A confidential peer board for wealth creators on preservation, family and legacy.
TIGER 21 is a peer membership organisation for wealth creators that acts as a personal board of directors for its members. Michael W. Sonnenfeldt founded it in New York in 1999, after a major liquidity event left him looking for objective advice on managing his wealth. He started with a single group of six entrepreneurs who had all sold their businesses. The current homepage reports 2,000+ members in 169 groups across 55 cities; these are membership/network figures, not payroll or investment AUM.
TIGER 21 is aimed at the principals behind family wealth rather than at family office staff. A principal who runs, or is considering, a single family office can use the group to test investment views and structural decisions with peers before acting. It does not replace the office's own advisors.
TIGER 21 is a peer network, a membership service rather than a discretionary investment mandate; peer discussions should not be treated as personalized regulated investment, tax or legal advice. It suits entrepreneurs who have had a liquidity event and want a structured peer board. The separate qualification page publishes substantive eligibility conditions, while no numerical membership fee was established in the reviewed pages.
Membership is by invitation after vetting against five criteria: character, contribution, capacity, conditions and capital. The official page requires verifiable investable assets or qualifying net worth of at least US $20 million, excluding personal-use assets. Meeting the wealth threshold does not guarantee admission; qualitative discretion, background checks and interviews also apply. Members commit to monthly meetings, confidentiality, non-solicitation, participation and transparency.
The member-experience page describes monthly, day-long meetings with 12–15 peers, alongside specialist networks, virtual sessions, global events and the T21 Connect app for content, messaging and event registration. 24/7 app access is not a 24/7 human advisory commitment. The homepage explicitly mentions local, family-office and virtual groups; confirm the appropriate group, chair, availability, programme terms, dues and any event charges with Membership Development before applying. Form location dropdowns and upcoming markets are not proof that a group is operating in every listed place.
The current About page confirms the existing operating leaders and lists additional member-experience/administrative leaders and external directors. BV Investment Partners representatives appear on the board; that association alone is not a complete current ownership table. Group chairs, members, testimonial speakers and external directors are not necessarily TIGER 21 employees. A principal may use peer discussion alongside their family office’s own professionals, without delegating fiduciary or diligence responsibility to the network.
Retained directory contacts and connections. locations: New York. Retained values are not proof of current offices, service availability or live/included connectors unless separately confirmed above.
The current qualifications page requires at least US $20 million in verifiable investable assets or qualifying net worth, excluding personal-use assets. Financial eligibility alone does not guarantee admission; interviews, checks and qualitative discretion apply.
Members commit to monthly meetings and confidentiality, non-solicitation, participation and transparency. The experience page describes day-long meetings with 12–15 peers, plus optional/global community activities.
No numerical dues were established in the reviewed official pages. Ask Membership Development for current membership, group, event and cancellation terms.
The member experience also includes Portfolio Defense: confidential disclosure of the member’s entire investment portfolio to the trusted peer group, with feedback on assets, liabilities, income and expenses. This is a substantive sharing commitment within the confidential group, not public disclosure or a guarantee of investment results.
Reviewed 3 November 2026. Peer community and network scale; Organisation history, operating team and directors; Membership wealth and participation qualifications; Monthly groups and member experience; Named TIGER21 personal profiles (indexed). Company descriptions are attributed; no private contract, live account, regulatory register or independent assurance report was inspected. Earlier captures remain explicitly retained.
Strengths. Large, international peer network of entrepreneurs; Structured, chaired groups rather than ad hoc networking; Published member allocation data.
Watch-outs. Invitation, wealth qualification, checks and qualitative admission discretion apply.; Monthly participation/confidentiality/non-solicitation obligations.; No numerical dues established in reviewed pages; peer learning does not replace professional advice..
Built for Private Wealth Owners / Principals.
Group Chairs and Membership Executives
Membership inquiry, wealth qualification, background checks/interviews and qualitative vetting; qualifying wealth alone does not guarantee admission.
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