Support Activities for Mining - H-1B Visa Sponsors

10 employers in the Support Activities for Mining industry (NAICS 2131) sponsor H-1B work visas.

đź“Ť Employers in This Industry

Click an employer to view their full sponsorship profile.

Support Activities for Mining10 total
MADER CORPORATION
FORT COLLINS, CO20 filings
BARMINCO MINING SERVICES USA LLC
DENVER, CO19 filings
SWICK MINING SERVICES (USA) INC
ELKO, NV4 filings
TAKRAF USA, INC
DENVER, CO3 filings
ENVIROTECH DRILLING
WINNEMUCCA, NV2 filings
GMS MINE REPAIR & MAINTENANCE INC
MT LAKE PARK, MD2 filings
HARPER MINING LLC
PEORIA, IL2 filings
TAS AUTOMATION LLC
HOUSTON, TX2 filings
THE ROTHWELL GROUP, LP
LITTLETON, CO2 filings
PROSTAR MINING LLC
PEORIA, IL1 filings

Work Visa Categories

H-1B
Most common US work visa for specialty occupations
Annual cap:65,000 + 20,000 (US master’s)
Lottery:Yes, weighted by wage level from FY2027
Duration:3 years, extendable to 6
Spouse work:H-4 EAD if I-140 approved
H-1B Cap-Exempt
No lottery required. Qualifying employers only
Annual cap:None. File any time
Lottery:None. No registration needed
Who qualifies:Nonprofit universities, research orgs, affiliates
Duration:Same as regular H-1B
E-3
Australian nationals only. Cap rarely reached
Annual cap:10,500. Never exhausted
Lottery:None
Duration:2 years, renewable indefinitely
Spouse work:E-3D automatic work authorization
H-1B1
Chile & Singapore nationals. Free Trade Agreement
Annual cap:6,800 (1,400 Chile + 5,400 Singapore)
Lottery:None
Duration:1 year, renewable
Spouse work:No automatic work authorization

H-1B Wage Levels Explained

LEVEL I · ENTRY
“Performs routine tasks requiring limited, if any, exercise of judgment. Work is closely supervised.”
In practice:Work is assigned and checked by a supervisor. The employee is learning the employer’s methods. Mistakes are caught and corrected by others.
Associate EngineerJunior AnalystNew Graduate
1Ă—lottery entry under FY2027 weighted system
If your LCA description lists “5+ years of experience,” “works independently,” or “leads a team”, Level I may be inconsistent with those duties and could attract RFE scrutiny.