Peer advisory · HNW networks · Investor networks
TIGER 21
Ultra-high-net-worth entrepreneurs, investors and executives with at least US$20 million in investable assets, many of them post-exit.
A profile page holds what the organization publishes and what named sources report: who it admits, what it costs, how it is structured, where it operates, and how it has changed. Every figure carries the date it was checked. A dash means the organization does not publish that fact.
Founding — Founded by Michael W. Sonnenfeldt with a single group of six entrepreneurs in New York City who had recently sold their businesses. The name is widely reported to stand for The Investment Group for Enhanced Returns in the 21st Century, which TIGER 21 does not state on the pages reviewed. Headquarters city reported by secondary sources; TIGER 21 does not state it on its about page.
TIGER 21 is a peer-advisory network for individuals with substantial personal capital rather than for operators of qualifying companies. Michael Sonnenfeldt founded it in 1999 with one group of six New York entrepreneurs who had recently sold their businesses, and it now reports more than 1,900 members in 162 groups across 54 cities. Members join a group of 12 to 15 peers that meets monthly, eleven times a year, in day-long sessions. The signature format is Portfolio Defense: each member presents a confidential account of their own investment portfolio and defends its construction to the group, and in later years may present on other subjects such as real estate, philanthropy, health, or life and legacy. Admission is tested against a published minimum of US$20 million in verifiable investable assets or qualifying net worth, and against four qualitative tests TIGER 21 calls the 5Cs. Dues are published and are the highest of any organisation in this batch: US$34,000 a year in North America, or US$51,500 for Family Office Groups.
How it works
Members are placed in a group that begins with five founding members and grows selectively to a maximum of fifteen. Groups meet monthly, eleven times a year, and each member presents a Portfolio Defense roughly annually. Annual dues cover the eleven regular meetings; there is also a national and global events programme.
Typical member
Members are wealth creators rather than salaried executives: current and former entrepreneurs, investment managers and senior executives, typically after a liquidity event, whose central problem has shifted from building a business to preserving and allocating capital.
Membership requirements
Requirements in detail, with history →Requirements are the tests the organization itself publishes — an age ceiling, a company-revenue floor, a net-worth minimum, a role. Where a figure straddles a range, the organization's own assessment decides. Local chapters can apply stricter tests than the published standard.
| Criterion | Published requirement | Provenance |
|---|---|---|
| Minimum investable assets | At least US$20,000,000 in verifiable investable assets or qualifying net worth | Verified September 2026High confidenceSource ↗ |
| Other criterion | The 5Cs: Character, Contribution, Capacity, Conditions and Capital | Verified September 2026High confidenceSource ↗ |
| Other criterion | Commitment to monthly meeting attendance and to not soliciting other members | Verified September 2026High confidenceSource ↗ |
Published criteria as verified on the dates shown. Final eligibility and admission decisions belong entirely to TIGER 21. See how you compare against these criteria →
Initiation fees are paid once on joining; dues recur. Chapter dues, retreats, travel and events are usually additional and are listed separately when the organization discloses them. Figures are as published or reported on the date shown — not quotations.
| Cost | First year | Three years | Provenance | |
|---|---|---|---|---|
| Annual duesa year | $34,000 | $102,000 | Verified September 2026High confidenceSource ↗ | |
| Annual duesa year | $51,500 | alternative tier, not added | Verified September 2026High confidenceSource ↗ | |
| Initiation feeonce | $5,000 | $5,000 | Verified September 2026High confidenceSource ↗ | |
| Estimated total, disclosed figures only | $39,000 | $107,000 | Not counted: Annual dues (alternative tier, not added). | |
Structure and programming
Where it operates
20 cities with a page on this siteTIGER 21 reports 162 chapters in total; those verified for major cities are listed here.
| Chapter or location | City |
|---|---|
| TIGER 21 Vancouver group | Vancouver |
| TIGER 21 Toronto group | Toronto |
| TIGER 21 Hong Kong group | Hong Kong |
| TIGER 21 Bengaluru group | Bengaluru |
| TIGER 21 Mumbai group | Mumbai |
| TIGER 21 Delhi group | Delhi |
| TIGER 21 Singapore group | Singapore |
| TIGER 21 Los Angeles group | Los Angeles |
| TIGER 21 San Francisco group | San Francisco |
| TIGER 21 Denver group | Denver |
| TIGER 21 Washington DC group | Washington |
| TIGER 21 Miami group | Miami |
| TIGER 21 Atlanta group | Atlanta |
| TIGER 21 Chicago group | Chicago |
| TIGER 21 Boston group | Boston |
| TIGER 21 New York group | New York |
| TIGER 21 Austin group | Austin |
| TIGER 21 Dallas group | Dallas |
| TIGER 21 Houston group | Houston |
| TIGER 21 Seattle group | Seattle |
Independent context
TIGER 21 is unusual among the organisations in this set for publishing both its financial bar and its dues, which makes it easy to price and easy to disqualify yourself from. Its orientation is the reverse of the CEO peer groups: the subject matter is the member's own balance sheet, not the company's operations, and the non-solicitation rule matters because a room of that composition is otherwise a sales target. The screening is more intrusive than most, with background checks and interviews, and the organisation states that clearing US$20 million does not guarantee admission. The commitment is real: eleven full-day meetings a year plus an annual portfolio presentation is a heavier load than a monthly forum. The published minimum was reportedly US$10 million before being raised to US$20 million, but TIGER 21 does not document when the change occurred.
Editorial analysis by Peer Group Guide editors. It is separated from the record above and follows the editorial policy.
Similar organizations
Alternatives, grouped by need →Appears in: Networks for US$10 million and above, by wealth band
History and changes
Site-wide change log →- milestoneFounded by Michael W. Sonnenfeldt with a single group of six entrepreneurs in New York City. ↗
- threshold changeMinimum investable assets reportedly raised from US$10 million to the current US$20 million. TIGER 21 does not document the change or its date; the earlier figure appears in trade… ↗
Milestones as published by the organization or reported by a named source. “Record” entries are changes to this site’s own record of the organization, kept in the public change log rather than overwritten.
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Sources
- TIGER 21, TIGER 21. Accessed 6 September 2026.tier 1
- Wealth Management and Preservation Groups — About Us, TIGER 21. Accessed 6 September 2026.tier 1
- TIGER 21 Locations, TIGER 21. Accessed 6 September 2026.tier 1
- Membership — TIGER 21, TIGER 21. Accessed 6 September 2026.tier 2
- Membership Requirements — TIGER 21, TIGER 21. Accessed 6 September 2026.tier 2
- Membership FAQs — TIGER 21, TIGER 21. Accessed 6 September 2026.tier 2
- Tiger 21 and IPI cultivate wealthy - for profit, InvestmentNews. Accessed 6 September 2026.tier 6
- Tiger 21: Millionaires Helping Millionaires, D Magazine (D CEO), July 2012. Accessed 6 September 2026.tier 6
Source tiers follow the published hierarchy: 1 official site · 2 official membership materials · 3 application documents · 4 annual reports · 5 government filings · 6 reliable business publications · 7 credible interviews · 8 other reputable secondary sources. Sources and data policy.
Is something wrong or out of date?
Represent TIGER 21? Verified representatives can submit corrections to fees, criteria, chapters and contact details, and add approved material. Submissions are reviewed by an editor and shown as organization-supplied; they never overwrite independent research.