Hmmi, LLC (formerly Horizontal Machining & Manufacturing, Inc.)

What they make

Where it is

Other plants nearby

Every listed plant in Beadle County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 8 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

• EPA ECHO compliance recordsOPERATING
  first seen MAY 2026 · last seen MAY 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 202858677|SD|57350|640 arizona ave nw · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record SD|huron|640 arizona ave nw · first seen APR 2020 · last seen APR 2020
• EPA Facility Registry ServiceEXISTENCE
  Record 110070156271 · first seen JAN 2018 · last seen JAN 2018

IN BEADLE COUNTY1 other plant shares this one’s industry (Other General Purpose Machinery Manufacturing, NAICS 3339); 1 of them has a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: HMMI, LLC (FORMERLY HORIZONTAL MACHINING & MANUFACTURING, INC.) · OCT 2026

Street address

EPA: 640 ARIZONA NORTHWEST · OCT 2026

City

EPA: HURON · OCT 2026

State

EPA: SD · OCT 2026

Coordinates

EPA: 44.372204,-98.229404 · OCT 2026

Employees (band)

DOL: 20-99 · DEC 2024

Retirement plan filing (Form 5500)

DOL: 81 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x1, approved 2020-04-07, 66 jobs reported · APR 2020