📞 Call (636) 200-9050 – Talk to Our Plant Protein Sourcing Team
Nationwide Soy Manufacturer Services
Diversified Ingredients provides commercial soy and plant protein sourcing for pet food, feed, and human food manufacturers across the United States. Diversified Ingredients supplies soy protein, soy flour, and plant protein ingredients to food, feed, and pet food manufacturers looking for a consistent, wholesale plant-based protein source.
We are a soy manufacturer with nationwide reach. Our team has been sourcing ingredients since 1987, and our portfolio includes soy and plant protein alongside our broader food, feed, and pet food ingredient lineup.
Sourcing soy and plant protein carries real pressure. Crop yields shift season to season. Supply chain disruptions hit unpredictably. Specifications get tightened. Audit-ready documentation gets pulled at deadline. We get it. Our team has built our processor relationships, freight networks, and quality programs to soften those blows.
Read more on our Ingredients page.
What a Soy Manufacturer Does
A wholesale soy manufacturer sources, stores, ships, and documents soy and plant protein for manufacturers who use it as an ingredient input. Our customers include:
- Pet food manufacturers using plant proteins
- Livestock feed producers
- Meat alternative and plant-based food brands
- Bakery and snack producers
- Supplement formulators
- Beverage and ready-to-drink companies
Soy Manufacturer Products We Distribute
Our soy and plant protein portfolio includes:
- Soy protein concentrates and isolates
- Soy flour and soy meal
- Other plant proteins (pea protein, alfalfa)
- NonGMO Project Verified soy options
- Organic soy options
We source soy products rather than manufacturing them ourselves. Soy ingredients move into pet food, livestock feed, bakery, beverage, supplement, and meat alternative formulations.
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).
Our Divisions
- Preston Protein Products — dairy processing and drying since 1910, joined DI in 2020
- Riverside Rice — sources rice products from quality farms
- DI Meadville — rail transloading center
- IDS — transloading and distribution center
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 products does a nationwide soy manufacturer distribute?
Our portfolio includes soy and plant protein and related specialty fractions. NonGMO and organic options are available when customers request them.
How does a soy manufacturer handle freight nationwide?
Our logistics services include trucking, rail, transloading, warehousing, import, export, and ocean freight.
What documentation does a soy manufacturer provide?
Certificates of Analysis, allergen statements, country-of-origin records, and traceability information for FDA, USDA, FSVP, SQF, BRC, and customer-specific audits.
Does a soy manufacturer offer NonGMO and organic options?
Yes. NonGMO Project Verified and organic options are sourced when customers request them.
What industries does a soy manufacturer serve?
Pet food, livestock feed, and human food and nutrition manufacturers.
How long has Diversified Ingredients been a soy manufacturer?
Diversified Ingredients has been in continuous operation since January 1987 — 39 years as of 2026.
Key Takeaways
- Diversified Ingredients sources soy and plant protein as part of its broader portfolio
- Quality team supports FDA, USDA, and FSVP documentation
- Logistics network covers trucking, rail, transloading, warehousing, import, and export
- Distribution centers operate in Pennsylvania and Missouri
- Memberships include USDEC, ADPI, AFIA, PFI, USA Rice Federation, and AAFCO
- In continuous operation since 1987
Conclusion
Reliable soy and plant protein sourcing supports plant-based and traditional formulations alike. Call Diversified Ingredients at (636) 200-9050 or visit diversifiedingredients.com to connect with our plant protein sourcing team. Our headquarters address for shipping and correspondence is 870 Woods Mill Rd, Ballwin, MO 63011. View on Google Maps.