EntityWire/Massachusetts business entity search →/HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
Employer with a benefit plan
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY's Employer Identification Number (EIN) is 04-1456030.
At a glance
- EIN
- 04-1456030 · 041456030
- Legal name
- HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
- Also filed as
- HOUGHTON MIFFLIN CO; HOUGHTON MIFFLIN CO/FA
- Address on file
- 125 HIGH STREET, BOSTON, MA 02110
- Records show
- SEC filer; employer with a benefit plan; state registration
- Latest record
- 2026-07-10
State registration
Florida Division of Corporations (Sunbiz) bulk data · records as of 2026-07-10
- Florida registration
- Active · Foreign profit corporation
- Source: Florida registry · as of 2026-07-10
- Florida document number
- 803695
- Source: Florida registry · as of 2026-07-10
- Registered in Florida
- 1930-03-27
- Source: Florida registry · as of 2026-07-10
- Registered agent
- CT CORPORATION SYSTEM
- Source: Florida registry · as of 2026-07-10
- Last registry activity
- 2024-07-29
- Source: Florida registry · as of 2026-07-10
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2026-07-09
- Benefit plan 520, 2024 filing
- HOUGHTON MIFFLIN HARCOURT PUBLISHING CO. BENEFIT PLAN
- Source: DOL 5500 · as of 2026-07-09
- Participants (start of year)
- 2,874
- Source: DOL 5500 · as of 2026-07-09
- Plan features
- Health (other than dental or vision); Life insurance; Dental; Vision; Temporary disability; Prepaid legal
- Source: DOL 5500 · as of 2026-07-09
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2026-07-09
- Business code (NAICS)
- 511130
- Source: DOL 5500 · as of 2026-07-09
- Benefit plan 520, 2023 filing
- HOUGHTON MIFFLIN HARCOURT PUBLISHING CO. BENEFIT PLAN
- Source: DOL 5500 · as of 2026-07-09
- Participants (start of year)
- 2,181
- Source: DOL 5500 · as of 2026-07-09
- Plan features
- Health (other than dental or vision); Life insurance; Dental; Vision; Temporary disability; Prepaid legal
- Source: DOL 5500 · as of 2026-07-09
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2026-07-09
What this record is
Public filings that carry this EIN (DOL Form 5500 filings (EFAST2), Florida Division of Corporations (Sunbiz) bulk data and SEC EDGAR company filings), shown as filed. Nothing is scraped from the IRS, and a public-record match is not IRS TIN validation.
What it is not
Registry status, formation date, and registered agent come from the Secretary of the Commonwealth, Corporations Division; see the Massachusetts business entity search.
If something is wrong
A name, address, or classification here is what the source published. To correct the source, file with it; to have this page removed, see corrections and removal.
Other Massachusetts businesses on file
- HUBSPOT, INC.EIN 20-2632791
- VERTEX PHARMACEUTICALS INCORPORATEDEIN 04-3039129
- AKAMAI TECHNOLOGIES, INC.EIN 04-3432319
- EMC CORPORATIONEIN 04-2680009
- VIRTUSA CORPORATIONEIN 04-3512883
- LIONBRIDGE TECHNOLOGIES, LLCEIN 04-3398462
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