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Located in Brussels and Antwerp, Sia has been delivering top-tier consulting capabilities in Belgium since 2005. Our Belgium team brings together 120+ experienced consultants, with a well-balanced mix of Dutch- and French-speaking professionals, all focused on creating tangible value for our clients.

We provide end-to-end support, from strategy to operations, across Strategy & Management Consulting, Transformation, and Data Strategy & Science, leveraging innovation, advanced analytics, and Artificial Intelligence. Our key sectors include Banking & Insurance, Industry & Manufacturing, Energy & Utilities, Transport, Mobility & Logistics, Retail & FMCG, Life Sciences & Healthcare, and Telecommunications & Technology, and we also support organizations in the public sector and beyond.

What sets Sia apart in Brussels and Antwerp is our ability to combine deep local insight with the strength of a global network, delivering pragmatic, high-impact solutions tailored to industry-specific challenges. We build innovative and digital capabilities through design thinking, and we harness data and technologies to drive performance and unlock new growth opportunities. We are strongly committed to sustainability, corporate responsibility, and positive societal impact, helping clients develop circular economy value streams, define low-carbon strategies, and deploy Industry 4.0 initiatives.

Our clients recognize our expertise in building digital, data-driven, and environmentally friendly roadmaps—while also supporting the transformation of culture, organization, and governance frameworks. We emphasize agility, client-centricity, continuous innovation supported by strong R&D investment, and we work side-by-side with client teams to innovate, implement change, and deliver lasting results.

Working at Sia means joining a well-balanced team that actively promotes diversity and inclusion, and collaborating with brilliant colleagues committed to excellence, entrepreneurship, and innovation. To find out more about our recruitment opportunities in Belgium, please consult our offers or email recruitment.be@sia-partners.com.

Our capabilities

We turn data into actionable insights and scalable solutions—through advanced analytics, AI, and data-driven decision-making.

We help leaders define clear strategies and translate them into pragmatic execution plans that drive measurable performance.

We optimize sourcing and procurement to deliver sustainable value—cost, risk, and supplier performance—while strengthening governance and processes.

Meet our team

What our experts say

energy

Research and Report

State of play of European​ Capacity Mechanisms​

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Opportunities for waste management from solar and…

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Redefining Customer Experience: Sia’s 2025…

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Offices

    • Brussels

    • Brussels

      Boulevard de Waterloolaan, 16 1000 Brussels

      Phone. : /

    • Antwerp

    • Spaces Nieuw Zuid

      Michel de Braeystraat, 52 2000 Antwerp

      Phone. : /

Contact our Belgium Office

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