📞 Call (636) 200-9050 – Talk to Our Sourcing Team
Nationwide Food Ingredients Company & Manufacturer Services
Diversified Ingredients is a food ingredients company and integrated ingredient manufacturer serving pet food, feed, and human food manufacturers across the United States. Our four divisions integrate sourcing, processing, storage, and logistics under one partner. Diversified Ingredients is an integrated food ingredient company that manages sourcing, processing, storage, and logistics for food, feed, and pet food manufacturers through a single partner relationship.
We are among the food ingredients companies with nationwide reach, and we also function as food ingredient manufacturers through our processing divisions. Our company has been in continuous operation since 1987 — 39 years of building the relationships, processing capabilities, and freight network that integrated ingredient sourcing requires. Our four divisions cover dairy processing (Preston Protein Products since 1910), rice sourcing (Riverside Rice), rail transloading (DI Meadville), and transloading and distribution (IDS).
Working with multiple ingredient vendors creates real friction for manufacturers. Different vendors mean different paperwork, different freight schedules, different audit packages. Quality questions get bounced between suppliers. Supply chain visibility gets fragmented. We get it. Our integrated network — sourcing, processing, storage, and logistics under one partner — was built to reduce that friction.
Read more about our integrated network on our About Us page.
What an Integrated Food Ingredients Company Does
An integrated food ingredients company brings sourcing, processing, storage, transloading, and logistics together under a single partner. Through our four divisions, we also operate as food ingredient manufacturers — processing fluid dairy and producing functional dairy blends through Preston Protein Products. Our integrated services include:
- Sourcing across multiple ingredient markets (dairy, rice, grains, proteins, specialty)
- Dairy processing and drying through Preston Protein Products
- Rice sourcing through Riverside Rice
- Bin storage for specialty grains
- Flat storage for rendered products and specialty pet food ingredients
- Rail transloading at DI Meadville
- Transloading and distribution at IDS
- Quality assurance and regulatory documentation
- Trucking, rail, ocean freight, import, and export
Food Ingredients We Distribute and Manufacture
- Grains and pulses: rice, barley, peas, flax, oats, beet pulp, ancient grains and seeds
- Proteins: animal proteins, plant proteins, eggs, alfalfa, yeast, fish products, fresh meats
- Dried dairy (manufactured by Preston Protein Products): whey, casein, lactose, milk powders, butter powders, cheese powders, functional dairy blends
- Starches, fats, and oils: starches, fats and oils, slurries, emulsifiers
- Specialty: dried fruits, dried eggs, sweeteners, nuts, fibers, colorants, functional ingredients, yeasts and extracts
- NonGMO and organic options
Our Four Divisions
- Preston Protein Products — dairy processing and drying since 1910, joined Diversified Ingredients in 2020
- Riverside Rice — sources brown rice, rice hulls, and other rice products from quality farms
- DI Meadville — rail transloading, storage, and distribution center with bin storage for specialty grains, flat storage, and a fleet of trucks
- IDS (Ingredient Distribution & Storage) — transloading and distribution center with flat storage for rendered products, imported meals, and specialty pet food ingredients, plus bin storage, screening capabilities, and a truck fleet
Quality Assurance and Regulatory Documentation
Our quality assurance team supports compliance with:
- FDA requirements
- USDA requirements
- FSVP compliance for imported items
- SQF, BRC, and customer-specific audits
Director of Compliance Jennifer Bleicher leads regulatory and quality work. Each shipment travels with Certificates of Analysis, allergen statements, country-of-origin records, and traceability information. Read more on our Quality Assurance page.
Logistics, Warehousing, and Transloading
Our logistics services cover:
- Trucking and rail
- Transloading
- Warehousing
- Import, export, and ocean freight
Distribution centers operate in Pennsylvania (DI Meadville) and Missouri (IDS – Ingredient Distribution & Storage).
Industries We Serve
- Pet food manufacturers
- Livestock feed producers
- Human food and nutrition companies
A Word About Our Reputation
Diversified Ingredients has built a strong reputation across the food manufacturing community as a reliable sourcing partner. Our experienced sales and operations teams focus on solving sourcing problems for buyers who need fast answers. Industry contacts describe us as professional and established. We are a trusted supply chain partner because we communicate clearly and follow through.
Sustainability and Community
Our sustainability work covers shifting freight from truck to rail when possible, supporting co-product recovery to reduce manufacturing waste, sourcing ingredients responsibly, and offering NonGMO Project Verified and organic options. Our community partners include Camp Rainbow, the Collin McAtee Charitable Fund, and the World Pediatric Council.
Industry Memberships
- U.S. Dairy Export Council (USDEC)
- American Dairy Products Institute (ADPI)
- American Feed Industry Association (AFIA)
- Pet Food Institute (PFI)
- USA Rice Federation
- AAFCO
Service Areas Nationwide
Our network reaches manufacturing operations across the country:
- Northeast: New York City, Philadelphia, Boston, Pittsburgh
- Southeast: Charlotte, Atlanta, Jacksonville, Nashville, Miami
- Midwest: Chicago, Indianapolis, Columbus, Detroit, Minneapolis, Kansas City
- South Central: Houston, Dallas, Austin, San Antonio, Fort Worth, Oklahoma City
- Mountain West: Denver, Phoenix, Salt Lake City, Las Vegas
- West Coast: Los Angeles, San Diego, San Jose, San Francisco, Seattle, Portland
See our Service Areas page for more detail.
Client Testimonials & Reviews for Diversified Ingredients
“Great company! Led by even greater people. Dave Dressel is one of the finest and most honest individuals I’ve had the pleasure of meeting and getting to know. He knows this industry very well and you can trust his word!”
— Stephen Wigginton, Wigginton Law Firm LLC (via Alignable)
Recommended Diversified Ingredients on Alignable as a respected business partner.
— Bridget Nations, Fenton Area Chamber of Commerce
Frequently Asked Questions
What does it mean to be a nationwide food ingredients company?
An integrated food ingredients company combines sourcing, processing, storage, transloading, and logistics under one partner. Diversified Ingredients integrates these capabilities across four divisions.
Are food ingredients companies the same as food ingredient manufacturers?
The terms overlap. We function as both — sourcing, distributing, and processing through our four divisions. Through Preston Protein Products, we manufacture functional dairy blends. Through Riverside Rice, we source rice from quality farms.
What food ingredients do food ingredients companies distribute?
Our portfolio covers grains, pulses, plant and animal proteins, dried dairy, starches, fats and oils, fibers, sweeteners, dried fruits, dried eggs, ancient grains, nuts, and functional ingredients.
What divisions does the food ingredients company operate?
Preston Protein Products (dairy processing), Riverside Rice (rice sourcing), DI Meadville (rail transloading), and IDS (transloading and distribution).
How do food ingredients companies handle freight?
Our logistics services include trucking, rail, transloading, warehousing, import, export, and ocean freight.
How long has the food ingredients company been in business?
Diversified Ingredients has been in continuous operation since January 1987 — 39 years as of 2026. Preston Protein Products has been processing dairy since 1910.
Key Takeaways
- Diversified Ingredients integrates sourcing, processing, storage, and logistics through four divisions
- Functions as both food ingredients company and food ingredient manufacturer
- Preston Protein Products processes and dries dairy since 1910
- Riverside Rice sources rice products from quality farms
- DI Meadville and IDS provide rail transloading, bin storage, and flat storage
- Quality team supports FDA, USDA, and FSVP documentation
- Memberships include USDEC, ADPI, AFIA, PFI, USA Rice Federation, and AAFCO
Conclusion
Reliable integrated ingredient sourcing simplifies procurement for manufacturers running complex programs. Call Diversified Ingredients at (636) 200-9050 or visit diversifiedingredients.com to connect with our team. Our headquarters address for shipping and correspondence is 870 Woods Mill Rd, Ballwin, MO 63011. View on Google Maps.