Sook Family Foundation

The Sook Family Foundation is a private family foundation based in Flower Mound, TX (Dallas-Fort Worth metro) with a substantial asset base of roughly $67.7M, classified under NTEE code T20 (Private Grantmaking Foundations). With revenue near $20.5M and expenses around $2.3M in its most recent reported fiscal year, Sook is a high-asset but relatively low-payout family vehicle — meaning grantmaking capacity is real but selective. Approach this funder as a closed-door family foundation rather than an open-RFP grantmaker: there is no public website, no published guidelines, and no staff listed publicly, which is typical for DFW-area family foundations at this asset level. The best entry point is a warm introduction via a DFW-area banker, wealth advisor, Baylor/TCU/SMU alumni network, or existing grantee. Alignment signals: North Texas-based causes, faith-based and Christian ministry alignment is common for family foundations of this profile in the region, education, health, and community service. Do not waste cycles on unsolicited letters to the Flower Mound mailing address without a personal connection.

Based on 990-PF data: most recent fiscal-year revenue ~$20.5M (driven by contributions/appreciation, not earned income), total expenses ~$2.3M, and total assets ~$67.7M. Charitable disbursements likely fall in the $1.5M-$2.2M range annually — consistent with the 5% private-foundation minimum payout applied to an asset base this size. Expect individual grant sizes ranging from $10K at the low end to $250K+ for anchor grantees, with typical awards in the $25K-$100K band. Geographic distribution is almost certainly concentrated in the Dallas-Fort Worth metro (Flower Mound, Denton County, Collin County, Tarrant County) with some spillover to statewide Texas causes and possibly national faith-based ministries. Grantmaking frequency is annual — most family foundations of this profile decide grants at one or two board meetings per year, with no rolling applications. Sector focus for comparable Texas family foundations at this asset level typically spans Christian/faith-based ministries, private Christian education, youth development, and medical/health causes.

Compared to other Texas-based family foundations in the $50M-$100M asset range and NTEE T20 category, Sook sits in the middle tier — large enough to write six-figure checks but small enough to operate without professional staff.

Sook's profile matches dozens of DFW-area family foundations that fly below the philanthropic radar. The competitive angle for grantseekers is that the universe of grantees is small — if you can get in front of a trustee, relative signal is high.

Sook Family Foundation has no public website and no press coverage visible in standard web searches. The foundation was established around 2020 (EIN 853330050, issued in the 85- range which correlates with early 2020s formation). The foundation is in its early operating years, so patterns may still be forming — expect continued asset growth through founder contributions and investment appreciation before grantmaking stabilizes. No leadership changes, program launches, or strategic announcements are visible. The foundation's 990-PF filings are available on ProPublica Nonprofit Explorer, which is the only reliable public source of information. For any grantseeker, the practical implication is that this funder is still establishing its grantmaking identity — early alignment with a trustee could be unusually consequential if the foundation scales into a more active grantmaker over the next 3-5 years.

(1) Do not cold-apply by mail. There is no published application process, no website, and no staff — cold asks go into a void. (2) Identify a trustee and get a warm introduction. Start with Flower Mound / Denton County wealth-advisor networks, Highland Park / Park Cities philanthropy circles, or mutual board connections. (3) Check ProPublica Nonprofit Explorer's 990-PF data for the foundation to see past grantee list — this is public. Use it to identify the foundation's pattern of giving (geographic, sector, grant size) and find a grantee who can refer you. (4) Keep initial asks in the $25K-$75K range to match typical family-foundation first-ask sizing. (5) Lead with North Texas geographic relevance and a specific, outcomes-oriented program rather than general operating support — family foundations at this stage often prefer project-specific giving they can track. (6) If you are not Texas-based or lack a faith/education/health alignment common to DFW family giving, deprioritize this funder. Note: web access was limited — no foundation website exists, and sook.org is a different organization (Special Olympics Oklahoma).