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ISO 20121 Readiness for a Corporate Event Series

An anonymised example of ISO 20121 readiness support for a corporate multi-event series. The focus was consistent governance, standard supplier requirements and repeatable evidence capture to reduce claims risk and simplify reporting.

Overview

  • Client type: Corporate events team

  • Event type: Multi-event series (internal and external stakeholder events)

  • Frequency: 8-12 events per year

  • Typical scale: 80-600 attendees

  • Scope: ISO 20121 readiness support (policy set, supplier standards, evidence pack, reporting template, light team training)

Why it mattered

Corporate event teams are increasingly expected to demonstrate strategic impact, governance and credible sustainability outcomes. In a multi-event series, risk typically comes from inconsistency: different internal owners, agencies, venues and suppliers create uneven standards and fragmented documentation. This increases claims risk, makes reporting time-consuming, and can undermine stakeholder confidence.

Methodology

A pragmatic ISO 20121-aligned framework designed for repeatability. The focus was to define a single operating model that could be applied across event formats without creating unnecessary administration: clear roles and approvals, standard supplier requirements, and a simple evidence capture process that works at pace.
 

What was standardised (examples)

  • A single set of minimum supplier standards used across venues, catering, AV, print and logistics

  • A repeatable evidence pack structure for every event (so documentation is consistent, even when suppliers change)

  • A simple data capture sheet to collect the same core inputs every time (materials, waste, travel assumptions, supplier confirmations)

  • A consistent approach to sustainability communications and claims sign-off (to reduce greenwashing risk)

Delivery process

  • Series discovery: map event types, owners, suppliers and existing processes

  • Governance model: define roles, approvals and decision points (RACI-style)

  • Policy set: concise policies fit for a corporate series (procurement, waste, travel, accessibility and inclusion, communications and claims)

  • Supplier standards: minimum requirements, evidence requests and briefing notes for venues, catering, AV, print and logistics

  • Evidence pack build: a repeatable folder and template structure for each event (brief, supplier evidence, data capture, approvals)

  • Data capture plan: what to collect and when (materials, waste, travel assumptions, supplier evidence)

  • Reporting template: consistent format for internal leadership and external stakeholders

  • Light training: short onboarding for event owners and key suppliers to improve adoption

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Quick wins

  1. Appoint one evidence owner for the series (single point of accountability)

  2. Use one supplier briefing template across all events (minimum standards + evidence requests)

  3. Create a repeatable event pack: run-of-show, supplier checklist, data capture sheet and debrief notes

Outcomes

  • A consistent operating model applied across multiple events, even with different internal owners and suppliers

  • Reduced claims risk through standard supplier requirements, evidence requests and a clear sign-off approach for sustainability statements

  • Faster reporting through repeatable templates and a consistent core data set (less time spent chasing information post-event)

  • Clearer internal accountability and fewer last-minute escalations due to defined roles, approvals and decision points

  • A scalable approach that supports future tenders, governance expectations and stakeholder scrutiny

Lessons learned

Consistency is achieved through standard supplier briefings and a repeatable evidence pack, not by adding complex tools. Adoption improves when templates are short, role-owned and embedded into existing event workflows.

Practical tip

  • If the series includes multiple event owners, keep the “must-do” requirements small and non-negotiable (supplier standards, evidence pack, data capture sheet, claims sign-off). Everything else can remain flexible by event type.

Ealing Broadway

London, W5 3NH

Company number 16242824

Tel: +44 796 0285 402

sabrina@greenplanify.com

©2025 by Green Planify

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