Insights

Safety Excellence Keystone Engineering has a strong safety track record evidenced by multiple LWCC Safest 70 awards (2022, 2023, 2025). This highlights a culture of risk management and reliability that can reassure potential clients in high-hazard sectors such as energy, refining, and offshore projects.

Diverse Industry Access Serving Energy, Refining, Petrochemical, Mining, Marine, Manufacturing, Utility, and Renewable Energy sectors positions Keystone to pursue cross-industry cross-sell opportunities. Selling new services to existing clients or offering integrated solutions across sectors could expand project pipeline.

Expansion synergies Active subsidiaries including Milestone Project Services, SIS SILverstone, Salmon & Associates, and VeraPro broaden capabilities in Construction Management, Process Safety Management, Staffing, and IT services. This presents upsell opportunities for clients needing end-to-end execution and asset lifecycle support.

Award driven credibility Recognition such as Outstanding Business of the Year and Congressional Honors signals strong local market credibility and stakeholder relationships. Leverage these accolades in proposals to differentiate Keystone in competitive bids and regional opportunities.

Historic offshore success Past involvement in offshore wind projects (Block Island Wind Farm) and partnerships with Gulf Island Fabrication suggest proficiency in large-scale, complex projects with multi-party coordination. Target similar large-scale energy and wind projects where disciplined project management and safety leadership are valued.

Keystone Engineering Inc Tech Stack

Keystone Engineering Inc uses 8 technology products and services including Bentley, Google Fonts API, PowerSchool, and more. Explore Keystone Engineering Inc's tech stack below.

  • Bentley
    Design
  • Google Fonts API
    Font Scripts
  • PowerSchool
    Learning Management System
  • Microsoft Word
    Office Suites
  • Microsoft Project
    Project Management
  • Timesheets
    Time Tracking
  • YouTube
    Video Players
  • Adobe Creative Suite
    Visualisation Software

Media & News

Keystone Engineering Inc's Email Address Formats

Keystone Engineering Inc uses at least 2 format(s):
Keystone Engineering Inc Email FormatsExamplePercentage
FLast@keystoneeng.comJDoe@keystoneeng.com
100%
FLast@keystoneengr.comJDoe@keystoneengr.com
93%
Last@keystoneengr.comDoe@keystoneengr.com
6%
First.Last@keystoneengr.comJohn.Doe@keystoneengr.com
1%

Frequently Asked Questions

What is Keystone Engineering Inc's phone number?

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You can contact Keystone Engineering Inc's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Keystone Engineering Inc's official website and social media links?

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Keystone Engineering Inc's official website is keystoneengr.com and has social profiles on LinkedIn.

How much revenue does Keystone Engineering Inc generate?

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As of July 2026, Keystone Engineering Inc's annual revenue is estimated to be $500M - $1B.

What is Keystone Engineering Inc's SIC code NAICS code?

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Keystone Engineering Inc's SIC code is 8711 - Engineering Services NAICS code is 5413 - Architectural, Engineering, and Related Services.

How many employees does Keystone Engineering Inc have currently?

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As of July 2026, Keystone Engineering Inc has approximately 494 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Owner: J. S.Director , Sales And Marketing: M. D.Project Manager: L. A.. Explore Keystone Engineering Inc's employee directory with LeadIQ.

What industry does Keystone Engineering Inc belong to?

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Keystone Engineering Inc operates in the Engineering Services industry.

What technology does Keystone Engineering Inc use?

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Keystone Engineering Inc's tech stack includes BentleyGoogle Fonts APIPowerSchoolMicrosoft WordMicrosoft ProjectTimesheetsYouTubeAdobe Creative Suite.

What is Keystone Engineering Inc's email format?

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Keystone Engineering Inc's email format typically follows the pattern of FLast@keystoneeng.com. Find more Keystone Engineering Inc email formats with LeadIQ.

When was Keystone Engineering Inc founded?

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Keystone Engineering Inc was founded in 1988.
Keystone Engineering Inc logo

Keystone Engineering Inc

Engineering ServicesLouisiana, United States201-500 Employees

Keystone Engineering Inc is an engineering services firm based in Mandeville, Louisiana, founded in 1988. It provides engineering solutions across energy, refining, petrochemical, mining, marine, manufacturing, and utilities, with growing activity in renewable energy. A multidisciplinary team emphasizes quality and safety while delivering designs that balance cost, schedule, and practicality. Keystone broadens its capabilities through subsidiaries such as Milestone Project Services, SIS Silverstone, Salmon & Associates, and VeraPro, which offer construction management, process safety management, staffing, and IT services. These entities complement Keystone's core engineering work to support integrated project delivery. In March 2026, Keystone was recognized with the 2025 LWCC Safest 70 Award for workplace safety.

Section iconCompany Overview

Phone number
SIC Code
8711 - Engineering Services
NAICS Code
5413 - Architectural, Engineering, and Related Services
Founded
1988
Employees
201-500

Section iconFunding & Financials

  • $500M - $1B

    Keystone Engineering Inc's revenue is estimated to be in the range of $500M - $1B

Section iconFunding & Financials

  • $500M - $1B

    Keystone Engineering Inc's revenue is estimated to be in the range of $500M - $1B

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