
RSB – Roundtable on Sustainable Biomaterials is a global, multi-stakeholder organisation dedicated to driving the truly sustainable development of the bioeconomy. Frequently recognised as an industry leader in supply chain sustainability, RSB applies its best-in-class sustainability framework across sectors including aviation, chemicals, materials, and shipping.
Our small, dedicated team operates remotely from countries around the world, working collaboratively with a diverse base of member organisations, industry partners, and policymakers. For more information, please visit www.rsb.org.
RSB now invites eligible firms and individuals (“Consultants”) to indicate their interest in providing the Services described below. This Call for Expressions of Interest is not yet linked to a specific project or immediate assignment. RSB is building a pre-approved External Consultant Roster: a qualified pool of selected specialists and organisations that will be called upon for project-based work for the next 2-3 years.
We are primarily seeking to engage consultancy firms, agencies, and other established organisations, providers that can offer dedicated capacity, depth of expertise, and continuity across assignments. At the same time, we warmly welcome expressions of interest from independent consultants and other individual specialists whose qualifications and experience match the profiles sought. Throughout this document, “Consultant” refers to both firms and individuals unless stated otherwise.
Consultants accepted onto the roster will complete a brief onboarding process to become familiar with RSB’s systems, ways of working, and sustainability framework, so that engagements can begin efficiently when a relevant need is identified. When a specific project or capacity gap emerges, RSB will contact roster members whose profile best matches the assignment, share a defined scope of work, and invite them to submit a proposal.
Inclusion on the roster is an expression of readiness and fit and not a guarantee of immediate work or remuneration.
The Sustainable Bio-Materials & Regulatory Compliance Consultant will provide regulatory compliance and sustainability assessment expertise for bio-based materials, sustainable fuels, feedstocks and related value chains. Consultants in this profile support RSB Advisory Services with the expert practical interpretation of regulatory frameworks, such as EU RED, CORSIA and relevant voluntary certification requirements, including their GHG calculation methodologies. They support feedstock eligibility, low-ILUC considerations, sustainability-risk screening, voluntary scheme benchmarking and compliance gap identification.
Role purpose: To provide RSB with flexible, project-based technical capacity for assessing whether bio-based materials, fuels, feedstocks and supply chains meet applicable regulatory and voluntary sustainability requirements. The role helps RSB and its clients translate complex rules into defensible assessments, calculations and compliance pathways, particularly where GHG data quality, feedstock eligibility, certification readiness or regulatory interpretation are central to the assignment.
Full or partial coverage: Applicants are eligible whether they wish to cover the full scope or only a clearly defined subset of the technical areas and task requirements described below (partial coverage), based on their knowledge, skills and capabilities. Partial coverage applicants are encouraged to submit their candidacy as well.
Confidentiality: Due to non-disclosure and confidentiality commitments within RSB Advisory Services, specific project-related work cannot be attached to or disclosed in this call.
Specific deliverables, estimated time input, and project duration will be clarified in the Terms of Reference (TOR) issued to shortlisted roster members when a project need is identified.
Methodologies, blueprints and decision tools for innovative sustainability assessments
Working with RSB offers the opportunity to contribute to a globally recognised organisation at the forefront of sustainability and systems transformation.
· Meaningful, mission-driven work: Contribute to advancing sustainability standards and real-world impact across global value chains, influencing how industries operate and evolve.
· Flexible, high-impact assignments: Participate in intellectually engaging, project-based work that allows you to apply your expertise to real-world challenges.
· Opportunity for ongoing collaboration: Consultants on the roster may be engaged on multiple assignments, fostering longer-term professional relationships with RSB.
Submission deadline: 24 October 2026
Type of Engagement: Project-based (as required) with an overarching Framework Agreement
Preferred Provider Type: Independent consultants and individuals, firms, agencies, and established organisations.
Remuneration: Agreed day rate
Location: Remote
Framework Agreement Duration: Until September 2028 [2 years], unless a Consultant or RSB request removal or changes to Framework Agreement.
Working Hours / Time Zone: CET ±4 hours time-zone compatibility, unless otherwise agreed for a specific assignment (minimum 4 hours per day overlapping with CET working hours).
Roster Launch: November 2026
RSB is committed to fostering diversity and inclusion across all its work. We strongly encourage expressions of interest from individuals and firms representing underrepresented groups, including, but not limited to, women, persons from the Global South, persons with disabilities, and members of other historically marginalised communities. We believe that diverse perspectives strengthen the quality and relevance of our work.
Applicants must disclose any actual, potential, or perceived conflict of interest at the time of expression of interest and throughout the engagement. A conflict of interest exists where the Consultant has personal, professional, or financial relationships that could impair objectivity or create unfair advantage.
RSB operates a zero-tolerance policy with respect to fraud, bribery, corruption, and any other form of misconduct. All Consultants are expected to adhere to the highest ethical standards and to comply with applicable anti-corruption laws. Any breach may result in immediate termination and referral to relevant authorities.
To be considered for inclusion on the RSB External Consultant Roster, Consultants should submit the following:
Later in the submission process. RSB will request further information to confirm shortlisted Consultants as trusted providers as part of our due diligence process:
Several consultant types are listed separately on our website. You are welcome to submit expressionf of interest to multiple listings if you meet the respective requirements.

The Roundtable on Sustainable Biomaterials (RSB) a collaborative network of global organisations advancing the just transition to a net-positive world.
Leveraging its diverse range of over 150 organisations across multiple supply chains, regions and industries, RSB has developed a globally recognised and trusted sustainability framework that provides the most rigorous foundation for supporting innovative solutions to the triple planetary crisis.
RSB uses this foundation to develop projects, new knowledge and practical solutions that equip key decision-makers, all over the world, to deliver positive impacts for people and the planet.