting GmbH 

Basel · Since 2015

OTB Consulting GmbH provides consulting services for leaders, teams and organisations, focusing on organisational development, change and turnaround processes as well as strategic and operational leadership support. Services include consulting, data-based analysis, tailored information and project leadership for clients such as political authorities, public administrations, non-profit organisations and small and medium-sized enterprises.

OTP Holding AG 

Basel · Since 1996

OTP Holding AG provides HR consulting services for corporate and private clients, including outplacement/newplacement, assessments, executive and business coaching, as well as training and HR development. The company also supports restructurings and staff reductions, career management and change management, and serves as the Swiss representative of Career Partners International.

OTP Organisation & Training Partners AG 

Basel · Since 1993

OTP Organisation & Training Partners AG provides HR consulting services including outplacement/newplacement, assessment, executive and business coaching, training and HR development, and support for restructuring and change management.