"Machines don't buy from machines, people buy from people."
Sheilla Madeleine Vestergaard De Siqueira
About De Siqueira Consulting
International expansion is not only about markets, it is about people, culture, and informed decisions.
De Siqueira Consulting is an international business consulting firm dedicated to helping companies expand successfully into new markets. We support organizations navigating the complexity of international market entry, business development, and cross-border growth, with a strong focus on practical execution and long-term value creation.
Our Background and Experience
De Siqueira Consulting was founded in 2015 to bridge the gap between strategic planning and real-world international execution. With hands-on experience working across Europe and Latin America, we understand the challenges companies face when entering unfamiliar markets.This background allows us to provide insights that go beyond theory and reflect the realities of operating internationally.
Our Approach
We believe that successful international expansion requires clarity, structure, and trust. Our consulting approach is built around close collaboration with our clients, ensuring that strategies are realistic, actionable, and aligned with business objectives.Our role is to act as a strategic partner — not just an external advisor.
Cross-Cultural and Market Insight
One of our core strengths is our deep understanding of cross-cultural business dynamics. Cultural differences, communication styles, and local business practices can significantly impact international success.
Why Clients Choose De Siqueira Consulting
Clients work with us because they value:
- Our international experience combined with strategic insight
- Our pragmatic, hands-on consulting style
- Our honest advice and transparent communication
- Out long-term thinking focused on sustainable growth
Our success is measured by our clients’ ability to operate confidently and effectively in new markets.
About the founder
Sheilla have many years of experience as Business developer and Market manager working within the South America and South Europe Markets. Through her background she knows the culture, it’s in her blood, but more important she possess solid competency in international business and negotiations with customers and suppliers within an international and multicultural environment.
Europe
Jimmy Abel Nielsen
Junior Market & Business Development Consultant
Market Entry (EU)
Jimmy Abel Nielsen has five years of international, travel-based experience in customer facing roles within the marine and poultry processing industries. He has advised customers on purchasing and maintenance decisions, worked directly with management, and led on-site teams while coordinating across suppliers, customer organizations, and internal stakeholders.
He has delivered clear status reporting to decision makers and supported structured execution in complex, multi-party environments. Jimmy is currently completing the AP Degree Programme in Marketing Management at the University College of Northern Denmark (UCN).
At De Siqueira Consulting, he supports market analysis, market development, and sales and marketing activities, contributing to structured outreach and execution-focused commercial work. He supports South American producers in establishing a foothold in Europe by mapping markets and channels, identifying and qualifying buyers, supporting positioning and pricing, and driving disciplined follow-up to convert initial interest into long-term commercial relationships.
Used to working internationally, Jimmy approaches different cultures and business environments with respect and values clear agreements, structure, and long-term partnerships
Our Strategic Network
South America
Our services in South America are supported by a strategic network of experienced companies and professionals.
Rogério R. Macedo
Lead Welding Automation Specialist
Welding Automation
Rogério R. Macedo is a Welding Technologist with a postgraduate degree in Production Engineering and over 25 years of experience in the metal-mechanical industry across Latin America. In 2006, he founded Weldspray Consulting LLC, initially to represent the Canadian company Gullco International, promoting welding automation equipment in the region. Under his leadership, Weldspray has grown into a well-established representative of leading manufacturers throughout Latin America, supported by a strong network of international welding distributors. The company also provides specialized consulting and technical training services, staying closely aligned with the latest technological developments through continuous team training and close collaboration with manufacturers, distributors, and end users.
Marcello Franchi
Agribusiness Business Developer Mechanization & Precision Farming
Marcello Rodrigues Alves Franchi is an Agronomist graduated from ESALQ-USP, with a postgraduate degree in Project Management and extensive experience in agribusiness as an Agro Business Developer. He built a significant part of his career as a researcher at a research foundation, where he developed and led projects focused on agricultural mechanization, precision agriculture, and innovation in the field. Currently, Marcello also serves as a strategic consultant at GeoMec – Research and Consulting, contributing technical and business-driven solutions that enhance efficiency, sustainability, and competitiveness in agricultural operations.
