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Team

We believe in the power of innovation and teamwork to drive meaningful change. By blending creativity with cutting-edge technology, we build solutions that make an impact.
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Proud Members of

SIMA Snow & Ice Management Association member badge
National Association of Landscape Professionals (NALP) member logo
Minnesota Nursery & Landscape Association member badge

Meet the Emerald Team

Unlock the Secret to a Healthier, Greener Lawn

At Emerald, we are a passionate group of innovators, creators, and strategists dedicated to bringing fresh ideas to life. Our team thrives on collaboration, sustainability, and a vision for a brighter future.

Joel Wollum

Founder & CEO

Nathan Wollum

Technician

Rylan

Technician

Justin

Operations Manager

Steve

Operations Manager

Edgar

Technician

Justin

Operator

Corey

Technician

Nolan Wollum

Office Manager

Experience the Emerald Difference

At Emerald, we provide top-tier services designed to drive innovation, sustainability, and success. Whether you’re looking for expert solutions, creative strategies, or eco-friendly innovations, our team is here to help.
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Benefits of Aeration Services

Stronger, Deeper Root Growth

Stronger roots develop a more resilient foundation, resulting in a thicker, greener, and healthier lawn.

Improved Soil Structure

Aeration loosens compacted soil, allowing for better water and nutrient absorption.

Reduced Thatch Buildup

Breaks down excess thatch layers, promoting healthy growth and preventing hindrance to plant development.

Improves lawn health effectively

Prevents water pooling, improves drainage, and enhances soil moisture balance for healthier plant growth.

What Our Clients Say

Cindy Niess
Thanks again for the good service.
Your crew did a GREAT job of removing the trees at my brother’s house! Thanks again for the good service.
Jim Illies, Sr.
Looks great.
Looks great. The two guys you have doing it are doing a great job. Like them very much.
Jon-Scott
Thank you for the prompt reply
Thank you for the prompt reply. As I said yesterday, you were the only lawn care person that didn't try to sell me things we did not need. Thank you.
Myron
They were nice and courteous.
Your men did a good job all summer. They were nice and courteous. I was impress how steady they work. Thanks for doing such a good job for us.

Joel Wollum

Founder & CEO

Hello my name is Joel Wollum. I am the owner and founder of Emerald Companies Inc. I founded Emerald Companies back in 1998 and have worked to grow the company ever since. I have made Emerald Companies successful with hard work, quality of service, and customer satisfaction. I am married to my wife, Dana, we have six children and live in the country outside of Foley.

Nathan Wollum

Technician

Hello, my name is Nathan Wollum. I am a Sidewalk, Snow Removal, and Lawn Maintenance Technician. My main roles are sidewalk snow removal and deicing in the winter and landscape maintenance in the summer. I started working for Emerald in 2019. I am a senior in high school. After graduation, I plan to continue growing the business and work full time.

Rylan

Technician

Hi, my name is Rylan. I am a Sidewalk and Snow Removal Technician. During the summer months, I work for Nelson Sanitation. I started working for Emerald in Fall 2023. I am a senior at Sartell High School.

Justin

Operations Manager

Hi, my name is Justin. I am a Lawn Maintenance Operations Manager and Weed Control and Fertilizer Technician in the summer and a Salt Brine Application Technician in the winter. I have been working for Emerald since Summer 2022. I live in Sartell with my wife and our three children.

Steve

Operations Manager

Hi, my name is Steve. I am the Winter Operations Manager for Emerald Companies, Willmar location. My main role is to organize and layout the teams for our snow removal operations. In the summer months I am a local 49er and heavy equipment operator. I began working at Emerald in Fall 2024. I live in Atwater with my wife.

Edgar

Technician

Hello, my name is Edgar. I am a Sidewalk Snow Removal Technician in winter and Lawncare Maintenance Technician in summer. I have been working at Emerald since 2021. I live in Saint Cloud with my wife.

Justin

Operator

Hey, my name is Justin. I am a Snowplow Operator, Mechanic, and Jack of all Trades. I have been working at Emerald since 2020. I live in Saint Cloud with my girlfriend and our two children.

Corey

Technician

Hi, my name is Corey. I am a Sidewalk Snow Removal Technician in the winter and Subcontract Mowing in the summer. I am also the owner of Liberty Lawns. I have been working at Emerald in Spring 2020. I live in Freeport with my wife and our two children.

Nolan Wollum

Office Manager

Hello, my name is Nolan Wollum. I am the Office Manager, Fertilizer Technician, and Snow Plow and Brine Technician. I have been working at Emerald since 2013. I live in Sartell with my wife and our daughter.