Our History Services Quality Contact Us
Golden grain field in the Midwest
Serving the Midwest since 1904

Davenport's grain.
Crafted with
family care.

Zoller Bros Independent Malting Co. has been drying, conditioning, and distributing premium grains from the heart of the Quad Cities for over 120 years.

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120+

Years Serving
the Midwest

5★

Grain Quality
Standards

Davenport

Home of
Our Operations

1904

Family-Owned
Since Establishment

Zoller Bros malting facility in Davenport
Historic grain storage at Zoller Bros
1904

Our Story

A Davenport tradition
built on grain.

For more than a century, Zoller Bros Independent Malting Co. has stood as a cornerstone of Davenport's agricultural heritage. Founded in 1904, our family-owned operation grew from a small local grain dryer into one of the region's most trusted malting and grain storage companies.

Today, we continue the same commitment to quality and personal service that our founders built. Farmers, brewers, and distributors across the Midwest rely on us for consistent, carefully handled grain — dried, conditioned, and stored with the same care we'd give our own.

Family-owned since 1904
Quad Cities headquartered
Midwest grain specialists

What We Do

Complete grain solutions
for the Midwest

From drying freshly harvested grain to custom malting and bulk distribution — we handle every step with the attention your crop deserves.

Grain Drying

Professional grain drying services to reduce moisture content safely and efficiently. We handle corn, soybeans, wheat, and other coarse grains with state-of-the-art equipment.

Malting Services

Custom malting for brewers and distillers. We condition and germinate premium barley to produce consistent, high-quality malt for your recipes.

Grain Storage

Secure, climate-monitored grain storage on our Davenport campus. Keep your harvest safe until you're ready to sell — we protect your investment from moisture and spoilage.

Distribution

Reliable grain distribution throughout the Midwest. Whether you're a brewery, feed mill, or grain trader, we get your product where it needs to go — on time and in spec.

Grain Testing

On-site quality testing for moisture, protein, test weight, and grading. Know exactly what you're buying or selling with accurate, professional analysis.

Consulting

Need guidance on grain handling, storage best practices, or market timing? Our team brings decades of experience to help you make smarter decisions for your operation.

Our Standards

Quality you can
trust, every load.

Every bushel that passes through our Davenport facility is handled with precision. From the moment grain arrives at our yard, we track moisture levels, run quality tests, and store under monitored conditions — so you know exactly what you're getting.

Moisture & Temperature Control

Advanced drying and aeration systems keep your grain stable through every season.

Consistent Grading

Professional testing for protein, test weight, and grade — accurate results you can trade on.

Clean, Contaminant-Free Handling

Dedicated equipment and cleaning protocols prevent cross-contamination between loads.

Quality grain inspection at Zoller Bros
Grain testing and quality control
Bulk grain storage facilities
Davenport grain terminal view

What Our Partners Say

Trusted by growers and
brewers alike

"Zoller Bros has been our go-to for grain drying and storage for years. Their team knows our operation and treats every load like it's their own. Honest, reliable, and always around when you need them."

JW
Local Area Farmer
Quad Cities Region

"As a regional brewery, consistent malt quality is everything. Zoller Bros delivers batch after batch with the same care and attention. They've been a genuine partner in our growth."

BR
Regional Brewery Partner
Iowa Craft Beer

"We've worked with grain companies across the state, and Zoller Bros stands out for their personal service. You call, they answer. You need something done, they do it. That's rare these days."

DM
Grain Trader
Midwest Distribution

Ready to work with a team that
cares about your grain?

Whether you're a farmer looking for reliable drying, a brewery needing consistent malt, or a distributor seeking a trusted partner — we'd love to hear from you.

Contact Zoller Bros Today

Get in Touch

Let's talk about
your grain needs.

We're based right here in Davenport and proud to serve the entire Midwest. Give us a call, stop by the yard, or send a message — we'll get back to you promptly.

Visit Us

1801 W 3rd St
Davenport, IA 52802

Call Us

(563) 322-3501

Business Hours

Monday – Friday: 7:00 AM – 5:00 PM
Saturday & Sunday: Closed

Send Us a Message

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