funder-graph › Recipients
Who funds Porter Square Books Foundation Inc
EIN 47-1046467 · Cambridge, MA · NTEE B92
Porter Square Books Foundation Inc of Cambridge, MA (EIN 47-1046467) was named as a grant recipient by 2 funders in 2 grants paid totaling $14,000 in tax years 2020, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$14,000
2 grants paid
Funders
2
distinct grantmakers
Tax years
2020
as reported by funders
Funders
| Funder | State | Match | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| National Philanthropic Trust 23-7825575 | PA | A | 1 | $10,000 | 2020 |
| Harnisch Family Foundation C/O Peconic Partners 51-0381959 | NY | B | 1 | $4,000 | 2020 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Grants
The 2 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2020 | National Philanthropic Trust | Porter Square Books Foundation Inc Cambridge, MA | A | $10,000 | paid | CULTURE & ARTS | 202121459349300307 |
| 2020 | Harnisch Family Foundation C/O Peconic Partners | Porter Square Books Foundation Cambridge, MA | B | $4,000 | paid | CHARITABLE | 202101049349100035 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.