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INSTITUTE FOR SOCIO-ECOLOGICAL RESEARCH

EIN 66-0795286 LAJAS, PR

Browse the largest nonprofits in Puerto Rico

Revenue 2024
$2,736,635
Expenses 2024
$2,727,102

Program services were 91.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
C05
Classification
2800
Street
PO BOX 3151

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

ISER Caribe is committed to working directly with local communities by conducting participatory research and engagement

Activities or mission (Part I)

ISER CARIBE is committed to working directly with local communities by conducting research and engagement.

  • Connect with communities across the Caribbean and in coastal communities across the Americas on projects related to marine restoration and conservation, climate change, and social and environmental justice. The projects build consensus that allows to develop participatory actions, capacity building and horizontal knowledge transfer through applied research, local outreach activities, and education.

    Expenses $2,485,910 · Revenue $2,201,784

  • Establishing a land based coral nursery to increase coral restoration.

    Revenue $218,612

  • Coral restoration project to reintroduce an important herbivore, Diadema antillarum, to coral reefs around Puerto Rico

    Revenue $279,451

As filed on the 2024 return.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Stacey Williams

    Executive Director

    Total calculated
    $89,141
    From this org
    $89,141
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

  • Braulio Quintero

    President

    Total calculated
    $18,959
    From this org
    $18,959
    From related orgs
    $0
    Other
    $0
    Hours/week
    20

  • Ryan Mann Hamilton

    Treasurer

    Total calculated
    $6,050
    From this org
    $6,050
    From related orgs
    $0
    Other
    $0
    Hours/week
    10

  • Elvia Melendez Ackerman

    Director

    Total calculated
    $0
    Hours/week
    1

  • Brenda Soler

    Director

    Total calculated
    $0
    Hours/week
    1

  • Mariangie Rosas

    Director

    Total calculated
    $0
    Hours/week
    1

  • Sacha C Steiner

    Director

    Total calculated
    $0
    Hours/week
    1

  • Nathan Hosannah

    Director

    Total calculated
    $0
    Hours/week
    1

  • Isacc Carter

    Director

    Total calculated
    $0
    Hours/week
    1

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $2,736,635
    Expenses
    $2,727,102
    Contributions
    $2,201,784
    Grants paid
    $515,389
  • 2023
    Revenue
    $1,487,137
    Expenses
    $1,632,002
    Contributions
    $1,487,137
    Grants paid
    $370,872
  • 2022
    Revenue
    $978,410
    Expenses
    $744,790
    Contributions
    $542,735
    Grants paid
    $254,647

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $313,291
    Expenses
    $343,777
    Assets (EOY)
    $73,323

  • 2020 · 990

    Revenue
    $249,423
    Expenses
    $230,488
    Assets (EOY)
    $103,551

  • 2019 · 990

    Revenue
    $226,921
    Expenses
    $219,406
    Assets (EOY)
    $81,128

  • 2018 · 990

    Revenue
    $261,341
    Expenses
    $375,246
    Assets (EOY)
    $73,493

  • 2017 · 990

    Revenue
    $377,205
    Expenses
    $187,842
    Assets (EOY)
    $199,801

  • 2016 · 990-EZ

    Revenue
    $110,423
    Expenses
    $114,679
    Assets (EOY)
    $1,473

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Form 990-N e-Postcard, tax year 2015

Tax period
1 January 2015 to 31 December 2015
Principal officer
Braulio Quintero
Mailing address
PO BOX 3151Lajas Lajas 00667RQ
Website
www.isercaribe.org

As filed, from the IRS e-Postcard file of 2 November 2026. The IRS publishes only each organization's most recent postcard, so earlier years are not shown. A 990-N carries no financial detail. The postcard also gives the principal officer's address, which is not shown here.

Grants made

  • Las Mujeres Bartolenas Inc

    $131,818

    2023 Las Bartolenas is an organization of women that aspires to develop a community to improve the lives of people in the region, promote independent living, ensure a future for our children with the development of their own homes and the creation of jobs that allow them to support themselves.

  • CAM Jibaros Inc

    $131,303

    2023 Jibaros is an organization to promote mutual community and agricultural support

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.