The Ultimate Guide to Choosing a Contract Filling & Packaging Company
- March 25, 2024
- Resources
A contract packager, also known as a contract manufacturer, is a company that provides services that are either not performed by the primary company or are needed to address capacity constraints, cost, or capability limitations.
There is a range of variation among contract manufacturers. Some liquid filling contract manufacturers for consumer-packaged goods offer ancillary services such as kitting, shrink wrapping, 3PL, and more. Some contract manufacturers are limited to solely filling, capping, and labeling bottles, jars, and tubes; while other contract manufacturers provide turnkey solutions that include product and package design, creating and validating formulations, and procuring the complete bill of materials for the finished goods.
When selecting a contract manufacturer, the company must assess its internal needs, as well as the certifications that may be required for its product composition and end use by the customer or consumer. For example, in the food services, medical device, over-the-counter, and nutraceutical sectors, industry-specific certifications and third-party audits may be mandatory. Such qualifications intersect with cGMP guidelines and the contract manufacturer’s quality management system. Contract filling and packaging companies, such as USC Pack, place a high priority on continual improvement relative to quality enhancements by following ISO standards, updating their QMS annually, and training team members per documented process and procedures to ensure adherence to internal and external quality guidelines.
How Does a Company Start the Process of Evaluating a Contract Filling and Packaging Company?
Quality Standards, Certifications, and Regulatory Compliance
Start by confirming industry certifications, compliance, regulatory, and labeling requirements. Although many contract manufacturers will provide guidance, it is important that the brand owner also be familiar with state and federal guidelines. When shipping product to international markets, each country will have its own import requirements. One resource that may prove helpful when conducting information gathering is to contact one of the leading associations for the industry for your brand. Leading associations will often provide guidance or targeted resources to address your specific needs. Another source for international label and compliance guidance is testing, inspection, and certification companies such as SGS, Intertek, or Bureau Veritas.
Production Capacity and Volume
Next, find a contract manufacturer that has the capacity to meet your demand. Some contract manufacturers have a minimum order quantity of 2,000 units while others may start at 25,000 units. The small-scale contract manufacturers cater to brands that are in the early start-up phase, or mature brands in niche segments that have minimal distribution or lesser turns, or for companies that seek to keep minimal inventory on-hand. For products that are sold at higher turns in retail or with large direct-to-consumer turnover, utilizing a large-scale manufacturer may be essential to ensure timely shipments to your customers.
Level of Service
After identifying the size of the company, evaluate the level of service needed. A toll provider, where your company supplies the formula and all materials, aligns well for companies that have a broad range of established internal resources, whereas a turnkey contract filling and packaging manufacturer is well suited for companies that do not have the internal resources for product design, formulating, procurement, warehousing, and more.
If your company’s need is for toll, meaning that your organization is self-sufficient regarding procurement, supply chain management, warehousing to store raw materials and components, formulators for products that have chemical ingredients, and more, then you are seeking a contract filler and packager that offers modest levels of blending or batching and a primary focus on contract filling of liquids only.
If your needs are for a robust range of services, then you are seeking a turnkey provider that not only offers contract filling services of liquids and packaging, but additionally the full support of product and packaging design, procurement, warehousing, formulating, batching, and more. Some contract filling companies also offer kitting — when a variety of standalone items are combined into one package, typically in a sealed bag, chipbox, or another container. USC Pack offers both toll and turnkey manufacturing solutions for contract filling, packaging, and kitting.
Cost and Budget
The next criteria to evaluate is budget. Some contract manufacturers have steep startup costs and higher margins, whereas others work on leaner overhead models with more competitive per-unit pricing at scale. Establish your target cost per unit based on your retail price and margin requirements before entering conversations with manufacturers, so you can evaluate quotes against a real benchmark rather than in a vacuum.
Communication and Partnership
Beyond capability and cost, the quality of communication during the evaluation process is itself a signal of how the manufacturing relationship will function. A manufacturer who responds promptly, answers questions specifically, and is transparent about what they can and cannot do is demonstrating the operational culture you will be relying on once production begins.
For brands who are earlier in the evaluation process and still deciding whether they need a contract manufacturer, co-packer, or something in between, see our overview of co-packing services and our complete buyer’s guide to finding a contract manufacturer.
Frequently Asked Questions
What is a contract filling and packaging company?
A contract filling and packaging company provides the equipment, labor, and expertise to fill a liquid or chemical product into containers, apply closures and labels, and prepare finished goods for distribution. Some offer only filling and packaging. Others, including full-service contract manufacturers, also handle formulation development, raw material sourcing, blending, warehousing, and fulfillment. The right type depends on where your product is in development and what internal resources your company has.
What is the difference between toll filling and turnkey filling?
In toll filling, you supply the formula and all materials. The contract filler provides the equipment and labor to fill and package. In turnkey filling, the manufacturer sources all materials, develops or manages the formula, and delivers finished goods. Toll is better suited for brands with their own supply chain infrastructure. Turnkey suits brands who want a single partner managing the full process. See our comparison of toll vs. turnkey manufacturing for a detailed breakdown.
What certifications should I look for in a contract filling company?
ISO 9001 is the baseline quality management certification. Depending on your product and target market, you may also need a partner with experience supporting EPA Safer Choice, USDA BioPreferred, OMRI, or CARB-compliant formulations. For products sold through major retailers, confirm whether the manufacturer has completed any required vendor audits or third-party quality assessments for your specific retail channel.
How do I evaluate whether a contract filler has enough capacity for my needs?
Ask specifically how many filling lines they operate, what the line speeds are, how production is scheduled, and what the typical lead time is from purchase order to shipment for a product like yours. Also ask how they handle capacity during peak demand periods and what their process is when a production run needs to be expedited. Vague answers to specific capacity questions are a signal worth noting.
What information do I need to get an accurate filling quote?
A complete quote requires your product specification (viscosity, pH, chemical class), your container spec (dimensions, material, closure type), your label format, your target fill weight or volume, your run quantity, and any regulatory requirements. Quotes based on partial information produce wide-range estimates that are not useful for real decision-making. Prepare as complete a spec package as possible before your first conversation.
Ready to Evaluate Your Options?
USC Pack provides contract filling and packaging for household, automotive, leather care, fabric care, and specialty chemical products from our Corona, CA facility. Our seven filling lines handle ambient fill, hot fill, chemical-grade filling, and tube filling across container sizes from 1 oz to 5 gallons.
To discuss your product and request a quote, contact our team here. Or review our full contract manufacturing and packaging capabilities.