Comparison · 14 material differences
ACG vs Institute of Directors
This comparison was generated on request from the records. It carries no editorial verdict and is not indexed. The published comparisons are listed on the compare page.
Read down each column for one organization, across a row for the difference. A bronze mark at the left of a cell means the organizations differ on that row. A dash or “not published” means the organization does not disclose the fact; it is not a zero.
What the records say
- Maximum age at joining: ACG: Reduced young-professional rates are limited to first-time members aged 35 and under; Institute of Directors: No published maximum age at joining.
- Role or title: ACG: No published role or title; Institute of Directors: IoD member tier: "For practising executive and non-executive directors or equivalents in the private, public and third sectors".
- Geographic restriction: ACG: No published geographic restriction; Institute of Directors: International tier: "For practising executive and non-executive directors or equivalents based overseas".
- Annual dues: ACG: Dues are set by each chapter, so the amounts above are examples rather than a national schedule.; Institute of Directors: £494 a year.
Side by side
| ACG | Institute of Directors | |
|---|---|---|
| Profile | ||
| Type | Professional association | Professional association |
| Founded | 1954 | 1903 ("The IoD has been at the heart of business since its formation in 1903. The Royal Charter, awarded in 1906, charged the IoD with promoting free enterprise, lobbying government and setting standards for corporate governance.") |
| Headquarters | Chicago, United States | London, United Kingdom |
| Geographic footprint | 61 local markets worldwide, grouped into seven regions (Canada, Central, Europe, Great Lakes, Northeast, Southeast, West); most chapters are in North America, with chapters in Austria, Germany, the Netherlands, Spain and the United Kingdom | Regions and branches across England, Wales, Scotland and Northern Ireland, plus an international membership tier and international events; the members' premises and workspace are at 116 Pall Mall, London |
| Members | 14,000as of September 2026 | 20,000as of September 2026 |
| Chapters | 61 | The IoD organises members into regions and nations (England, Wales, Scotland, Northern Ireland) and Special Interest Groups rather than numbered chapters; no chapter total is published. |
| Primary audience | Middle-market mergers and acquisitions professionals: private equity investors, corporate development officers, lenders, investment bankers, lawyers, accountants and advisers, plus PE-backed CEOs | Practising executive and non-executive directors in the private, public and third sectors in the UK, plus aspiring directors and directors based overseas |
| Typical member | Members come from corporations, private equity firms, lenders and professional service firms working on middle-market transactions. ACG reports that 75% of members say they have done business with another member. Specialist networks exist for corporate development officers, family offices, PE-backed CEOs, operating partners, women and young professionals. | Practising executive and non-executive directors or equivalents, ranging from start-up founders to directors of multi-million pound businesses and senior civil servants. Associate membership covers aspiring directors, former directors and those who work closely with directors; a student tier covers students. |
| Qualification | ||
| Maximum age at joining | Reduced young-professional rates are limited to first-time members aged 35 and underApplies to discounted categories only (for example ACG New York's Forward membership, available for a maximum of two years); standard membership has no age limitverified September 2026 · source ↗ | No published maximum age at joining |
| Role or title | No published role or title | IoD member tier: "For practising executive and non-executive directors or equivalents in the private, public and third sectors"Uses the post-nominal MIoDverified September 2026 · source ↗ |
| Geographic restriction | No published geographic restriction | International tier: "For practising executive and non-executive directors or equivalents based overseas"Also uses the post-nominal MIoDverified September 2026 · source ↗ |
| Invitation required | No | No |
| Sponsor required | No | No |
| Application process | Applicants pick a chapter using ACG's chapter locator and join or renew through the central portal at my.acg.org. There is no published interview, sponsorship or committee review; payment of chapter dues completes membership. A member referral programme exists but referral is not required. | Prospective members choose a tier and join online; there is no interview, sponsor requirement or financial vetting. A free registration option gives access to sample resources without membership. Corporate memberships are arranged by contacting the IoD directly. |
| Selectivity | Not publicly disclosed: ACG publishes no acceptance criteria or rejection data, and membership appears to be open to anyone working in middle-market M&A who pays chapter dues | Not applicable in the usual sense: membership is open to directors, aspiring directors and those who work closely with directors, and the IoD publishes no acceptance rate. Selectivity applies to the separate Chartered Director qualification rather than to membership. |
| Cost | ||
| Annual dues | Dues are set by each chapter, so the amounts above are examples rather than a national schedule. | £494 a yearIoD member tier (UK directors): "£494 year / £44.46 month (fixed 12 month period)". Monthly instalments are available for full membership only.verified September 2026 · source ↗ |
| Initiation fee | Not publicly disclosed: no separate initiation fee was found; the first-year rate is higher than the renewal rate at some chaptersverified September 2026 | Fees are published openly. The IoD is an HMRC-approved professional body, so UK members may be able to claim tax relief on the fee where membership is essential for their job and the employer did not pay it. Training and qualifications, including the Chartered Director programme, are charged separately. |
| Local chapter dues | $725 a yearACG New York standard membership, first yearverified September 2026 · source ↗ | Fees are published openly. The IoD is an HMRC-approved professional body, so UK members may be able to claim tax relief on the fee where membership is essential for their job and the employer did not pay it. Training and qualifications, including the Chartered Director programme, are charged separately. |
| Membership term | Annual, renewed through the chapter | Annual, with monthly instalments available for full membership over a fixed twelve-month period |
| Structure | ||
| Meeting frequency | More than 1,200 events a year across the network; individual chapters typically run monthly or more frequent programmes, plus national conferences including DealMAX | Regional and national events, online events, Special Interest Group events and signature events including the Director of the Year Awards |
| Peer forums | No confidential peer forums; members organise through chapters and seven cross-chapter specialist networks (corporate development officers, family offices, PE-backed CEOs, operating partners, Women of ACG, young professionals) | No confidential peer forums; members join Special Interest Groups and regional communities, and can be matched through IoD Mentor Connect |
| Confidentiality | Could not be independently verified: no published confidentiality policy was found | Not publicly disclosed. Members are subject to the IoD Code of Conduct for Directors and member rules made under the Royal Charter. |
| Time commitment | Not documented | Not documented |
| Organized as | Chapter-based, Event-focused | Chapter-based, Event-focused, Clubhouse premises |
| Confidential peer forums | Partial | Partial |
| Local chapters | Yes | Yes |
| Virtual membership | No | Partial |
| Online community | Partial | Partial |
| Member directory | Yes | Not documented |
| Events | Yes | Yes |
| Programming | ||
| Educational programming | Partial | Yes |
| Leadership development | Partial | Yes |
| Retreats | No | No |
| Travel | No | No |
| Family programming | No | No |
| Spouse and partner programming | No | No |
| Next-generation programming | Yes | Partial |
| Investment discussions | Yes | No |
| Investment opportunities | Yes | No |
| Philanthropic component | No | No |
| Networking emphasis | High | High |
| Social emphasis | Medium | Medium |
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Sources
Drawn from the sources listed on each page: ACG · Institute of Directors