Managing Principal, Cybersecurity and GRC Services / Chief Information Security Officer
Trevor Butler
Trevor Butler is a senior executive and strategic advisor with Tantus bringing more than 25 years of public-sector leadership experience spanning municipal government, post-secondary education, information technology, and cybersecurity. As Managing Principal, Trevor leads Tantus’ Cybersecurity and Governance, Risk, and Compliance (GRC) practice, providing executive-level advisory services to clients across the public and broader mid-market sectors.
Trevor brings extensive experience in cybersecurity governance, enterprise and technology risk management, IT and cybersecurity assessments, privacy and regulatory compliance, and secure digital transformation. He works closely with senior leaders to help organizations establish accountability, manage cyber and privacy risk, and build resilient, defensible security program aligned to their operational, regulatory, and strategic objectives.
Intermediate Consultant
Natalie Austin-Rwibutso
Natalie is an intermediate consultant with Tantus with more than 10 years of experience in technical and leadership roles within the UK Government, spanning cybersecurity, cloud services, and cross-government digital strategy in complex, regulated environments.
She has led initiatives in cyber and technology risk management, coordinated security and governance strategies across multiple organizations, applied cloud-native technologies to enhance organizational security capabilities, and advised senior stakeholders on aligning security controls with operational and regulatory requirements. Her work has focused on translating technical risk into clear, actionable guidance for decision-makers, supporting effective governance and investment prioritization.
With a strong foundation in technical strategy, stakeholder engagement, and requirements development, Natalie contributes to the design resilient, coherent cybersecurity and GRC programs that enable secure, innovative, and sustainable digital environments.