About Us

Consolidated Sterilizer Systems has manufactured steam sterilizers (autoclaves) in Boston, Massachusetts since 1946.

Customers worldwide come to Consolidated because we manufacture a product line with the best price, functionality and predictable quality in the industry.

Consolidated markets and sells its products in over 70 countries through qualified sales teams and manufacturer sales representatives, and all of our units are 100% manufactured in the USA.

About Us

Core Values

Customer Service

Customer Service

Treat our customers well; our success depends on their success

Collaboration

Collaboration

Work together and collaborate enthusiastically for the good of the company and our customers

Improvement

Continuous Improvement

Always improve the process or yourself; don’t accept the status quo

Initiative

Initiative

Take initiative to accomplish company and personal goals

Knowledge

Knowledge

Never stop learning new things

Our Mission Statement

The mission of Consolidated is to provide the most reliable and easy-to-use sterilizers while offering the best customer experience. We strive to make it simple for our clients to learn about, procure, integrate, install, operate and service  sterilizers.

Our team at Consolidated is not satisfied with the status quo – we strive to continually improve our products, services, and operations. We foster a culture that encourages collaboration, open communication, customer focus, health, personal growth and learning. We proudly manufacture our products in the U.S.A. while promoting manufacturing in our local communities.

75+ Years of Consolidated Sterilizer Systems

Founded in 1946 by William A. Barnstead Sr., Consolidated Sterilizer Systems was originally known as Consolidated Machine Corporation. During inception, Consolidated’s initial contracts were with the U.S. Department of Defense and focused on the production of rolling door autoclaves and water stills. This work, along with other notable contracts, helped Consolidated quickly build a strong and lasting reputation as an innovator and a technical resource for difficult engineering issues within its fields of expertise.

Today, over 75 years later, Consolidated’s heritage for manufacturing excellence continues, thriving alongside the company’s steadfast commitment to deliver high quality, high performance sterilization solutions. For these reasons, CSS continues to be recognized as an industry leader and one of the most reliable sterilizer manufacturers in the world.

2020s
2010s
2000s
1990s
1980s
1970s
1960s
1950s
1940s
The Future is Bright

The Future is Bright

  • Celebrating 75 years of Consolidated Sterilizer Systems.
  • Supplies autoclaves for COVID-19 vaccine development.
  • Supplies autoclaves for coronavirus research.
  • Launches first-ever Remote Autoclave Validation Services.
  • Rolls out industry-leading autoclave with built-in sustainability features.
  • Received FDA clearance and launched new line of healthcare sterilizers.
A Decade of Innovation & Growth

A Decade of Innovation & Growth

  • Introduces first cloud-connected laboratory autoclave to the US market.
  • Opens online e-store.
  • Ships first X1 sterilizer control system.
  • Relocates to 3 Enterprise Rd, Billerica, MA in 2018.
New Look, New Name, and New Ownership

New Look, New Name, and New Ownership

  • Arthur Trapotsis acquires consolidated.
  • Launches and ships first Advantage Series PLC controlled sterilizer to Novartis.
  • Awarded its first Work Force Training Fund Grant to begin Lean journey.
  • Launches WaterEco Series.
  • Launches ProGen Steam Generator.
  • Launches Model 3AV EZ-Glide vertical sliding door sterilizer.
  • Changes DBA to Consolidated Sterilizer Systems.
  • FDA 510K granted for Consolidated’s healthcare sterilizers.
United States Patents Granted

United States Patents Granted

  • Funded study for research published in The British Journal of Biomedical Science supporting claims that bacteria are released from the autoclave drain line.
  • Awarded patent for effluent decontamination system.
  • Awarded patent for high-pressure sterilization device.
Advancements in Sterilization

Advancements in Sterilization

  • Launches first microprocessor controlled sterilizer with the MC Series.
  • Pursues television license for broadcasting topics on infection control.
  • Launches Tower sterilizer.
Relocation and Expansion

Relocation and Expansion

  • Relocates to 76 Ashford St, Boston, MA.
  • Launches digitally controlled, PB-series (push button) sterilizer.
  • Consolidated Machine adds a DBA: Consolidated Stills & Sterilizers.
Steri-Still™ is Launched

Steri-Still™ is Launched

  • Develops and launches the Steri-Still™.
  • Relocates to 296 North Beacon St, Boston, Ma.
  • Awarded patent for Steri-Still™.
  • Begins manufacturing rectangular sterilizers.
CSS 1950s

First Sterilizers are Developed

  • William A. Barnstead (2nd from left) and Gordon Gillingham (3rd from right) stand with some of our early employees.
  • Develops table-top sterilizer.
  • Develops cylindrical sterilizer for labs and hospitals.
1940s

Our Dream Became a Reality

  • Consolidated Machine Works, 39 Sudbury St, Boston MA, is purchased by William A. Barnstead, Arthur Bland, and Charles Vengrow in 1946. Incorporated as Consolidated Machine Corp in Massachusetts in 1948.
  • Focuses manufacturing on distillation equipment.
  • Receives 100 unit order from US government for water stills.

Driving Innovation in Autoclave Technology

Consolidated Sterilizer Systems has manufactured water stills and steam sterilizers (autoclaves) in Boston, Massachusetts since 1946.

The CSS Leadership Team
William Warren
President and Chief Executive Officer
About William
William Warren
President and Chief Executive Officer

Mr. Warren joined Consolidated Sterilizer Systems in July 2023, shortly after the company was acquired by Bunker Hill Capital. Mr. Warren has extensive experience in the contamination control industry, having spent 13 years at STERIS Corporation, where he held various leadership roles in general management, sales, service and marketing. Earlier in his career, Mr. Warren worked for GE Lighting, as well as started his own successful consumer products company based on a patented technology he developed. Mr. Warren has an MBA from New York University and BS in Economics from Connecticut College.

Bob Young
Vice President, Operations
About Bob
Bob Young
Vice President, Operations

Mr. Young brings 30 years of experience in operations, engineering, quality and finance within vertically integrated manufacturing environments to Consolidated Sterilizer Systems as Vice President of Operations. Previously, Mr. Young was the founder and President of a concept metal working business and General/Operations Manager of a leading specialty metal cutting and fabrication company. Mr. Young graduated from Northeastern University with a BS in Mechanical Engineering.

Lissa Davidson
Director, Human Resources
About Lissa
Lissa Davidson
Director, Human Resources

Ms. Davidson began working at Consolidated in 2000, assuming HR responsibilities in 2008. Ms. Davidson received her B.S. in Public Relations from Syracuse University, and her MBA with a Human Resources Specialization from the University of Massachusetts Boston. Ms. Davidson enjoys putting her education and years of experience at Consolidated to work for the company’s greatest resource – its people.

Amit Gupta
Vice President, Engineering
About Amit
Amit Gupta
Vice President, Engineering

Mr. Gupta has over 15 years of experience engineering multi-disciplinary systems and brings his passion for engineering, innovation, and quality to Consolidated (where he’s been since 2007.) Prior to joining Consolidated, Mr. Gupta worked on robotics at the Charles Stark Draper Laboratories and designed medical devices and scientific equipment such as novel catheters and DNA hybridization chambers for microarrays. A true engineer at heart, Mr. Gupta enjoys tinkering, fixing things by breaking them first and assembling Ikea furniture. He graduated from University of Pennsylvania with a BS in Mechanical Engineering and from MIT with an MS in Mechanical Engineering.

Mike Docktor
Vice President, Finance
About Mike
Mike Docktor
Vice President, Finance

Mr. Dockter brings 17 years of experience in finance and operations with growing manufacturing companies across a variety of industries and countries. Prior to joining Consolidated as VP of Finance, Mr. Dockter worked for Protolabs, a contract digital manufacturer, where he was a key contributor in projects starting up operations in overseas countries, several M&A projects, and an IPO. Mr. Dockter graduated from the University of Minnesota with an MBA and a BS in Accounting. In his spare time Mr. Dockter enjoys running, cooking, and tinkering in the garage with his cars.