Ronnessa Witthaus
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Ronnessa Witthaus Email & Phone Number

Customer Service Supervisor at GCX
Location: Santa Rosa, California, United States 3 work roles
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✓ Verified Jul 2026 2 data sources Profile completeness 71%

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Current company
GCX
Role
Customer Service Supervisor
Location
Santa Rosa, California, United States
Company size
117 employees

Who is Ronnessa Witthaus? Overview

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Quick answer

Ronnessa Witthaus is listed as Customer Service Supervisor at GCX, a with 117 employees, based in Santa Rosa, California, United States. AeroLeads shows a matched LinkedIn profile for Ronnessa Witthaus.

Ronnessa Witthaus previously worked as Customer Service Representative at Gcx Corp and Receptionist at Northwest Insurance.

Company email context

Email format at GCX

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GCX

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Profile bio

About Ronnessa Witthaus

Ronnessa Witthaus is a Customer Service Supervisor at GCX.

Current workplace

Ronnessa Witthaus's current company

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GCX
Gcx
Customer Service Supervisor
petaluma, california, united states
Website
gcx.com
Employees
117
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3 roles · 29 years

Ronnessa Witthaus work experience

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

Customer Service Supervisor

Current
Gcx
Oct 2001 - Present

Customer Service Representative

Current
Gcx Corp
Oct 2001 - Present

Receptionist

Northwest Insurance

Santa Rosa, California, United States

The receptionist role was the main switchboard at the front desk. Job included greeting customers at the desk, routing callers to various sales and customer service personnel. Required computer knowledge to look up customer accounts and policies. Multitasking skills were a high necessity to manage front area. Down time in included filing, mailroom sorting, and up keep of front waiting area. Promoted to a customer service position within the workman's comp department. Worked directly with customers regarding policies, billing, and general policy coverage.

1998 - 2001 ~3 yrs
Team & coworkers

Colleagues at GCX

Other employees you can reach at gcx.com. View company contacts for 117 employees →

RD Rich Dodele Rich Dodele Colleague at GcxPetaluma, California, United States View → PG Paddy Gilbert Paddy Gilbert Colleague at GcxNovato, California, United States View → VC Vernadette Cornelio Vernadette Cornelio Colleague at GcxSan Francisco Bay Area, United States View → AB Amanda Bouchard Amanda Bouchard Colleague at GcxPetaluma, California, United States View → CT Caitlin Thompson Caitlin Thompson Colleague at GcxNovato, California, United States View → BC Bassaya Coulibaly Bassaya Coulibaly Colleague at GcxEl Paso, Texas, United States View → NG Nv Gb Nv Gb Colleague at GcxMelrose, New York, United States View → HJ Habbas Jabbas Habbas Jabbas Colleague at GcxMesa, Arizona, United States View → MC Menchie Cornelio Menchie Cornelio Colleague at GcxPetaluma, California, United States View → CD Carsten Dewner Carsten Dewner Colleague at GcxHaren, Lower Saxony, Germany View →
FAQ

Frequently asked questions about Ronnessa Witthaus

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

What company does Ronnessa Witthaus work for?

Ronnessa Witthaus works for GCX.

What is Ronnessa Witthaus's role at GCX?

Ronnessa Witthaus is listed as Customer Service Supervisor at GCX.

Where is Ronnessa Witthaus based?

Ronnessa Witthaus is based in Santa Rosa, California, United States while working with GCX.

What companies has Ronnessa Witthaus worked for?

Ronnessa Witthaus has worked for Gcx, Gcx Corp, and Northwest Insurance.

Who are Ronnessa Witthaus's colleagues at GCX?

Ronnessa Witthaus's colleagues at GCX include Rich Dodele, Paddy Gilbert, Vernadette Cornelio, Amanda Bouchard, and Caitlin Thompson.

How can I contact Ronnessa Witthaus?

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