Jan Greulich
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Jan Greulich Email & Phone Number

Billing Manager at Qualigence International
Location: Detroit Metropolitan Area, United States 16 work roles 1 school
1 work email found @bluestonechildrenscenter.com 1 phone found area 248 LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email j****@bluestonechildrenscenter.com
Direct phone (248) ***-****
LinkedIn Profile matched
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Current company
Role
Billing Manager
Location
Detroit Metropolitan Area, United States
Company size

Who is Jan Greulich? Overview

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Quick answer

Jan Greulich is listed as Billing Manager at Qualigence International, a with 70 employees, based in Detroit Metropolitan Area, United States. AeroLeads shows a work email signal at bluestonechildrenscenter.com, phone signal with area code 248, and a matched LinkedIn profile for Jan Greulich.

Jan Greulich previously worked as Billing Manager at Bluestone Children’S Center and Project Consultant at Qualigence International. Jan Greulich holds Bs, Education from Concordia University-Seward.

Company email context

Email format at Qualigence International

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

About Jan Greulich

Update 2019In October 2018 I joined Bluestone to help this startup get off on the right foot. This amazing center offers ABA therapy to children, ages 2-7, on the autism spectrum.I retired at the end of December 2017 for the third and final time. I’m looking forward to spending time with our grandchildren and traveling with George.Prior to retirement, I worked for Visiant as a Senior Business Analyst in their Southfieldd location.In September of 2015, I finished my third expat experience with my husband. His job has taken us to Australia, South Korea and, for the last two years, China. Living overseas has been an adventure that we have enjoyed for six of the last twelve years.I owned and managed a martial arts studio in Livonia with a Korean Grand Master for three years. We closed the business when Master Jeong could not get a new visa to remain in the US.I was hired to manage the billing and collection department of a large national law firm headquartered in Detroit.Hired and trained audit staff for an insurance broker and TPA to review carrier invoices against customer bills to improve accuracy and reduce loss.Manager in charge of billing, collections and company banking relationships for an environmental consulting firm over a period of 23 years. Managed a total of 20 staff in 10 states and held annual meetings in various states to promote teamwork and consistency throughout the department.As part of the executive team at the corporate office, I was involved in due diligence activities from both ends of the transaction at different times and assisted in integration plans for acquired offices.

Listed skills include Management, Training, Finance, Accounting, and 13 others.

Current workplace

Jan Greulich's current company

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Qualigence International
Qualigence International
Billing Manager
livonia, michigan, united states
Website
Employees
70
AeroLeads page
16 roles · 48 years

Jan Greulich work experience

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

Billing Manager

Current
Bluestone Children’S Center

Livonia, Michigan

Oct 2018 - Present

Retired

Senior Business Analyst

600 E Lafayette, Detroit

Jan 2017 - Dec 2017

Retired

Chongqing City, China

I am currently living with my husband in Chongqing, China while he's on an expat assignment from JCI.

Sep 2013 - Apr 2016

Co-Owner And Administrative Manager

Mind, Body & Seoul Martial Arts Llc

Livonia, Mi

Mind, Body & Seoul Martial Arts will offer classes for all ages in Taekwondo, Korean Kick-boxing, Self-Defense and cardio Kick-boxing.Sam Jeong, Master Instructor and co-owner is a 7th degree black belt in Taekwondo, 9th degree black belt in Korean Kick-boxing and 8th degree black belt in Hapkido, Korean self-defense.

May 2011 - Mar 2014

English Teacher

None -

I am working part time teaching English in Anyang South Korea while we're living here.

Jul 2010 - Jul 2011

Manager, Billing And Collections

Hired to manage the billing and collection functions at a large national law firm headquartered in Detroit.

Oct 2007 - Oct 2010

Manager, Billing & Collections

Dykma Gossett Pllc

Managing a department of about 20 billing/collection staff in 10 offices around the country. Responsibilities included staffing, training, coaching, reporting to Members at Dykema and serving on a Financial Review committee with a team of Members. I provided presentations on billing and collection topics to members in their respective locations and at annual meetings. My role was to increase the accuracy and timeliness of invoicing and to improve collections.

2007 - 2010 ~3 yrs

Manager, Invoice And Auditing

I was hired to reorganize the billing and auditing function for an insurance broker and third party administrator. During the last year, I hired and trained staff to audit carrier invoices and, using automation, reduced the back log and improved the accuracy of the audits.

Nov 2006 - Oct 2007

Assistant Treasurer/Hr Director

Clayton Group Services, Inc.

-Managed an HR staff of 5 for a 500-person environmental consulting firm with offices in 11 states-Participated in due diligence activities during the sale of the firm to an equity investment group-Part of the due diligence team for, and coordinated the integration of, a small acquisition in Boston-Participated in the selection of a new 401k provider and handled the transition to the new plan

2000 - 2002 ~2 yrs

Assistant Treasurer/Avp

Clayton Environmental Consultants

-Responsible for daily borrowing activities and maintaining adequate collateral levels to meet the firm’s financial needs-Developed and gave, for staff and management in each office, a presentation on the importance of maintaining high collateral levels and how each employee’s work impacted collateral numbers-Supervised a total billing/collection staff of 25 spread over 10 offices

1995 - 2000 ~5 yrs

Manager Of Billing And Collections

Clayton Environmental Consultants

-Joined corporate staff to supervise accounts receivable and billing functions for all Clayton offices-Streamlined accounts receivable functions and significantly reduced the days outstanding receivables -Turned the accounting employees in separate offices into a unified team through annual meetings to provide face-to-face contact and training sessions

1993 - 1995 ~2 yrs

Laboratory Technician

Clayton Environmental Consultants, Inc.

-Worked in numerous departments in the laboratory doing sample analyses -Served as afternoon shift supervisor for 4 years-Learned to work within a professional business environment and with all levels of management

1986 - 1993 ~7 yrs

Supervisor Of Billing And Collections

Clayton Environmental Consultants, Inc.

-Responsible for billing and collection function for the Novi laboratory, then for the Midwest office-Reduced the days’ receivable numbers through diligent collection strategies while maintaining strong customer relations

1983 - 1993 ~10 yrs

Secondary Teacher

Lutheran High School Association

Taught biology, algebra and geometry at the high school level.

1979 - 1981 ~2 yrs
Team & coworkers

Colleagues at Qualigence International

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1 education record

Jan Greulich education

FAQ

Frequently asked questions about Jan Greulich

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What company does Jan Greulich work for?

Jan Greulich works for Qualigence International.

What is Jan Greulich's role at Qualigence International?

Jan Greulich is listed as Billing Manager at Qualigence International.

What is Jan Greulich's email address?

AeroLeads has found 1 work email signal at @bluestonechildrenscenter.com for Jan Greulich at Qualigence International.

What is Jan Greulich's phone number?

AeroLeads has found 1 phone signal(s) with area code 248 for Jan Greulich at Qualigence International.

Where is Jan Greulich based?

Jan Greulich is based in Detroit Metropolitan Area, United States while working with Qualigence International.

What companies has Jan Greulich worked for?

Jan Greulich has worked for Bluestone Children’S Center, Qualigence International, Visiant Health, Mind, Body & Seoul Martial Arts Llc, and None -.

Who are Jan Greulich's colleagues at Qualigence International?

Jan Greulich's colleagues at Qualigence International include Cherry Briningstool, Megan Wild, Alison Muller, Robert King, and Joseph Schad.

How can I contact Jan Greulich?

You can use AeroLeads to view verified contact signals for Jan Greulich at Qualigence International, including work email, phone, and LinkedIn data when available.

What schools did Jan Greulich attend?

Jan Greulich holds Bs, Education from Concordia University-Seward.

What skills is Jan Greulich known for?

Jan Greulich is listed with skills including Management, Training, Finance, Accounting, Accounts Receivable, Outlook, Customer Service, and Leadership.

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