About LaSalle

LaSalle Network is a staffing, recruiting and culture firm.

LaSalle Network was started in 1998 under the belief that if we hired great people, and trained and developed them, the end result would be outstanding service to our candidates and clients. Having grown every single year since inception, including through two recessions, we've realized one thing to be true: a great culture results in outstanding delivery. As our business has grown, we've expanded to new markets and new service offerings. We continue to change and improve so we can help our clients achieve their goals and their vision.


At LaSalle, we value our people so we can care about yours.

Our mission is to hire and retain the best internal staff in our industry. By doing this, there is no doubt our customers, clients and our candidate base will receive the best service and delivery possible.

August 17, 1998

LaSalle Network opened its doors for business with three employees and a goal to work differently…to value employees, to help companies grow, and job seekers find roles that are right for them.

March 2001

LaSalle Network opens a second office in the Chicagoland suburbs.

August 5, 2007

LaSalle Network was recognized for the first time as one of Inc. Magazine’s 500/5000 Fastest Growing Privately Held Companies in America. LaSalle has made the list every year since, tallying 11 consecutive years…something less than 1% of companies in the country can claim.

December 2009

Despite the recession, LaSalle Network grew. We were able to keep our entire staff and avoid layoffs during a tough economic time. We also were one of the few Chicago companies to see modest growth.

January 2016

LaSalle Network was the first staffing and recruiting firm ever to be honored on Glassdoor’s list of Best Companies to Work For in the country.

August 2, 2017

LaSalle Network expanded again to the Music City in Nashville, Tennessee.

January 2018

LaSalle Network celebrated a huge milestone, earning its 100th award for company culture and growth since its inception.

Tom Gimbel

Tom Gimbel

Founder, CEO

Tom Gimbel is the Founder and CEO of LaSalle Network. ...

Tom Gimbel is the founder and CEO of LaSalle Network, a national staffing, recruiting and culture firm headquartered in Chicago. LaSalle Network has business units including accounting & finance, administrative, call center, healthcare revenue cycle, human resources, management resources, marketing, sales, supply chain, technology, and executive search.

LaSalle Network has been listed on the Inc. 5000 “Fastest-Growing Privately Held Companies in America” list for 12 years, Inc. magazine’s 2016 and 2018 “50 Best Workplaces,” Forbes’ 2018 and 2019 “America’s Best Professional Recruiting Firms,” Fortune’s “Best Small & Medium Companies to Work For” and “Best Workplaces in Consulting & Professional Services” in 2018 and 2019, and Crain’s Chicago Business’ “Best Places to Work” list from 2014 to 2018.

With over 25 years of industry experience, Gimbel is an expert on sales, hiring, corporate culture and management/leadership, contributing to Inc., Fortune and The Wall Street Journal. Gimbel also appears frequently on CNBC, TODAY, Fox Business Network, and in The New York Times, Fast Company, and Crain’s Chicago Business.

Gimbel is on the Board of Directors of the Ounce of Prevention, the American Staffing Association and Lurie Children’s Hospital Foundation. He also has been an active member of Young Presidents’ Organization for the last 10 years as well as of the Economic Club of Chicago.

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Maureen Hoersten

Maureen Hoersten

Chief Operating Officer

As Chief Operating Officer for LaSalle Network, Maureen Hoersten is responsible for driving and managing new and existing business, as well as overseeing our recruiting functions....

She has been instrumental in building LaSalle Network’s client base and sales program. Her role includes creating and executing sales strategies; coaching and training a business development team, as well as a project management team; identifying, attracting and engaging key target clients and cultivating and growing client relationships.

Originally hired as a Business Development Manager in 2003, Maureen was an early leader in developing LaSalle Network’s suburban presence. Growing key clients in the retail, entertainment, business services, food and beverage and healthcare industries, Maureen has placed more than 3,000 job seekers with some of the best small, medium and large sized businesses.

Maureen has an uncommon depth of knowledge in staffing and recruiting having been in the industry since 2003 and working with startups and Fortune 500 companies. She understands individual and organizational goals and concerns to effectively deliver top talent.

In 2016, Maureen was honored as one of the Chicago Business Journal’s Women of Influence.

Maureen has a BA from The University of Iowa.

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Krisi Rossi O’Donnell

Krisi Rossi O’Donnell

Chief Recruiting Strategist

Krisi Rossi O’Donnell has over thirteen years of experience in the staffing and recruiting industry, and has placed professionals in technology, accounting, finance and executive leadership positions. ...

She is responsible for managing the internal process for identifying, qualifying and placing candidates, as well as helping to strategize the expansion and growth of LaSalle Network.

Krisi started her career at LaSalle in February 2004 as a junior project manager. She has earned numerous internal accolades, and was subsequently promoted to Unit Manager in 2007, Associate Director in 2010, Director in 2012, Managing Director in 2012, Vice President of Staffing and Recruiting in 2013, and Chief Recruiting Strategist in 2017.

Krisi has a BA from St. Louis University.

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Lawrence Casas

Lawrence Casas

Chief Financial Officer

Lawrence is a Certified Public Accountant, with over 20 years of experience in the staffing and recruiting industry....

Prior to joining LaSalle Network, Lawrence owned a practice specializing in part-time controller/CFO services, as well as providing accounting and tax services. Previously, Lawrence was a chief financial officer of a technology services firm in Chicagoland. Prior to that, Lawrence spent over six years as a controller in the staffing industry.

As the Chief Financial Officer of LaSalle Network, Lawrence oversees all aspects of internal accounting and is responsible for financial management and reporting, process and procedures and financial and business analysis.

Lawrence was recognized with the Daily Herald’s CFO of the Year in 2013.

Lawrence graduated with a BS in Accountancy from University of Illinois at Urbana-Champaign.

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Sirmara Campbell

Sirmara Campbell

Chief Human Resources Officer

Sirmara Campbell has over 20 years of experience in the staffing and recruiting industry, starting her career at LaSalle Network shortly after its inception in 1998. Sirmara is an experienced human resources professional whose expertise lies in helping LaSalle Network maintain a healthy and productive company culture. She is also certified as a professional in human resources....

Over the past 20 years, Sirmara has assumed roles in accounting, operations and human resources. Sirmara has been involved in the planning and execution of nearly all LaSalle’s new initiatives in the last 20 years, including most recently, compliance with the Affordable Care Act. Highlights of Sirmara’s accomplishments include a Field Employee benefit plan, a rare and differentiating service in the staffing industry, and creation and implementation of a detailed onboarding program for new hires to ensure a smooth transition into LaSalle Network employment.

In addition to her human resources responsibilities, Sirmara handles all LaSalle Network operations functions, including best practice procedures, in order for LaSalle to operate at a high level of efficiency, quality and professionalism.

Sirmara was recognized on Crain’s Chicago Business’ 2020 list of Influential HR Leaders, by Workforce Magazine as a Workforce Game Changer and by the Daily Herald Business Ledger among its list of Influential Women in Business.

Sirmara has a BA from Columbia College Chicago.

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