Bill Callahan
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Bill Callahan Email & Phone Number

Project Manager Federal Services Divison at SLSCO LTD.
Location: Mcallen, Texas, United States 9 work roles 1 school
1 work email found @slsco.com 1 phone found area 956 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email b****@slsco.com
Direct phone (956) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Project Manager Federal Services Divison
Location
Mcallen, Texas, United States

Who is Bill Callahan? Overview

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Quick answer

Bill Callahan is listed as Project Manager Federal Services Divison at SLSCO LTD., based in Mcallen, Texas, United States. AeroLeads shows a work email signal at slsco.com, phone signal with area code 956, and a matched LinkedIn profile for Bill Callahan.

Bill Callahan previously worked as Project Manager Federal Services Divison at Slsco, Ltd. and Project Manager at D. Wilson Construction Co.. Bill Callahan holds B.S., Busness from B.S. In Business Administration.

Company email context

Email format at SLSCO LTD.

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{first_initial}{last}@slsco.com
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Profile bio

About Bill Callahan

Hands on field/office operation and proven management experience resulting in increased profitability. Team motivator with ability to identify and solve problems. Supervised staff, multiple subcontractors and various A/E consultants.Computer Literate: Microsoft Excel, Word, Project, Access and PowerPoint, Primavera-P6, Heavy Bid, Construction Project Manager, Adobe Professional, ProLog, Expedition, including Internet use.Specialties: Recognition/anticipation of potential delays or claims, including proper data collection and written reports for rapid resolutions.Established and executed annual operating / project budgets and business plans, including tracking variances.Control of projects from initial design or negotiated contract, through close out, including financial reporting, CPM baseline schedule review, contract negotiations, preparation of invoices, Change Request and Change Orders.

Listed skills include Construction, Contract Negotiation, Project Planning, Construction Management, and 17 others.

Current workplace

Bill Callahan's current company

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SLSCO LTD.
Slsco Ltd.
Project Manager Federal Services Divison
McAllen, Texas, United States
Website
AeroLeads page
9 roles · 51 years

Bill Callahan work experience

A career timeline built from the work history available for this profile.

Project Manager Federal Services Divison

Slsco Ltd.

Mcallen, Texas, United States

Project Manager Federal Services Divison

Rio Grande Valley, Texas

Project Manager

Mcallen, Texas Area

Building two new AEP Service Centers in the lower Rio Grande Valley...

Mar 2017 - Nov 2018

Project Manager

Mcallen Construction, Inc.
May 2006 - Nov 2013

Sr Project / Construction / Program Manager

Parsons Corporation.

Responsible for projects assigned as owners’ representative/consultant, responsible for proper planning during initial design stages to assure complete/correct/consistent plans and specifications, including synchronization of program requirements with owner and A/E design teams through project completion. Establish uniform policies and procedures, business plans, financial budgets and operation of overall construction procedure for various geographical project locations, interpret construction… Show more Responsible for projects assigned as owners’ representative/consultant, responsible for proper planning during initial design stages to assure complete/correct/consistent plans and specifications, including synchronization of program requirements with owner and A/E design teams through project completion. Establish uniform policies and procedures, business plans, financial budgets and operation of overall construction procedure for various geographical project locations, interpret construction documents, supervise subordinate personnel in design / technical field work, manage permitting requirements, claim avoidance, mitigation, and resolution. Conducted presentations to potential clients, oral and written reports, lead, direct and train team effort. Hospitals, Hotels, Schools, FBOP Correctional facilities, Industrial, Petrochemical, Marine construction, Asbestos abatement, USPS, D.O.E., and Housing. Government and private work. Show less

1991 - 1998 ~7 yrs

Senior Project Manager

Spaw Glass, Inc.

Oversee of site staff, contract negotiation, project operating budget and scheduling, means and method planning with superintendent. Develop project logs and files, contract negotiation and buy out, establish CPM baseline schedule, evaluate changes made during construction and change order preparation/execution, coordination of all construction documents, shop drawings and technical data. Schools, Offices, USPS construction. Government and private work

1987 - 1991 ~4 yrs

Project Manager

Rodgers Construction, Inc.:

Overall responsibility for projects assigned to assure timely completion, profitability, subcontract buy out, quality control and detailed project reporting Hospital, and Health Care construction, private and Government.

1985 - 1987 ~2 yrs

Uscg Yacht Captain, Scuba Instructor

Undersea Center

Operated a scuba diving business, conducted sailing and dive trips throughout Caribbean islands on sailing vessels ranging from 72' to 33'. Performed maintenance and detailing of yacht components, performed salvage dives and underwater repair. PADI instructor # 9443-OW.

1976 - 1981 ~5 yrs
Team & coworkers

Colleagues at SLSCO LTD.

Other employees you can reach at slsco.com. View company contacts →

1 education record

Bill Callahan education

  • B.S. In Business Administration
    B.S. In Business Administration
    Busness
FAQ

Frequently asked questions about Bill Callahan

Quick answers generated from the profile data available on this page.

What company does Bill Callahan work for?

Bill Callahan works for SLSCO LTD..

What is Bill Callahan's role at SLSCO LTD.?

Bill Callahan is listed as Project Manager Federal Services Divison at SLSCO LTD..

What is Bill Callahan's email address?

AeroLeads has found 1 work email signal at @slsco.com for Bill Callahan at SLSCO LTD..

What is Bill Callahan's phone number?

AeroLeads has found 1 phone signal(s) with area code 956 for Bill Callahan at SLSCO LTD..

Where is Bill Callahan based?

Bill Callahan is based in Mcallen, Texas, United States while working with SLSCO LTD..

What companies has Bill Callahan worked for?

Bill Callahan has worked for Slsco Ltd., Slsco, Ltd., D. Wilson Construction Co., Asrc Federal, and Mcallen Construction, Inc..

Who are Bill Callahan's colleagues at SLSCO LTD.?

Bill Callahan's colleagues at SLSCO LTD. include Tatiana Ambruster, Megan Ludgate, Jajajaj Snakwk, Vincent Fafard, Pe, and Lo Li.

How can I contact Bill Callahan?

You can use AeroLeads to view verified contact signals for Bill Callahan at SLSCO LTD., including work email, phone, and LinkedIn data when available.

What schools did Bill Callahan attend?

Bill Callahan holds B.S., Busness from B.S. In Business Administration.

What skills is Bill Callahan known for?

Bill Callahan is listed with skills including Construction, Contract Negotiation, Project Planning, Construction Management, Project Management, Contract Management, Change Orders, and Project Estimation.

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