What is Keystone Construction Company's official website?

Keystone Construction Company's website is keystone-stl.com

How many employees are working in Keystone Construction Company right now?

Keystone Construction Company has 40 employees.

What is Keystone Construction Company's industry?

Keystone Construction Company's industry is Construction

Who are Keystone Construction Company's top competitors?

Keystone Construction Company's top competitors are , , , , , ,

When was Keystone Construction Company founded?

Keystone Construction Company's founding year is 1987

Keystone Construction Company company information, Employees & Contact Information

Updated June 2026

Quick answer

Keystone Construction Company is a Construction company and founded in 1987. It has approximately 40 employees on record. Contact data was last refreshed in June 2026. Find Keystone Construction Company's verified employee emails, phone numbers, headquarters address, and key decision makers below.

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Keystone Construction Company is a St. Louis based Commercial Design/Build Contractor founded in 1987 by Bill and John Hardie. Our company's areas of expertise are in the Office, Retail, Industrial and Medical design/build sectors. A privately owned company located in Chesterfield, Missouri. View our website at www.keystone-stl.com

Employees: 40
Founded: 1987
Address: 673 Spirit Valley West Drive, Chesterfield,missouri 63005,united States
Industry: Construction
NAICS: Construction
Website: keystone-stl.com
Keywords: Office Design/Build, Retail Design/Build, Medical Design/Build, Industrial Design/Build, Sports Facilities Design/Build.
HQ: Chesterfield, Missouri
Competitors: MBG, Otter & Company Capital Holdings, Brahms Construction, LLC, Gray Design Group, Bingman Construction Company, KEYSTONE CONSTRUCTION LLC, Holland Construction Services, Integrate Construction Partners, Raineri Construction, CarShield.

Keystone Construction Company Questions

News

St. Louis developers launch Otter & Co., acquire local construction firm Keystone - The Business Journals

St. Louis developers launch Otter & Co., acquire local construction firm Keystone The Business Journals

Keystone Construction Company completes next phase of $4 million outdoor entertainment space in St. Louis market - REJournals

Keystone Construction Company completes next phase of $4 million outdoor entertainment space in St. Louis market REJournals

One of the largest sports complexes in the Midwest to be built in Chesterfield - KMOV

One of the largest sports complexes in the Midwest to be built in Chesterfield KMOV

Keystone Construction Completes $4 Million Outdoor Entertainment Space in Metro St. Louis - Shopping Center Business

Keystone Construction Completes $4 Million Outdoor Entertainment Space in Metro St. Louis Shopping Center Business

Keystone Construction Completes $4M Outdoor Entertainment Space at The District of St. Louis - REBusinessOnline

Keystone Construction Completes $4M Outdoor Entertainment Space at The District of St. Louis REBusinessOnline

Keystone Construction Company wraps construction of CBS affiliate’s First Alert 4 facility in St. Louis - REJournals

Keystone Construction Company wraps construction of CBS affiliate’s First Alert 4 facility in St. Louis REJournals

Builders of the Gateway Arch reunite at event Saturday - Alton Telegraph

Builders of the Gateway Arch reunite at event Saturday Alton Telegraph

Family Business Profile: Why Keystone Construction is a case study in design-build construction - The Business Journals

Family Business Profile: Why Keystone Construction is a case study in design-build construction The Business Journals

'Keystone moments': forward in hope - Global Sisters Report

'Keystone moments': forward in hope Global Sisters Report

TransCanada To Replace Keystone Pipeline Section That Was Source Of Leak In St. Charles County - STLPR

TransCanada To Replace Keystone Pipeline Section That Was Source Of Leak In St. Charles County STLPR

Oil Spill Shuts TransCanada's Keystone Pipeline in Same County Where 'Paper-thin' Pipe Found in 2012 - DeSmog

Oil Spill Shuts TransCanada's Keystone Pipeline in Same County Where 'Paper-thin' Pipe Found in 2012 DeSmog

Valentines for Vacant Buildings; Gravois Park Houses Getting Some Love - NextSTL

Valentines for Vacant Buildings; Gravois Park Houses Getting Some Love NextSTL

Keystone Construction Company building 131,000-square-foot tubing manufacturing facility in St. Louis market - REJournals

Keystone Construction Company building 131,000-square-foot tubing manufacturing facility in St. Louis market REJournals

Hayward Baker Wins Keystone Award - Tunnel Business Magazine

Hayward Baker Wins Keystone Award Tunnel Business Magazine

Builder breaks ground on $60M sports facility - The Business Journals

Builder breaks ground on $60M sports facility The Business Journals

New Pipeline Across Missouri, Illinois Is A Lot Like Keystone - But Have You Heard Of It? - STLPR

New Pipeline Across Missouri, Illinois Is A Lot Like Keystone - But Have You Heard Of It? STLPR

Mia Rose Holdings, Keystone Construction Company wrap work on St. Louis-area indoor sports complex - REJournals

Mia Rose Holdings, Keystone Construction Company wrap work on St. Louis-area indoor sports complex REJournals

Keystone Construction to begin $4 million outdoor entertainment space at District of St. Louis - REJournals

Keystone Construction to begin $4 million outdoor entertainment space at District of St. Louis REJournals

Companies like Keystone Construction Company

Top Keystone Construction Company Employees

Kevin Palmer

Superintendent At Kadean Construction…

N/a

View
Jeff Lampe

Patriot Ozf

Rocheport, Missouri, United States, United States

View

1
centurytel.net
Bill Hardie

President & Founder At Keystone…

Chesterfield, Missouri, United States, United States

View

3
keystone-stl.com, keystone-stl.com, keystone-stl.com
Christina McCallister

Director Of Finance & Management At…

Chesterfield, Missouri, United States, United States

View

2
gmail.com, keystone-stl.com

2 +163651XXXXX

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Keystone Construction Company company information, Employees & Contact Information

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Keystone Construction Company Questions

What is Keystone Construction Company's official website?

What is Keystone Construction Company's LinkedIn profile?

How many employees are working in Keystone Construction Company right now?

What is Keystone Construction Company's industry?

What are Keystone Construction Company's top competitors?

What are Keystone Construction Company's categories?

When was Keystone Construction Company founded?

News

St. Louis developers launch Otter & Co., acquire local construction firm Keystone - The Business Journals

Keystone Construction Company completes next phase of $4 million outdoor entertainment space in St. Louis market - REJournals

One of the largest sports complexes in the Midwest to be built in Chesterfield - KMOV

Keystone Construction Completes $4 Million Outdoor Entertainment Space in Metro St. Louis - Shopping Center Business

Keystone Construction Completes $4M Outdoor Entertainment Space at The District of St. Louis - REBusinessOnline

Keystone Construction Company wraps construction of CBS affiliate’s First Alert 4 facility in St. Louis - REJournals

Builders of the Gateway Arch reunite at event Saturday - Alton Telegraph

Family Business Profile: Why Keystone Construction is a case study in design-build construction - The Business Journals

'Keystone moments': forward in hope - Global Sisters Report

TransCanada To Replace Keystone Pipeline Section That Was Source Of Leak In St. Charles County - STLPR

Oil Spill Shuts TransCanada's Keystone Pipeline in Same County Where 'Paper-thin' Pipe Found in 2012 - DeSmog

Valentines for Vacant Buildings; Gravois Park Houses Getting Some Love - NextSTL

Keystone Construction Company building 131,000-square-foot tubing manufacturing facility in St. Louis market - REJournals

Hayward Baker Wins Keystone Award - Tunnel Business Magazine

Builder breaks ground on $60M sports facility - The Business Journals

New Pipeline Across Missouri, Illinois Is A Lot Like Keystone - But Have You Heard Of It? - STLPR

Mia Rose Holdings, Keystone Construction Company wrap work on St. Louis-area indoor sports complex - REJournals

Keystone Construction to begin $4 million outdoor entertainment space at District of St. Louis - REJournals

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