2026-08-07T13:14:29-07:00 2025-12-31 204994635 Iryna AC 1000 Broadway Ste 200-C Oakland CA 94607 990 2025-01-01 464293324 OneReef Worldwide Stewardship ONER 4084752180 2625 Middlefield Rd Suite 252 Palo Alto CA 94306 Lida Teneva CEO 2026-08-07 true Kostyantyn Oreshkov EA P00923916 5104679506 2025 2025-03-06 01:10:19Z X Lida Teneva 2625 Middlefield Rd Suite 252 Palo Alto CA 94306 2332121 false X www.onereef.org X 2012 CA Partner with island communities to combine traditional stewardship and modern resources to protect coral reefs. 9 6 8 7 0 1905069 2296932 0 7589 35189 1591 0 1914249 2332121 17087 1560 0 1013409 1136389 0 484101 1577959 2009536 2608455 3147485 -694206 -815364 2821329 2038333 32465 64833 2788864 1973500 OneReefs mission is to ensure healthy ocean ecosystems and thriving coastal communities across the Pacific. false false 2294104 1560 OneReef has 3 main priorities: 1) invest in place-based stewardship in Micronesia by helping communities manage marine protected areas, restore mangroves, strengthen fisheries management, empower women, invest in youth learning traditional ocean knowledge, and monitor the health of coastal ecosystems;2) invest in people by training early-career environmental leaders in conservation practice, nonprofit management, project development, budgeting, reporting, grant writing, communications, and leadership skills; 3) invest in institutional capacity by supporting government agencies and local organizations with infrastructure, equipment, training, and connections to sustainable conservation financing. In 2025, OneReef delivered measurable impact at scale across the Pacific. The organization supported 59 communities across 7 countries, helping safeguard approximately 918,627 acres of marine areas and reaching more than 91,559 people directly and indirectly. Through the MiCOAST initiative and related programs, over 600 individuals were directly engaged in activities such as fisheries management, with 50 staff from partner organizations trained in gender equity and social inclusion, and 11 farmers trained in mariculture producing more than 5,000 rabbitfish. OneReef also strengthened on-the-ground capacity through improved ranger safety and operations, infrastructure investments such as patrol vessels and station upgrades, and expanded youth engagement and community outreach programs. In parallel, ecological monitoring and long-term studies showed significant gains in reef health, including doubling of fish abundance in Pohnpei over a 10 year period, demonstrating tangible progress toward improved ocean health and human well-being. 2294104 true true false false false false false false false false false false false false false true true false false true true true false false false false false false false true false false false false false false false false false false false false false true true false false false true 10 0 true 8 true false true FM false false false false false 0 false false false false false false false X 9 6 false false false false false false false true true false true true true true true true true true true true false CA X X X Ann Cannella 4084752180 2625 Middlefield Rd Suite 252 Palo Alto CA 94306 Christopher LaFranchi President 40.00 0.00 X X 214700 0 8019 Ann Cannella Dir. Finance 40.00 0.00 175000 0 15295 Donna Chandra Dir. Strategy 40.00 0.00 175000 0 4093 Martin Romain Dir. Programs 40.00 0.00 132729 0 15223 Nicole Yamase Dir. Monitoring 40.00 0.00 130000 0 4550 Patty Azzerello Board Member 1.00 0.00 X 20000 0 0 Lida Teneva CEO 40.00 0.00 X X 15833 0 0 John Dawson Board Chair 10.00 0.00 X X 0 0 0 Judy McNary Treasurer 1.00 0.00 X X 0 0 0 Igor Korneitchouk Board Member 1.00 0.00 X 0 0 0 Jeff Leppo Board Member 4.00 0.00 X 0 0 0 Nicole Christian CEO 1.00 0.00 X 0 0 0 Liz Parissenti Board Member 1.00 0.00 X 0 0 0 863262 47180 5 false true false Paul Avenant dba Utopia 851 Fisher St Unit E Houston TX 77018 Interim COO 118000 1 35843 2261089 2296932 0 35189 35189 0 0 0 0 0 0 0 0 2332121 35189 X 0 0 1560 1560 0 627940 166986 234150 226804 0 383761 194279 15664 173818 12264 6253 6011 14509 10977 3435 97 97915 42737 26961 28217 0 0 63731 14201 49530 0 0 0 1339465 1311540 6144 21781 5842 483 239 5120 148978 145998 2454 526 29851 20724 6027 3100 0 24000 24000 330038 310378 6105 13555 0 41561 38146 1273 2142 0 0 0 18269 15943 2326 Dues and other charges 7801 5842 1355 604 0 3147485 2294104 369280 484101 667539 112496 430803 1646460 350000 100000 33940 0 0 0 0 0 7461 6019 0 1293386 171358 0 0 0 38200 2000 2821329 2038333 32465 64833 32465 64833 X 524817 1030528 2264047 942972 2788864 1973500 2821329 2038333 -815364 X false true X true false X 1496914 1743400 3552637 1905069 2296932 10994952 0 0 1496914 1743400 3552637 1905069 2296932 10994952 5752658 5242294 7402 137 2027 7589 35189 52344 0 0 11047296 0.47450 0.47660 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED X 2379874 47753 47753 2332121 2332121 3195238 47753 47753 3147485 3147485 Part X : FIN48 Footnote The Organization is a not-for-profit organization that is exempt from federal income tax on income under Section 501(c)(3) of the Internal Revenue Code and from state franchise tax under California Revenue and Taxation Code Section 23701 (d). However, income from activities not directly related to its tax-exempt purpose is subject to taxation as unrelated business income. There was no tax on unrelated business income for the year ended December 31, 2025. true East Asia and the Pacific 1 12 Grants and Program Services Financial and tech. support 790598 1 12 1 12 790598 790598 3 2 false false false false false false Part I, Line 2 - Grantmakers Explanation For Monitoring Use of Funds Outside US Grants received in the US are deposited in OneReef's bank account. For restricted and unrestricted grants, cash is disbursed when activities are planned, a supporting budget is prepared, and the management reviews and approves the budget. Part I, Line 3f - Method of Accounting Accrual Part I, Line 3f - Investments and Expenditures 100% Expenditures X X X X false false false false false false false false false Ann Cannella Dir. Finance 175000 4325 10970 190295 Christopher LaFranchi President 214700 7515 504 222719 Donna Chandra Dir. Strategy 175000 2950 1143 179093 Form 990, Part VI, Section B, Line 11b A draft of the 990 is first submitted to the CEO, then the entire Board. Form 990, Part VI, Section B, Line 12c All board members are required to complete the conflict of interest form annually and the Director of Finance reviews for any incomplete or noted conflicts. Any identified conflicts are then brought to the boards attention. Form 990, Part VI, Section B, Line 15a The Board Governance Committee, not including the CEO, developed a compensation recommendation based primarily upon market specific data provided in an extensive compensation survey from the organization Fair Pay, but also taking into account the CEO's experience, the complexity of OneReef and the performance of OneReef. The compensation recommendation was provided in writing to the full Board, and a quorum of the Board, with the CEO recused, voted on and approved the CEO's compensation. Later in 2026, the CEO's compensation was amended through a similar process.The same process is used for all officers and key employees whose compensation is subject to review. Form 990, Part VI, Section C, Line 19 Available upon request. OneReef Microneisa E-Box 401704 Koror PS 96940 Conservation activities PS OneReef Worldwide Stewardship true false false false false false false false false false false false false false true true false false false false