Insights

Niche Philanthropy Independent nonprofit practice focused on multigenerational advising and family philanthropy, presenting an opportunity to tailor fundraising and donor engagement solutions to high-net-worth families and family offices.

Small Firm Scale Team size of 11-50 employees suggests agility and potential openness to scalable, high-impact services such as streamlined CRM, marketing automation, and digital engagement platforms for donor campaigns.

Tech Stack Fit Existing use of LinkedIn Ads, HubSpot Analytics, and ActiveCampaign indicates receptiveness to marketing automation, donor segmentation, and attribution analytics—opportunities for advanced analytics and campaign optimization.

Revenue Growth Potential Revenue under $1M signals room for strategic services that unlock larger donor pipelines, multi-generational engagement programs, and premium advisory offerings to expand client footprint.

Strategic Partnerships Distinct focus on families and wealth advisors suggests potential partnerships with high-capacity wealth management firms, foundations, and family office networks to co-create training, facilitation, and fundraising programs.

Similar companies to 21/64

21/64 Tech Stack

21/64 uses 8 technology products and services including LinkedIn Ads, HubSpot Analytics, Microsoft Clarity, and more. Explore 21/64's tech stack below.

21/64's Email Address Formats

21/64 uses at least 1 email format:
21/64 Email FormatsExamplePercentage
First@2164.netJohn@2164.net
100%

Frequently Asked Questions

What is 21/64's official website and social media links?

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21/64's official website is 2164.net and has social profiles on LinkedIn.

How much revenue does 21/64 generate?

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As of October 2026, 21/64's annual revenue is estimated to be <$1M.

What is 21/64's SIC code and NAICS code?

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21/64's SIC code is 8399 - Social Services, Not Elsewhere Classified and NAICS code is 8132 - Grantmaking and Giving Services.

How many employees does 21/64 have currently?

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As of October 2026, 21/64 has approximately 14 employees across 1 continents, including North America. Key team members include Consultant: B. T. R. Explore 21/64's employee directory with LeadIQ.

What industry does 21/64 belong to?

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21/64 operates in the Philanthropic Fundraising Services industry.

What technology does 21/64 use?

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21/64's tech stack includes LinkedIn Ads, HubSpot Analytics, Microsoft Clarity, WordPress, Shopify, Microsoft 365, ActiveCampaign and AfterPay.

What is 21/64's email format?

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21/64's email format typically follows the pattern of First@2164.net. Find more 21/64 email formats with LeadIQ.

When was 21/64 founded?

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21/64 was founded in 2002.
21/64 logo

21/64

Philanthropic Fundraising ServicesNew York, United States11-50 Employees

21/64 is an independent nonprofit practice that provides advisory, facilitation, and training services focused on multigenerational engagement within family philanthropy and family enterprises. The firm works with families that manage funds, foundations, or other wealth structures, as well as wealth and philanthropy advisors, to help multiple generations coordinate governance, giving, and service more effectively. It is based in New York City, New York. 

Positioned within the philanthropic fundraising services sector, 21/64 offers specialized support to families and their professional advisers seeking to align long-term leadership and charitable activities across generations. The organization operates as a focused practice with a relatively small to mid-sized team, delivering structured advising, facilitation, and training for next-generation engagement.

Section iconCompany Overview

Website
2164.net
SIC Code
8399 - Social Services, Not Elsewhere Classified
NAICS Code
8132 - Grantmaking and Giving Services
Founded
2002
Employees
11-50

Section iconFunding & Financials

  • <$1M

    21/64's revenue is estimated to be in the range of <$1M

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