AeroLeads people directory · profile
Jack Stemm Email & Phone Number
Senior Estimator
at
Onsite Construction Group LLC
1 work email found
@masonandhanger.com
7 phones found area 913, 859, 573, 816, and 785
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Senior Estimator
Location
Overland Park, Kansas, United States
Company size
Who is Jack Stemm? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Jack Stemm is listed as Senior Estimator at Onsite Construction Group LLC, a company with 21 employees, based in Overland Park, Kansas, United States. AeroLeads shows a work email signal at masonandhanger.com, phone signal with area code 913, 859, 573, 816, 785, and a matched LinkedIn profile for Jack Stemm.
Jack Stemm previously worked as Senior Estimator at Vazquez Commercial Contracting and Estimator at Zieson Construction Company, Llc. Jack Stemm holds Bs, Construction Management from University Of Nebraska-Lincoln.
Company email context
Email format at Onsite Construction Group LLC
This section adds company-level context without repeating Jack Stemm's masked contact details.
{first}.{last}@masonandhanger.com
86% confidence
AeroLeads found 1 current-domain work email signal for Jack Stemm. Compare company email patterns before reaching out.
Profile bio
About Jack Stemm
Experienced Construction Professional in estimating and project management with commercial, healthcare, educational, institutional, industrial and government project including competitively bid, design/build, program management and construction management.
Listed skills include Cost Estimating, Project Management, Contract Negotiation, Bid Solicitation, and 18 others.
Current workplace
Jack Stemm's current company
Company context helps verify the profile and gives searchers a useful next step.
Onsite Construction Group Llc
10 roles · 43 years
Jack Stemm work experience
A career timeline built from the work history available for this profile.
Senior Estimator
Vazquez Commercial Contracting
Estimator
Zieson Construction Company, Llc
Jul 2015 - Mar 2018
Senior Estimator
Aug 2013 - Jan 2015
Sr Estimator
Eci Construction/Mason & Hanger
Cost estimating fro competitively bid and design/build projects, purchasing, proposal scheduling fro Department of Defense projects located in all regions of the United states ranging in size from $1 million to $50 million.
2002 - 2012
~10 yrs
Chief Estimator
Barsto Construction
Cost estimating for competitively bid and design/build projects, purchasing, scheduling for projects in multi-family, lofts, commercial, institutional and industrial ranging in size from $250,000 to $15 million.
2001 - 2002
~1 yr
Consultant/Senior Estimator
Dicarlo Construction
Cost estimating for competitively bid and design/build projects, purchasing, scheduling for projects located in the Midwest ranging in size from $1 million to $75 million. Projects included retail, office buildings, educational, municipal, health care and historical renovations
1999 - 2001
~2 yrs
Senior Estimator
Universal Construction
Cost estimating for competitively bid and design/build projects, purchasing, scheduling for projects located in Kansas and Missouri ranging in size from $1 million to $20 million. Projects included retail, office buildings, educational, municipal, health care and historical renovations.
1994 - 1999
~5 yrs
Estimator/Project Manager
Hoffman-Cortes Contracting
Cost estimating and project management of competitively bid and design/build projects including purchasing and scheduling for projecs located in Kansas City area ranging in size from $250,000 to $10,000,000.
1988 - 1994
~6 yrs
Estimator/Project Manager
Universal Construction
Cost estimating, project management, purchasing and scheduling for competitively bid and design/build projects located in Kansas and Missouri ranging in size from $1 million to $15 million. Projects included commercial, retail, office buildings, educational, municipal, healthcare, housing and historical renovations
1983 - 1988
~5 yrs
Team & coworkers
Colleagues at Onsite Construction Group LLC
Other employees you can reach at onsite-cg.com. View company contacts for 21 employees →
DE
Dan Edwards
Colleague at Onsite Construction Group LlcPrairie Home, Missouri, United States, United States
View →
AS
Ashley Snow
Colleague at Onsite Construction Group LlcStillwater, Oklahoma, United States, United States
View →
DR
Damon Roy
Colleague at Onsite Construction Group LlcOklahoma City Metropolitan Area, United States
View →
AH
Andrew Hecker
Colleague at Onsite Construction Group LlcTopeka, Kansas, United States, United States
View →
BW
Bryan Waibel
Colleague at Onsite Construction Group LlcPilot Grove, Missouri, United States, United States
View →
ST
Steve Tranmer
Colleague at Onsite Construction Group LlcTampa, Florida, United States, United States
View →
LN
Liam Neidig
Colleague at Onsite Construction Group LlcLansing, Kansas, United States, United States
View →
JP
James Pierce
Colleague at Onsite Construction Group LlcOklahoma City, Oklahoma, United States, United States
View →
CB
Charles Baucom
Colleague at Onsite Construction Group LlcAlbuquerque-Santa Fe Metropolitan Area, United States
View →
JB
Joe Barnhart
Colleague at Onsite Construction Group LlcOklahoma City, Oklahoma, United States, United States
View →
Dan Edwards
Colleague at Onsite Construction Group LlcPrairie Home, Missouri, United States, United States
View →
AS
Ashley Snow
Colleague at Onsite Construction Group LlcStillwater, Oklahoma, United States, United States
View →
DR
Damon Roy
Colleague at Onsite Construction Group LlcOklahoma City Metropolitan Area, United States
View →
AH
Andrew Hecker
Colleague at Onsite Construction Group LlcTopeka, Kansas, United States, United States
View →
BW
Bryan Waibel
Colleague at Onsite Construction Group LlcPilot Grove, Missouri, United States, United States
View →
ST
Steve Tranmer
Colleague at Onsite Construction Group LlcTampa, Florida, United States, United States
View →
LN
Liam Neidig
Colleague at Onsite Construction Group LlcLansing, Kansas, United States, United States
View →
JP
James Pierce
Colleague at Onsite Construction Group LlcOklahoma City, Oklahoma, United States, United States
View →
CB
Charles Baucom
Colleague at Onsite Construction Group LlcAlbuquerque-Santa Fe Metropolitan Area, United States
View →
JB
Joe Barnhart
Colleague at Onsite Construction Group LlcOklahoma City, Oklahoma, United States, United States
View →
1 education record
Jack Stemm education
FAQ
Frequently asked questions about Jack Stemm
Quick answers generated from the profile data available on this page.
What company does Jack Stemm work for?
Jack Stemm works for Onsite Construction Group LLC.
What is Jack Stemm's role at Onsite Construction Group LLC?
Jack Stemm is listed as Senior Estimator at Onsite Construction Group LLC.
What is Jack Stemm's email address?
AeroLeads has found 1 work email signal at @masonandhanger.com for Jack Stemm at Onsite Construction Group LLC.
What is Jack Stemm's phone number?
AeroLeads has found 7 phone signal(s) with area code 913, 859, 573, 816, 785 for Jack Stemm at Onsite Construction Group LLC.
Where is Jack Stemm based?
Jack Stemm is based in Overland Park, Kansas, United States while working with Onsite Construction Group LLC.
What companies has Jack Stemm worked for?
Jack Stemm has worked for Onsite Construction Group Llc, Vazquez Commercial Contracting, Zieson Construction Company, Llc, The Weitz Company, and Eci Construction/Mason & Hanger.
Who are Jack Stemm's colleagues at Onsite Construction Group LLC?
Jack Stemm's colleagues at Onsite Construction Group LLC include Dan Edwards, Ashley Snow, Damon Roy, Andrew Hecker, and Bryan Waibel.
How can I contact Jack Stemm?
You can use AeroLeads to view verified contact signals for Jack Stemm at Onsite Construction Group LLC, including work email, phone, and LinkedIn data when available.
What schools did Jack Stemm attend?
Jack Stemm holds Bs, Construction Management from University Of Nebraska-Lincoln.
What skills is Jack Stemm known for?
Jack Stemm is listed with skills including Cost Estimating, Project Management, Contract Negotiation, Bid Solicitation, Scheduling, Database Management, Far, and Microsoft Office Suite.
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