Customer Support

Quality Management Systems

We are a global company with sales, manufacturing, and distribution facilities in 38 countries. Many of these locations have quality systems that adhere to the requirements of ISO 9001 and have received third party accreditation. We also operates many facilities in compliance with one or more current Good Manufacturing Practices regulation or guideline for APIs, Excipients, and Medical Devices. Other sites are currently working to enhance their current quality systems that would meet the requirements of a recognized standard.

The ultimate measure of our success can be found in the success of our Customers, Shareholders and Employees.

On this page:

Quality System Overview

We have multiple manufacturing locations that are registered with the FDA and operate under cGMP. Many of our other sites are currently working to enhance their current quality systems that would meet the requirements of a recognized standard.

ISO Quality Systems and Certificates

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Regulatory Affairs

Where it is necessary we have the capabilities and resources needed to address regulatory requirements such as Drug Master File (DMF) submissions, CE Mark technical files and Certificate of Suitability ( C of S ) declarations to the appropriate governing body.

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Quality System Details

Strategic Plan and Management Review

We have a comprehensive strategy plan which includes a comprehensive strategic plan which included an emphasis on enhancing the Quality Management System. This plan is continuously evaluated and adjusted to ensure our objectives are achieved. In addition, many locations also conduct Management Reviews of their site Quality Management System at prescribed intervals.

Quality Manual

The majority of locations within we have a Quality Manual, which provides information on the elements of the Quality Management System for that location including the sequences and interactions of the primary processes.

Document Control

Quality Management System policies and procedures are maintained under document control. Procedures include administration, manufacturing, analytical methods, equipment operation and others.


Our sites have established training programs that include core and job specific requirements. Core training can include quality system, safety and developmental topics. In addition to job training, each position has a written job description that describes the necessary educational and experience qualifications to adequately perform the required tasks.

Corrective and Preventive Action

Each site has established a Corrective and Preventive Action procedure to identify areas for improvement to current products and processes and to implement actions that will prevent issues from reoccurring or happening at all.

Customer Complaints

Customer complaints are communicated to the appropriate site for review and if necessary investigation. These locations have procedures that define how the complaint is investigated and, when applicable, the corrective actions implemented. The procedures define the actions necessary to accomplish field corrections or recall. In the event of a recall, affected customers will be identified and contacted.


Internal Audits

Internal audit programs have been established at each location to ensure the integrity and continuous improvement of the Quality Management System.

Customer Audits

Quality audits by our customers are permitted at our facilities. We request that adequate notification be provided (30-days prior to visit) and that an agenda be sent from the customer within 2-weeks of the requested audit date(s). We reserve the right to cancel or revise the audit schedule.

Regulatory Audits

We are willing to offer full cooperation to all requests for Government or regulatory audits of our facilities.

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Supply Chain


Our supplier's (materials & services) can be qualified using a combination of criteria such as, assessment questionnaires, on-site audits, historical performance (quality, on-time delivery) and/or third party accreditation. A supplier may become "Rejected" after non-compliance with the our expectations. New and alternate suppliers are qualified as necessary to maintain product supply, purity and competitiveness.

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QA / QC Staffing

Our Quality Assurance / Quality Control program staffs over 350 employees world-wide at 18 different sites.


World-Wide Locations
QA / QC Staffing
Square Feet
Square Meters
Bellefonte, PA USA 25 personnel 161,500 15,000
Buchs, Switzerland 45 personnel 402,400 37,400
Cambridge, UK 5 personnel 12,000 1,100
Gillingham, UK 7 personnel 55,000 5,100
Hokkaido, Japan 5 personnel 24,700 2,300
Irvine, Scotland 16 personnel 111,000 10,300
Jerusalem Israel 5 personnel 45,000 4,500
Miamisburg, OH USA 8 personnel 61,500 5,700
Milwaukee, WI USA 41 personnel 1,050,000 97,500
Natick, MA USA 2 personnel 30,000 2,800
Rehovot, Israel 6 personnel 80,000 8,000
Poole, UK 3 personnel 113,000 10,500
Saint Louis, MO USA 130 personnel 823,000 76,500
Sheboygan Falls, WI USA 18 personnel 381,000 35,400
Steinheim, Germany 12 personnel 640,500 59,500
Sydney, Australia 2 personnel 882 82
The Woodlands, TX USA 16 personnel 68,000 6,400

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Process Control


Documentation exists for providing appropriate instructions for producing and testing final product. If changes to the manufacturing or testing process is warranted the work instruction document(s) will reflect the procedural change and approval.


Critical equipment, defined as equipment where monitoring and output are controlled and recorded, is maintained in a calibration and testing program. Where applicable, traceable standards (e.g. NIST) are utilized. Documented procedures exist for equipment operation, calibration and maintenance, and can also include how equipment is cleaned. Equipment and usage records are maintained and available. Equipment tags are also employed to further indicate equipment calibration and maintenance status.

Quality Records

Where appropriate quality records for a product’s lifecycle within we are maintained and available, quality records can include: customer inquiries including orders and complaints, raw material information, in-process manufacturing and testing data, packaging, final quality analysis, batch disposition, training and equipment. A product and batch numbering system is employed to allow for traceability throughout the entire process.


When a batch is determined to be nonconforming to product specifications, the batch is "flagged" in our electronic systems and may also be physically labeled and/or segregated to reflect this "blocked" status so as to prevent shipment. Procedures exist to describe this process.

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Specification Control

Incoming Materials

For most materials from our suppliers, Certificates of Analysis are received and reviewed. In addition if warranted, incoming materials may also pass through a physical quality inspection and review process. These materials will be maintained in a "Quarantined" status until the review is complete.


Research and Development, Manufacturing, Quality Control, Quality Assurance and Product Management/ Marketing functions are all involved with establishing product specifications. Customer and regulatory requirements, market demand, and process capability are considered in specification development.

Accessibility and Control

The majority of general catalog product's specifications are available to our customers and employees. A product specification is considered a controlled document, in either an electronic format and/or in hardcopy, and is handled as such, with revision control, approval and issuance. Any special customer specification(s) are maintained as confidential. Confidential specifications are disclosed only to personnel who are authorized access as part of their job function.

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Product / Batch Documentation

Product Specifications & Certificate of Analysis (C of A)

The majority of our products have established product specifications. A product's specification information may be found on the Certificate of Analysis, catalog listing and/or on the label. Certificates of Analysis report batch level information including:

  • Formula & formula weight
  • CAS number
  • Grade
  • Analytical test results
  • QC release date
  • Authorization signature from the site that released the batch.

Certificates of Analysis can be found at , requested from our Technical Service group and/or included in the shipment. Customers will need to contact Customer Service for further information on how to arrange receiving Certificates of Analysis in the product shipment.

Analytical Test Methods

Some of the analytical methods used by the Quality Control groups to test our products are available.

Specific analytical methods can be found at or can be requested from our Technical Service group.

Product Information Sheets

Certain products include a product information sheet, which provides general product information or specific product usage instructions.

Product Information Sheets can be found at , requested from our Technical Service group or may be included in the shipment.

Certificate of Origin

Information regarding the origin of a particular product is provided on a Certificate of Origin. Information can include:

  • Origination Country
  • 2 Source: Animal, Plant, etc.
  • Biologic species: e.g. Bovine
  • Tissue used: e.g. Plasma
  • Additional source information (e.g. Age of animal)

Certificates of Origin can be found at or by request from our Technical Service group.

2 Source definitions:

Animal - An organized living being endowed with sensation and the power of voluntary motion, and also characterized by taking its food into an internal cavity or stomach for digestion; by giving carbonic acid to the air and taking oxygen in the process of respiration; and by increasing in motive power or active aggressive force with progress to maturity.

Plant - A vegetable; an organized living being, generally without feeling and voluntary motion, and having, when complete, a root, stem, and leaves, though consisting sometimes only of a single leafy expansion, or a series of cellules, or even a single cellule.

Synthetic - Produced by synthesis, especially not of natural origin.

Synthesis - Formation of a compound from simpler compounds or elements.

Organic - Of or designating carbon compounds.

Inorganic - Of or relating to compounds not containing hydrocarbon groups.

Natural - existing in or produced by nature (e.g. NaCl).

Microbial - A minute life form; a microorganism, especially a bacterium that causes disease.

Fermentation - Any of a group of chemical reactions induced by living or nonliving ferments that split complex organic compounds into relatively simple substances.

Recombinant - An organism or cell in which genetic recombination has taken place. Material produced by genetic engineering.

BSE / TSE Declaration

Limited to specific products where specific details are known regarding potential exposure to human or animal origin materials during final product manufacturing process. If requested, additional administration processing fees will apply.

Certificate of Suitability (C of S)

When the details are known regarding potential exposure to human or animal origin materials during a product's manufacturing process and the procedures are in-place to reduce the risk of cross contamination, we will determine if a dossier will be filed with the European Directorate for the Quality of Medicines (EDQM) for that specific product. If requested, additional administration processing fees will apply.

Container Label

Product information provided on the container label include:

  • Product and Batch number
  • Product Name
  • Physical chemical properties
  • Risk & safety statements in multiple languages w/pictograms
  • Regulatory information incl. country of origin, usage claim
  • 3 Storage and handling information
  • 4 Customer PO and / or product number

3 We define the following long-term storage conditions on the label:

Shipping Conditions & Recommended Long-Term Storage (38KB PDF)

4 This option is available for bulk orders only, contact the Sigma-Aldrich Fine Chemical Division for details.


Material is available for retest for those batches in stock. Sample quantity availability will vary depending upon the product. Certain products may have retained material from batches no longer available. Inquire on availability for specific products.

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