Philanthropy, Voluntarism & Grantmaking Foundations nonprofits in New York
Philanthropy, Voluntarism & Grantmaking Foundations nonprofits in New York. Browse 11,995 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- Latriset Foundation
EIN 393348505 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Latvian Assoc Daugavas Vanagi Asv Inc
EIN 352150897 · Headquarters: Penfield, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Laughter Saves Lives Foundation Inc
EIN 453482707 · Headquarters: Bellmore, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Laura Bencivenga Foundation Inc
EIN 853950166 · Headquarters: LONG BEACH, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Laura L Adams Foundation Inc
EIN 161608372 · Headquarters: BUFFALO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Laura Lemle Family Foundation
EIN 516576020 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Laura Steinberg Tisch Foundation Inc
EIN 311641039 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Laurance S Rockefeller Charitable Trust C/o Rockefeller Trust CompanyNA
EIN 133618404 · Headquarters: New York, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-PF
- Laurel Hill Foundation
EIN 237037750 · Headquarters: New York, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Lauren Cramer Private Foundation
EIN 311705315 · Headquarters: WOODBURY, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Laurence a Hoch Foundation Inc
EIN 650485435 · Headquarters: PLATTSBURGH, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Laurence and Carolyn Belfer Family Foundation C/o Belfer Management
EIN 137208162 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Laurence I Kimble Tuw Xxx6433
EIN 166528309 · Headquarters: PITTSFORD, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990
- Laurie and Joseph Klinow Foundation
EIN 262032944 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Laurmarlyn Foundation
EIN 134025863 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF
- Lavelle Fund for the Blind Inc
EIN 131740463 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lavie Shterna Popack Family Foundat
EIN 810841301 · Headquarters: Brooklyn, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lavori Sterling Foundation Inc
EIN 134067505 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lawrence & Elizabeth Krulik Foundation C/o Richard Krulik
EIN 133731987 · Headquarters: NORTHPORT, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lawrence & Susan Daniels Family Foundation
EIN 043494212 · Headquarters: New York, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Lawrence and Frances Jordan Foundation
EIN 266681610 · Headquarters: AMSTERDAM, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lawrence and Marilyn Kaplan Foundation
EIN 113545707 · Headquarters: SYOSSET, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lawrence B Taishoff Foundation
EIN 471041189 · Headquarters: GARDEN CITY, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lawrence Charitable Foundation
EIN 311709120 · Headquarters: LAWRENCE, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lawrence M Gelb Foundation Inc C/o Sharron Norman
EIN 136113586 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lawrence R Ellis Jr Foundation
EIN 222945489 · Headquarters: AUBURN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- Lawrence S Huntington Fund
EIN 133985928 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF
- Lawrence S Mayers Fund Inc
EIN 136089967 · Headquarters: LAKE SUCCESS, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-PF
- Lawrence Schacht Foundation Inc
EIN 136106088 · Headquarters: Uniondale, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF
- Lawrence T Babbio Jr Foundation
EIN 461601552 · Headquarters: Albany, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lawton W Fitt & James I McLaren Foundation
EIN 133919763 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lazbridge Foundation C/o Norton Rose Fulbright Us Llp
EIN 611707183 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lbm Foundation
EIN 831169005 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Lbs Charity Foundation Inc
EIN 814725130 · Headquarters: MONROE, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lcm Foundation
EIN 846452261 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lcpv Foundation Inc
EIN 851672894 · Headquarters: MONROE, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leader Foundation Inc
EIN 593254616 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leadership Huntington Foundation
EIN 112821041 · Headquarters: Huntington, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Leandro De Niro Rodriguez Foundation Inc
EIN 934374263 · Headquarters: JERICHO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leap - Life Enhancement Through Activities and Programs Inc
EIN 271170160 · Headquarters: Berne, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Learn and Discover 3 Inc
EIN 923923384 · Headquarters: Staten Island, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Lebenthal Family Foundation
EIN 137303733 · Headquarters: WOODBURY, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF
- Lebu Society in America Inc
EIN 471486122 · Headquarters: New York, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Lechaim Incorporated
EIN 203282390 · Headquarters: MONROE, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Lederer Ml Irr Tr Fbo Putney School
EIN 266697169 · Headquarters: BUFFALO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lederman Family Foundation
EIN 137202850 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lee and Marvin Traub Charitable Fund
EIN 137267366 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Lee Anderson Memorial Foundation
EIN 456376526 · Headquarters: New York, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lee Romney Foundation Inc Mark Romney Trustee
EIN 133187997 · Headquarters: IRVINGTON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2010 · Primary form: IRS Form 990-PF
- Lee S Kreindler Foundation Inc
EIN 300259779 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lefkowitz Family Charity Fund Inc
EIN 834669569 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Legacy Coalition
EIN 341980397 · Headquarters: Bronx, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Legacy Heritage Fund Limited
EIN 134077801 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Legodlum Inc
EIN 922603840 · Headquarters: STATEN ISLAND, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Leheitiv Inc
EIN 843788375 · Headquarters: Brooklyn, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Leibel Family Foundation
EIN 261079404 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leibowitz and Greenway Family Charitable Foundation
EIN 656358233 · Headquarters: CROTONONHUDSON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leizer Kohn & Ruth Kerman Foundation % Neil Kerman
EIN 113640747 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leland Deane Family Foundation
EIN 137160165 · Headquarters: Lloyd Harbor, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lemlem Foundation C/o Gelfand Rennert & Feldman Llc
EIN 202843928 · Headquarters: WHITE PLAINS, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lemon Brothers Foundation Inc
EIN 471067046 · Headquarters: Bronx, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- Lemont K Richardson Foundation C/o Fulton Vittoria Llpattn M Morello
EIN 421534946 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF
- Lemony Forest Foundation
EIN 208049477 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Len Camber Charitable Trust Co Gruber Palumberi Raffaele
EIN 656444559 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Len Michael & Deyva Schreier Family Foundation Inc
EIN 113464797 · Headquarters: TROY, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lena Hoffmaster Tw
EIN 236877116 · Headquarters: BUFFALO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lend a Hand Uganda - USA
EIN 462682332 · Headquarters: New York, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Lend a Helping Hand Foundation Inc
EIN 273122142 · Headquarters: ROSLYN HEIGHTS, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lenhart Adam S Tr Uw
EIN 236768873 · Headquarters: BUFFALO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lenhart Laura M Tr Ua
EIN 231861306 · Headquarters: BUFFALO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lenox Advisors Foundation Inc C/o Brian Hunt
EIN 463350489 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Lenox Hill Cardiovascular Foundation Inc
EIN 203576870 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ
- Lens on Life Project
EIN 474587281 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Leo & Trude Lemle Family Foundation C/o Robert S Lemle Trustee
EIN 137053800 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF
- Leo and Julia Forchheimer Foundation C/o Golenbock Eisemanassorbell & Pesk
EIN 136075112 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Leo Chalom Charitable Foundation C/o Lm Cohen & Company
EIN 200095798 · Headquarters: NEW YORK, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Leo Israel Memorial Fund
EIN 452752339 · Headquarters: LARCHMONT, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ
- Leo Lion Club Foundation Inc
EIN 813704120 · Headquarters: Brooklyn, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Leo S Walsh Foundation Inc
EIN 201301554 · Headquarters: WESTHAMPTON BEACH, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leon and Symma Miller Memorial Trust
EIN 137076144 · Headquarters: GLEN COVE, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Leon and Zipporah Goldstein Foundation
EIN 161744425 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leon Hoffman Foundation Inc
EIN 136120106 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2009 · Primary form: IRS Form 990-PF
- Leon Levy Foundation
EIN 306085406 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leona Bothmer Foundation
EIN 061816606 · Headquarters: New York, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leonard a Feiner Foundationinc
EIN 112794650 · Headquarters: LAWRENCE, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-PF
- Leonard Cheshire USA Inc
EIN 834297815 · Headquarters: NEW YORK, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Leonard J Sonnenberg Memorial
EIN 113242816 · Headquarters: HUNTINGTON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Leonard Zangas Charitable Trust
EIN 836069777 · Headquarters: GREAT NECK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leonard-hazen Foundation Inc
EIN 882000356 · Headquarters: STEPHENTOWN, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Leonardo Davinci Foundation Inc
EIN 133978242 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leonian Charitable Trust
EIN 367691472 · Headquarters: BRONX, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leonore Foundation Inc
EIN 851834804 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leopold Schepp Foundation
EIN 135562353 · Headquarters: NEW YORK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Leora Belknap Trust Uw C/o Northeast Health
EIN 146155391 · Headquarters: TROY, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Leoviv Ministries Inc
EIN 932492722 · Headquarters: Pomona, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Leprechaun Lines Foundation C/o Francis X Gallagher
EIN 461625120 · Headquarters: NEW WINDSOR, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF
- Lerewd Tw Mtr
EIN 236986879 · Headquarters: BUFFALO, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Lerner Family Foundation Inc
EIN 113333895 · Headquarters: BROOKLYN, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Lerner Foundation Co Gs Garritano & Assoc
EIN 261596911 · Headquarters: ISLANDIA, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Les Paul Foundation
EIN 133911396 · Headquarters: SYOSSET, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF