CONSERVANCY OF THE SEA ISLANDS

Financials

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

Address and contacts

Address (IRS master file)

660 FRESHFIELDS DRIVE SUITE 200, JOHNS ISLAND, SC 29455-5479

In care of

% DONNA T WINDHAM

Principal officer (990 for 2025)

Kim Anuszkiewicz, 130 Gardners Circle PMB L, Johns Island, SC 29455

Signed the 990

Kim Anuszkiewicz, Chair

Phone

(843) 768-2029

Website

www.kiawahconservancy.org

Return prepared by

Glaser and Company LLC

Mission

The Kiawah Conservancy provides the vision, leadership and resources necessary to preserve and enhance Kiawah Island's unique balance of nature and development. We are an independent, research driven non-political, not-for-profit organization.

Program accomplishments

• The Organization currently maintains 85 properties and conservation easements totaling over 3,876 acres in the Sea Islands region covering Johns Island, Kiawah Island, and Seabrook Island, South Carolina. The organization maintains these owned properties and conservation easements for the expressed purpose of keeping land in their natural, undeveloped state for perpetuity. The organization has stewardship responsibility for all conservation properties including the maintenance of established nature trails, native plant demonstration gardens, and demonstration rain gardens outfitted with educational signage.(See Schedule O)The Organization has been accredited by the land trust accreditation commission since February 16, 2017, with its accreditation renewed in 2023. This important distinction independently confirms that the organization continually operates according to the highest standards in land conservation and nonprofit management. In particular, it assures that the organization fulfills its responsibility to conserve its land and easements in perpetuity.The Organization's habitat improvement plan aims to consistently support Sea Island property owners in creating and maintaining optimal habitat that sustains the regions current and future wildlife. The Organization, working in concert with other entities on Johns, Kiawah, and Seabrook Islands, offers resources, landscaping guidance, access to qualified professionals, and assessment tools to help property owners implement this plan.
  Expenses $1,253,725
• The Organization supports and conducts numerous research studies to deepen understanding of the natural environment on Johns Island, Kiawah Island, and Seabrook Island, South Carolina, while advancing its broader mission.Bird Banding The Kiawah Island Banding Station (KIBS) is supported by the Kiawah Conservancy and operated by the Town of Kiawah Island. Annual banding and monitoring efforts include:(See Schedule O)Fall Migration MonitoringFall migration monitoring began in 2009 at the west end of Kiawah Island. In 2015, an additional station was created at the East End of Kiawah Island on Little Bear Island, a property held under conservation easement by the Kiawah Conservancy. Mist nets are operated by the Town Wildlife Biologist and seasonal. The nets are operated daily from mid-August through November. They are opened 30 minutes before sunrise and closed approximately six hours later.Groundwater Table StudyThis long-term study was initiated in 2019 to monitor groundwater conditions on Kiawah Island. A series of 24 groundwater monitoring wells were installed and will continue to be monitored and utilized overtime, with data being compared alongside other non-invasive subsurface monitoring devices to create a map of the groundwater table and develop annual water budgets for the Sea Islands region. The study is being conducted by the Kiawah Conservancy in collaboration with the Town of Kiawah Island, the College of Charleston, and the Kiawah Island Community Association. Marsh Vulnerability StudyThe project initiated efforts to monitor the tidal marsh wetlands surrounding Kiawah Island by mapping historical changes of the vegetated shorelines, built structures, and various plant communities within the marsh. Coordinated by the Kiawah Conservancy in partnership with the Town of Kiawah Island and the College of Charleston, the initiative has established a foundation for ongoing study. The Kiawah Conservancy continues this work by expanding upon the original dataset, providing updated information at no cost to municipal governments and regional partners to support informed marsh management and planning. Resilience ProjectThis project explores the use of nature-based solutions to enhance resilience for both human and wildlife communities on Kiawah Island. Through stakeholder engagement, it identifies viable practices and addresses barriers to implementation in support of long-term coastal resilience. The initiative received federal support through the National Fish and Wildlife Foundation via the Emergency Coastal Resilience Fund 2019. A key outcome of the project is the Nature-Based Solutions Manual for Kiawah Island, which highlights strategies such as stormwater mitigation and marsh restoration. Ongoing monitoring and research continue to inform future resilience efforts, including the implementation of restoration and enhancement projects within the watershed that deliver broad public benefits.Ecological Health InitiativeThe Ecological Health Initiative focuses on identifying key indicators across each habitat on Kiawah Island for targeted research and monitoring, with the goal of building a comprehensive understanding of overall ecosystem health. The framework developed through this effort guides the Kiawah Conservancy's research, monitoring, and restoration efforts. The Conservancy produces an annual report and community presentation that assess ecological health and track changes over time through year-to-year comparisons. Findings from this work inform regional planning efforts to address environmental and natural resource challenges, including the development of local marsh management and watershed-based plans.
  Expenses $236,869
• The Organization develops, publishes, and distributes educational materials, maintains an active social media presence, and manages its website to advance understanding of the importance of preserving the natural environments of Johns, Kiawah, and Seabrook Islands. These outreach efforts engage a broad audienceincluding property owners, visitors, businesses, associations, governments, partner organizations, and other conservation organizationsto promote informed stewardship across the region.(See Schedule O)ROOTS, the Kiawah Conservancy's annual magazine, is distributed to all supporters and highlights key initiatives, upcoming educational opportunities, and ongoing conservation and preservation efforts that support the Organization's mission. In addition, the Kiawah Conservancy produces a wide range of brochures, booklets, and other publications to further support and communicate its work.
  Expenses $61,470

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

IRS record

EIN

58-2359979

Tax-exempt status

501(c)(3): Charitable, religious, educational or scientific organization

Foundation status

Publicly supported organization (170(b)(1)(A)(vi))

Donations deductible (Pub 78)

Public charity, 50% deduction limit

Exempt since

1998

Accounting year ends

December

Files

Form 990 or 990-EZ

Category (NTEE)

Environment (C340)

Assets (IRS master file)

$5,291,033

Income (IRS master file)

$2,531,042

Filing history

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 58-2359979).

Questions about CONSERVANCY OF THE SEA ISLANDS

What is the EIN of CONSERVANCY OF THE SEA ISLANDS?

The employer identification number (EIN) of CONSERVANCY OF THE SEA ISLANDS is 58-2359979.

Is CONSERVANCY OF THE SEA ISLANDS tax-exempt?

Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1998.

Are donations to CONSERVANCY OF THE SEA ISLANDS tax-deductible?

Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).

Which annual return does CONSERVANCY OF THE SEA ISLANDS file?

Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.

When is the next return of CONSERVANCY OF THE SEA ISLANDS due?

The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.

When did CONSERVANCY OF THE SEA ISLANDS last file with the IRS?

The latest return in the IRS public files is the 990 for the year ended December 2025.

Who is the principal officer of CONSERVANCY OF THE SEA ISLANDS?

The 990 for the year ended December 31, 2025 names Kim Anuszkiewicz.

Who are the officers and directors of CONSERVANCY OF THE SEA ISLANDS?

The 990 for the year ended December 31, 2025 lists 33 people; 2 received compensation from the organization, the highest $145,250 (Donna Windham, Executive Director).

How much revenue does CONSERVANCY OF THE SEA ISLANDS have?

On its 990 for the year ended December 31, 2025 it reported revenue of $2,352,150, expenses of $1,964,300 and total assets of $5,291,033 at year end.

Other nonprofits in JOHNS ISLAND

• SEABROOK ISLAND GREEN SPACE CONSERVANCY
  EIN 57-1090055 · last filed 990 for 2025
• SEABROOK ISLAND NATURAL HISTORY GROUP
  EIN 57-0810383 · last filed 990-EZ for 2025
• ST JOHNS WATER COMPANY INC
  EIN 57-0620187 · last filed 990 for 2025
• SEABROOK ISLAND PROPERTY OWNERS ASSOCIATION
  EIN 57-0600562 · last filed 990 for 2024
• CHARLESTON COLLEGIATE SCHOOL
  EIN 57-0524957 · last filed 990 for 2025
• HABITAT FOR HUMANITY INTERNATIONAL INC
  EIN 57-0840667 · last filed 990 for 2025
• BARRIER ISLANDS FREE MEDICAL CLINIC INC
  EIN 20-5628911 · last filed 990 for 2025
• OUR LADY OF MERCY COMMUNITY OUTREACH SERVICES
  EIN 57-0905488 · last filed 990 for 2025

All nonprofits in JOHNS ISLAND · South Carolina · Environment