Recognition & Excellence
Accreditations and certifications demonstrate our commitment to excellence, inclusion, and leadership. Each distinction validates rigorous standards, strengthens credibility, and fosters growth through ethical practices, continuous improvement, and equitable outcomes for our clients, employees, and communities.

A certified women-owned business is at least 51% owned, operated, and controlled by one or more women and has undergone a formal certification process to verify this status. Castle has held this distinction annually since 2003.

This certification allows Castle to provide services to state agencies, municipalities, public schools, and other entities under state-negotiated pricing and terms.

Castle is recognized by the Massachusetts Supplier Diversity Office for its commitment to diversity. Certification confirms that our business is at least 51% owned and controlled by eligible individuals and operates independently.

Castle is certified by the City of Boston's Department of Supplier Diversity for meeting criteria related to minority, women, and small-business ownership. This designation supports equitable access to city contracts and economic growth.

Castle has signed the 100% Talent Compact, committing to measurable actions that promote pay equity and address gender and racial wage gaps in Greater Boston.

Transformational DEI certification reflects our completion of a structured leadership program focused on strengthening diversity, equity, and inclusion practices across our organization.

SEPC certifies our knowledge of sustainability and social impact in event planning, including environmental performance and inclusive practices.

The CMP designation signifies excellence in meetings and events management, recognized globally as a mark of professionalism and industry expertise.

Castle is committed to sustainable event practices that support environmental stewardship, social inclusion, and economic resilience.

This certification demonstrates proficiency in LinkedIn’s advertising tools and strategies, including campaign creation, audience targeting, and performance optimization.

This credential recognizes expertise in Google’s measurement tools, including conversion tracking, data analysis, and campaign optimization.

The SHRM-CP designation signifies expertise in human resources practices and principles, recognized globally as a mark of HR knowledge, professionalism, and commitment to the field.