Winterthur Museum, Garden & Library

Nonprofit profile at a glance

EIN
510066038
IRS 990 coverage
2009–2024
Official website data refreshed
Sep 2026
Forms available
Form 990 2024, Form 990-T 2024
Location
Wilmington, DE, US
Phone
800.448.3883
Rating
83
Verdict
STRONG
Rating confidence
Moderate
Sector
Art Museums

Official website

Reported finances

Revenue
$63,522,418
Expenses
$30,823,789
Assets
$469,717,386
Liabilities
$6,740,732

Source: IRS Form 990. Selected filing: tax year 2024. Amounts in USD.

Leadership & pay

61 people listed

Highest reported compensation

  • Mr Christopher D Strand (Charles F. Montgomery Dire): $337,933 total reported compensation
  • Ms Jennifer M Mackey (Dir.-Development (until 10/24)): $267,353 total reported compensation
  • Mr Kirk Trasborg (Chief Financial Officer an): $255,526 total reported compensation

Source: IRS Form 990. Selected filing: tax year 2024. Names and roles reflect this filing, not necessarily current officeholders.

Overview

Mission

To inspire exploration of American culture and landscapes through compelling stories and experiences.

What it reported doing in 2024

Public Visitation and Exhibitions: Winterthur welcomed more than 130,000 visitors to the museum, estate, and gardens, Major exhibitions and large-scale public events, including Transformations: Contemporary Artists at Winterthur and the annual Artisan Market highlighted both the historic collection and the work of contemporary artists. Attendance growth was supported by a robust calendar of exhibitions, family programs, and community events, as well as strong participation in free and subsidized offerings.In September 2024, Winterthur hosted its annual Discover Winterthur event, during which admission was waived and visitors were invited to experience a wide range of programs across the property. Fifteen community partners participated by hosting informational tables, nearly 1,300 individuals attended.Winterthur also emphasized contemporary artistic practice through Transformations: Contemporary Artists at Winterthur, an exhibition featuring artists inspired by the museum's collection and gardens. In addition, the annual Artisan Market in July 2024 showcased 110 working artists, awarded grants to three artists, and attracted more than 6,500 visitors, reflecting continued year-over-year growth and strong public interest.Seasonal family programming further extended Winterthur's reach. During July and August 2024, Terrific Tuesdays offered significantly discounted admission for families with children, paired with hands-on activities across the estate. These same activities were also delivered free of charge to low-income childcare centers through outreach visits, ensuring that children unable to travel to Winterthur could still benefit from our educational resources.

Operating model

Revenue model
Mixed. Its operating money came from several sources; no one source provided a clear majority.
Distribution model
Direct operator. The filing allocates 98% of reported program-service expenses outside its grant, affiliate-payment, and member-benefit lines. This expense classification does not rule out separately announced grant awards.
  • Includes noncash contributions: Reported contributions include donated property or goods.

The verdict

STRONG - A large share of available resources goes toward mission work and the filed numbers largely add up. The filing reports few safeguards for money sent abroad and fundraising costs are high for each dollar raised.

Rating breakdown

  • Financial Efficiency: 82
  • Transparency & Controls: 77
  • Accountability: 100
  • Sustainability: 85
  • Growth: 60

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 100%; rating input score 100
  • Program expense ratio: 76.7%; rating input score 77
  • Fundraising efficiency: $2.48 raised per $1 spent on fundraising; rating input score 8; 8th percentile among comparable filings

Transparency & Controls

  • Consistency checks: 100%; rating input score 100; 68th percentile among comparable filings
  • Pay-setting controls: 5 of 6 controls in place; rating input score 83
    • Compensation committee: Pass
    • Independent consultant: Missing
    • Other Form 990s reviewed: Pass
    • Written employment contract: Pass
    • Compensation survey or study: Pass
    • Board or committee approval: Pass
  • Foreign activity oversight: Scored; rating input score 0
  • Grant itemization coverage: 100%; rating input score 100; 77th percentile among comparable filings
  • Major donor itemization: Yes; rating input score 100
  • Related-party transparency: Limited

Accountability

  • Independent voting board: 100%; rating input score 100; 77th percentile among comparable filings
  • Governance controls: 9 of 9 controls in place; rating input score 100
    • Conflict-of-interest policy: Pass
    • Whistleblower policy: Pass
    • Document-retention policy: Pass
    • CEO compensation review process: Pass
    • Other executive compensation review process: Pass
    • Form 990 shared with the board: Pass
    • Board meeting minutes documented: Pass
    • Audit committee oversight: Pass
    • Independent financial-statement audit: Pass

Sustainability

  • Operating margin: 51.5%; rating input score 96; 96th percentile among comparable filings
  • Total-asset coverage ratio: 15.24; rating input score 94; 94th percentile among comparable filings
  • Liabilities to assets ratio: 0.01; rating input score 94; 94th percentile among comparable filings
  • Officer compensation ratio: 7.3%; rating input score 7; 7th percentile among comparable filings

Growth

  • Program expense growth: -0.5% per year; rating input score 0; 6th percentile among comparable filings
  • Revenue growth: 6.6% per year; rating input score 100; 57th percentile among comparable filings
  • Asset growth: 1.6% per year; rating input score 100; 13th percentile among comparable filings

Details

  • What they do: 6 programs and campaigns described on the official site · 1 operating location identified
  • Where the money goes: 100% of revenue deployed · 76.7% of spending went to programs
  • Governance: 34 of 34 board members independent · 9 of 9 filing controls reported
  • Programs: 3 filed program accomplishments · $23.6M in reported program spending
  • Leadership: top reported pay $338K · 61 people listed · 5 of 6 pay-setting controls reported
  • Highest-paid contractors: 5 contractors listed · $1.3M reported
  • Consistency: 41 of 41 current checks pass
  • Schedules: 9 filed schedules · includes major donors, foreign activity, grants, and executive pay
  • Filing history: 16 filing years from 2009 to 2024
  • Contacts: How to reach this organization
  • Money network: 13 filed money-flow records
  • Related organizations: 1 filed related-organization link
  • Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
  • People: Everyone the filings name, and which of them the filings identify by more than a name.
  • Staff and benefit plans: Retirement and health plans the organization files with the Department of Labor, and the people in them.

Key Signals

Signals prioritize questions for review. They are not findings of misconduct.

  • High — Transparency & Controls: Foreign activity oversight scored 0/100.
  • High — Financial Efficiency: Fundraising efficiency scored 8/100.
  • High — Growth: Program expense growth scored 0/100.
  • High — Sustainability: Officer compensation ratio scored 7/100.