Pennsylvania produces roughly 80% of all pretzels consumed in the United States. That concentration of manufacturing capacity is not a coincidence — it is the result of over a century of specialized labor, localized ingredient networks, and technical expertise built around snack production. For CPG brands evaluating contract manufacturing partners, the state offers options across virtually every snack category, from nutritional bars to artisan kettle chips.

This guide covers the ten leading co-manufacturers operating in Pennsylvania today, with enough technical and certification detail to make a real shortlist.

1. Tandem Foods — Pittsburgh, PA

Best for: Nutritional bars, wafers, better-for-you snacks

Formed in 2024 through the merger of TruFood Manufacturing and Bar Bakers LLC, Tandem Foods now operates eight facilities across Pennsylvania, New York, and California. The production setup includes eight cold-form sheeting lines, two extrusion lines, five one-shot chocolate moulding lines, and two wafer ovens — a combination that covers most formats in the wellness snack category.

Certifications include SQF, BRC, Organic, Non-GMO Project Verified, GFCO (gluten-free), OU Kosher, and Halal. Their “LaunchPad” R&D labs allow clients to develop and test custom formulations before committing to full production runs. For brands that need multiple dietary claims on a single SKU, Tandem Foods’ certification stack is one of the most complete in the region.

2. G&S Foods — Hanover, PA

Best for: Seasoned pretzels, snack mixes, private label

G&S Foods opened a 348,344 square foot facility in Hanover in 2024, making it one of the largest co-manufacturing investments in the Pennsylvania snack corridor in recent years. The company was founded in 1996 and has since built its entire model around contract production — it holds no competing internal brands, which removes the channel conflict that can complicate co-manufacturing relationships.

Their technical edge is precision seasoning and complex blend mixing, capabilities that were expanded through the acquisition of Tastysnack Quality Foods. Certifications cover SQF, BRC, and Kosher. The scale of the new facility supports high-volume national grocery accounts.

3. Dieffenbach’s Snacks — Womelsdorf, PA

Best for: Kettle chips, root vegetable chips, clean-label premium

A third-generation family business with over 50 years in kettle frying, Dieffenbach’s operates six production lines capable of processing traditional potatoes, sweet potatoes, and root vegetable blends. The facility uses fresh produce rather than dehydrated flours, which directly affects taste and texture. Partners can select from multiple cooking oil types, including organic and non-GMO options, and develop custom seasonings on-site.

The facility is BRC Grade AA certified and also holds Pennsylvania Certified Organic, Non-GMO Project Verified, Kosher, and Vegan designations. Dieffenbach’s operates as a zero-waste facility, which matters for CPG brands that publish sustainability metrics in their ESG reports.

4. Warrell Creations — York, PA

Best for: Confectionery enrobing, panning, nut clusters, seasonal products

Warrell Creations, now part of the Wolfgang Confectioners network, has specialized in indulgent snack production since 1965. Their core capabilities are enrobing (coating pretzels, cookies, and dried fruits in chocolate or yogurt coatings) and panning (both chocolate and hot sugar panning for nuts and small items). These processes require strict temperature and humidity controls to produce consistent shell quality and shelf stability.

New product development follows a Stage Gate Process, making Warrell particularly effective for limited-time offerings that require quick sample-to-production turnarounds. Quality certifications include SQF, BRC, and Kosher.

5. Keystone Food Products — Easton, PA

Best for: Tortilla chips, extruded snacks, organic and natural lines

Founded in 1946, Keystone Food Products handles tortilla chips, corn snacks, onion rings, veggie sticks, and extruded formats. The facility is equipped with nitrogen flush packaging for shelf-life extension and automated vertical form-and-fill bagging systems. An on-site laboratory, supplemented by third-party testing through Silliker Food Safety & Quality Solutions, provides in-line and finished product verification.

Certifications include SQF, BRC, Organic, and Halal — a combination that positions Keystone well for brands targeting the natural foods channel. Their turnkey model covers ingredient sourcing through co-packaging.

6. Bickel’s Snack Foods — York, PA

Best for: Full-line salted snacks, private label portfolios

Bickel’s, a Hanover Foods subsidiary, was built through the acquisition of York Snacks, the Bon Ton Potato Chip facility, and the Wege Pretzel Company. The result is a multi-plant operation covering potato chips, hard pretzels, corn snacks, and snack mixes from dedicated facilities in York and Hanover. Each plant specializes in a specific product category, while sales and customer service operate under a centralized structure.

This setup is practical for grocery retailers that want to consolidate a full private label snack program with a single supplier. Packaging options span single serve to club size for chips, and both branded and private label bags for pretzels.

7. Savor Street Foods — Reading, PA

Best for: Artisan pretzels, allergen-free production, nut-free environments

Savor Street Foods (formerly The Bachman Company) has over 145 years of baking history. The company’s engineers developed the first automatic pretzel twisting machine in 1936, and the facility still combines traditional brick ovens with modern automated equipment. Their 120,000 square foot bakery operates as a certified nut-free and tree nut-free environment — a meaningful differentiator for brands that need to put allergen claims on packaging.

Certifications include SQF, Kosher, and Certified Gluten-Free. Roughly 10% of the workforce consists of adults with autism, a deliberate employment model the company believes strengthens operational consistency. For brands that want a co-manufacturing partnership they can use in their own brand story, Savor Street is one of the few options in the region that offers that.

8. National Pretzel Company — Lancaster, PA

Best for: High-volume private label pretzels, national retail programs

National Pretzel Company, a TreeHouse Foods subsidiary, operates three bakeries — two in Pennsylvania (Lancaster and Hanover) and one in Visalia, California — giving it national production coverage. The company employs approximately 700 people and produces minis, honey wheat braided twists, sticks, rods, sourdough nuggets, and hard pretzels across all facilities.

Because National Pretzel does not produce branded products, all capacity and investment goes toward private label efficiency. This is the relevant consideration for retailers building high-volume store-brand programs where price-per-unit and consistency across distribution centers are the primary variables.

9. Herr Foods Inc. — Nottingham, PA

Best for: Diverse salted snacks, Direct Store Distribution access

Herr Foods is the largest privately owned snack food company in the United States, with over 340 SKUs and annual sales exceeding $250 million. The Nottingham campus includes separate facilities for potato chips and for pretzels and corn products (the latter in nearby Oxford). Third-party food safety audits and advanced seasoning application machinery support consistent output across all lines.

The strategic differentiator for co-manufacturing clients is Herr’s Direct Store Distribution (DSD) network, which covers the Mid-Atlantic and Midwest. A brand that manufactures through Herr Foods can potentially access that distribution infrastructure — a logistical advantage that most standalone co-manufacturers cannot offer.

10. Unique Snacks — Reading, PA

Best for: Specialty pretzels, innovation-led formats, clean-ingredient positioning

Managed by the sixth generation of the Spannuth family, Unique Snacks built its reputation on slow-baked “Splits” and “Shells” pretzels — formats that require specialized oven configurations that high-speed facilities typically do not operate. In 2020, the company rebranded from Unique Pretzel Bakery to Unique Snacks and added extruded formats like “Puffzels” to its catalog. The workforce grew by over 140% in four years following that pivot.

Certifications include SQF, Non-GMO Project Verified, and USDA Organic (for Sprouted Splits). The facility meets FSMA standards. For brands looking to enter the premium or specialty snack segment with a differentiated format, Unique’s technical capabilities cover ground that commodity-scale facilities cannot.

How to Narrow Down the Right Partner

The right co-manufacturer depends on three factors: product format (which determines which processing technologies you need), dietary certifications required by your target retail channel, and minimum order quantities relative to your current volume.

Tandem Foods and G&S Foods are the strongest options for brands that need scale and multiple certification types simultaneously. Dieffenbach’s, Savor Street, and Unique Snacks are better fits for brands where product differentiation — clean label, allergen claims, specialty formats — is the primary competitive lever. National Pretzel and Bickel’s are built for retailers managing large private label programs with consistent reorder volumes.

Pennsylvania’s density of specialized manufacturers means that most CPG snack formats have at least two or three capable partners within the state — which gives brand owners negotiating leverage and supply chain redundancy that wouldn’t exist in a less concentrated region.