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EntityWire / EIN 36-2141703

Tax-exempt organization

PIPE FITTERS WELFARE FUND LOCAL 597

EIN 36-2141703. What DOL Form 5500 filings (EFAST2) and IRS Exempt Organizations Business Master File say about this entity, with the source and date on every fact. Latest record 2026-09.

Tax-exempt organization ยท Files a Form 5500

PIPE FITTERS WELFARE FUND LOCAL 597

Also filed as TRUSTEES OF PIPE FITTERS WELFARE FUND

45 N OGDEN AVE, CHICAGO, IL 60607-1813

EIN

36-2141703

Tax-exempt status

501(c)(9) voluntary employees' beneficiary association

IRS · 2026-09

Deductibility

code 0

IRS · 2026-09

IRS ruling date

1965-01

IRS · 2026-09

Latest tax period on file

2024-12

IRS · 2026-09

Revenue (latest 990)

$195,778,777

IRS · 2026-09

Assets (latest 990)

$342,062,576

IRS · 2026-09

Benefit plan 501, 2024 filing

PIPE FITTERS WELFARE FUND, LOCAL 597

DOL · 2025-10-09

Participants (start of year)

10,614

DOL · 2025-10-09

Plan features

code 4A4D4E4F4L4Q

DOL · 2025-10-09

Plan type

Multiemployer plan

DOL · 2025-10-09

Business code (NAICS)

238220

DOL · 2025-10-09

Benefit plan 501, 2023 filing

PIPE FITTERS WELFARE FUND, LOCAL 597

DOL · 2024-10-10

Participants (start of year)

10,315

DOL · 2024-10-10

Plan features

code 4A4D4E4F4L4Q

DOL · 2024-10-10

From DOL Form 5500 filings (EFAST2) · IRS Exempt Organizations Business Master File. Latest record 2026-09.

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