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View STP's top competitors like ANSI - American National Standards Institute, API - American Petroleum Institute, and ASTM International.

Intertek
Intertek is a leading Total Quality Assurance provider to industries worldwide. Our network of more than 1,000 laboratories and offices in more than 100 countries, delivers innovative and bespoke Assurance, Testing, Inspection and Certification solutions for our customers' operations and supply chains. Intertek is a purpose-led company to Bring Quality, Safety and Sustainability to Life. We provide 24/7 mission-critical quality assurance solutions to our clients to ensure that they can operate with well-functioning supply chains in each of their operations. Our Customer Promise is: Intertek Total Quality Assurance expertise, delivered consistently, with precision, pace and passion, enabling our customers to power ahead safely. Find all of our Intertek locations at: https://www.intertek.com/contact/
UK
Private
$4.4B Revenue
https://www.intertek.com
31.4K Employees
Daikin Air Condition
UL is a global leader in advancing safety science and has more than a century of expertise innovating safety solutions — from the public adoption of electricity to breakthroughs in sustainability, renewable energy and nanotechnology. Dedicated to promoting safe living and working environments, UL safeguards people, products and places in important ways, facilitating trade and providing peace of mind. UL evaluates more than 19,000 types of products, components, materials and systems annually with 20 billion UL Marks appearing on 72,000 manufacturers'​ products each year. The UL family of companies includes 68 laboratory, testing and certification facilities serving customers in 102 countries.
IN
Private
$2.9B Revenue
http://www.ul.com
56 Employees
TÜV Rheinland Group
Neutral, independent third party For more than 150 years, TÜV Rheinland has stood for ensuring quality, safety, and efficiency in conjunction with people, the environment, and technology. As a neutral, independent third party, we test, accompany, develop, promote and certify products, plants, processes and management systems as well as services based on legal requirements and other relevant performance benchmarks and standards. In addition, TÜV Rheinland qualifies specialists and trains people for numerous companies and areas of business and life. Using knowledge meaningfully Our greatest capital is based on over 20,000 clever minds: concentrated knowledge. It is our enormous pool of experience from which the people at TÜV Rheinland create exceptional substance and inspiration for their meaningful work. The results of their work can be discovered everywhere: in tested elevators or rides, on certified toys or technical equipment, in our advice or training. No matter where - our international teams have been setting standards in terms of safety, quality and efficiency for many years.
DE
Private
$2.5B Revenue
http://www.tuv.com/impressum
18.6K Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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