Es Engineering Services, LLC

Company facts

FY2025 rankings

Its parent company, Onterris, Inc., ranks #60 in PSC AH

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 541330 Engineering Services
• 541380 Testing Laboratories and Services
• 562910 Remediation Services

Corporate family

• Onterris, Inc. Parent North Little Rock, AR U423S3MV3V53
  • Es Engineering Services, LLC

SAM.gov registration date

Aug 28, 2018

Physical address

4 Park Plaza #790, Irvine, CA 92614, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Jan 4, 2026.