Commitment, community, and a truck.

Leading a company with thousands of employees across the globe requires more than a clear vision, swift decisions and a steady hand. It takes courage, curiosity, and never losing sight of the people behind the success. On an extraordinary journey from Ukraine to Texas, Katherine Tuluzova has built her leadership on heart, determination, and a strong belief in the power of everyone. Get to know Sigma Software's new CEO in this interview for the Danir Yearbook 2025.

Sometimes it doesn’t take much for chance to cause a fairly big change and push you onto a new path. A path where your talents make it possible to excel in a new direction, ending up in a place where education, aptitudes, interests and expertise come together. A colleague’s comment on Catharina’s ability to notice the slightest nuance in colours became her push. Get to know surface materials specialist Catharina in this interview for the Danir 2025 Yearbook.

Sweden takes a significant step toward the future of autonomous mobility. Sigma Technology has developed a Steer-by-Wire simulator—a breakthrough platform that enables automakers to safely test and validate intelligent vehicles and Drive-by-Wire control systems.

Sigma Technology IT Group has signed a framework agreement with the National Board of Health and Welfare (Socialstyrelsen in Swedish) for the delivery of expert consulting services. Under this agreement, Sigma Technology can provide specialist expertise to the agency to meet growing civil defense demands.

Amelie Olsen, Unit Manager at Sigma Technology Informatics Solutions, has been named IT Woman of the Year in the Linnaeus Region. The award was presented at a ceremony at PM & Vänner in Växjö on November 26.

Sigma Technology is collaborating with Telia, RISE, the Swedish Transport Administration (Trafikverket), Svevia, and Halmstad University in an innovation project CyberInfra aimed at reducing dangerous roadwork-related accidents.

For the 13th consecutive year, Universum has recognized Sigma Technology Group among Sweden’s Best Employers, securing a prestigious Top 2 position in 2025. This achievement marks the company's continued commitment to fostering a workplace that values authenticity, inclusivity, and individuality.

Sigma Technology has signed a new framework agreement with Norske tog, the state-owned company responsible for purchasing, adapting, and managing trains in Norway. Following a national procurement process, Sigma Technology was awarded two key areas: Master Data and Document Control, as part of a larger initiative to strengthen technical advisory services for the country’s entire train fleet.

Safety by Cilia approached Sigma Connectivity with a vision — to create a wearable safety accessory that empowers women through design and technology. Together, they have developed a discreet product that combines form, function, and purpose -designed to give women greater freedom and security in their everyday lives.For Cissi Nilsson, founder of Safety by Cilia, ...

Sigma Energy & Marine AS is strengthening its presence on the Norwegian west coast by appointing Christian W. Berg as the new General Manager in Stavanger. At the same time, the company is moving into new, modern offices at Fjordpiren in Jåttåvågen – marking the next step in its growth strategy for the Norwegian offshore market.

WiTech, Kronoberg’s first women’s tech network, has appointed Amelie Olsen, Unit Manager at Sigma Technology Informatics Solutions, as its new Chairwoman. At the same time, Sigma Technology renews its commitment as main sponsor — further strengthening its focus on gender equality and inclusion in the tech industry.

Sigma Embedded Engineering is launching a new company in Poland to strengthen its delivery capacity and foster collaboration with international customers. The focus will be on development within areas such as automotive technology, medical devices, and industrial IoT solutions. The goal is to have around 30 employees engaged in assignments within the first year.

Sigma Technology Group is a global technology consultancy with operations in Sweden, Hungary, Norway, Kosovo, Germany, and Ukraine. We work with world-leading companies, seeking partners with the expertise and capacity to drive improvement and harness innovation. To support our clients’ R&D and strategic projects, we offer cross-industry expertise and flexible delivery models, specialising in product information, software, embedded systems, digital solutions, and IT infrastructure. Our approach combines local presence with global reach, tailoring services to meet each client’s needs.

Sigma Connectivity is a global design house and development partner specialising in IoT, MedTech, CleanTech, consumer products, and production technology. Founded in 2013, we have grown into a company of more than 600 co-workers across 13 locations worldwide. Our culture is built on three simple principles: Engage, Create, Deliver. We engage deeply with our customers, create with passion and technical excellence, and always deliver value. As part of the Danir Group, we combine entrepreneurial drive with long-term commitment – proving that no industry is too complex to connect.

Sigma Industry East North comprises eight engineering consulting companies, from Linköping in the south to Luleå in the north. We offer a comprehensive portfolio of tailored engineering services to meet the needs of modern industry – and drive progress within the sector. We value long-term customer relationships, with quality and service always at the forefront, while blending warmth and fun with a stimulating, growth-focused work environment. Our services are provided through our subsidiaries: Sigma Industry East in Linköping and Norrköping; Evolve in Uppsala; Innovation in Eskilstuna and Örebro; North in Luleå and Umeå; Services in Västerås; and Development, Smart and Spark in Stockholm.

We offer technical consulting services in product and production development to industrial companies across a range of sectors in southern Sweden. By working long-term with both our employees and customers, we create flexible, tailored solutions together. Built on close relationships and committed collaboration, our operations adapt quickly to new needs and challenges. From early product concepts and development to full-scale production and specialised engineering, we are constantly evolving, applying our expertise to new business areas.

Sigma Software Group is one of the world’s top 100 IT services companies, according to IAOP, and has been featured in CNBC and The Times. We have delivered smart IT solutions since 2002 and continue to drive innovation with a portfolio of 25 products and over 20 services. With expertise in aviation, automotive, and defence, our 2,000 experts across 21 countries serve more than 200 clients. As members of professional associations like APECSYS, we help businesses worldwide create robust security management systems aligned with high international standards.

Nexer is a global full-service provider that drives technological development and digitalisation for businesses and society. Through our strategic capabilities, technical expertise, and communication skills, we create value for our customers in a digital world. We combine entrepreneurial spirit and long-term partnerships with cutting-edge skills in future-focused areas such as AI, machine learning, advanced analytics, embedded engineering, cloud, and cybersecurity.

A Society operates in a consulting market that evolves gradually, in step with the needs of people and organisations. Our vision, “A Society powered by freedom”, is about creating opportunities for consultants to grow on their own terms – professionally, personally, and together with their clients. With over 20 years’ experience matching the right skills to the right assignments, we help consultants build lasting relationships, sustainable careers, and future-ready solutions. Through their success, we grow organically – with more specialists on assignment and more professionals finding their dream projects through A Society.

PION Group strengthens the competitiveness of individuals and companies through strategic talent solutions in staffing, recruitment, and consulting services. We operate under the brands Uniflex, Poolia, and QRIOS. Our vision, “A world where people matter – powered by tech”, permeates the way we work: combining technology and expertise to deliver quality, scalability, and long-term value. PION Group is listed on Nasdaq Stockholm, Small Cap, and we build our future on organic growth and a clear customer focus.

Aptio Group helps companies execute, interpret, and navigate regulatory and industry-specific requirements in tasks and processes. These requirements can be found in both legislation and various standards. We work cross-functionally, addressing issues across all business processes, including production, product development, research, testing, and procurement. Founded in Malmö in 2017, Aptio Group has been an independent part of the Danir Group since 2021. We engage around 240 people across four offices in Sweden, Denmark, and Switzerland.

Thanda Group spans luxury hospitality, real estate development, and conservation, offering experiences that are as immersive as they are memorable. Guests can explore Thanda Safari, a 16,500-hectare Big Five reserve in South Africa, escape to Thanda Island, an exclusive-use private island off the coast of Tanzania, or cruise along the French Riviera aboard the classic vintage yacht Over the Rainbow of London. Across all locations, dedicated local teams ensure service of the highest calibre. At the heart of everything lies a commitment to creating extraordinary experiences while leaving a lasting positive impact.