Märkisches Werk Halver
Manufacturer of cylinder head components for two stroke and four stroke engines. Includes product overview and company profile.
http://www.mwh.de/

How Two-stroke Engines Work
A car engine uses a four-stroke cycle -- how can two strokes accomplish the same tasks? Learn all about the two-stroke engine, where it's used and how it compares to a four-stroke.
http://www.howstuffworks.com/two-stroke.htm

Marine Diesels
construction, operation, running and maintenance of large slow speed two stroke crosshead diesel engines such as Sulzer, MAN BW and Mitsubishi, and medium speed four stroke trunk piston diesel engines such as Wartsila, Pielstick, Sulzer, MAK etc, as found in the majority of ocean going merchant vessels Learn about problems which can be encountered such as scavenge fires and crankcase explosions, and how to prevent them Find out how the engine power is calculated using the Mean Indicated Pressure, discover how the engine starts using compressed air and how Turbocharging works
http://www.marinediesels.co.uk

Simonini Flying
Two stroke engines for paramtors.
http://www.simonini-flying.com/

Two Stroke International
2 stroke engines, lightweight engines, diesel engines, gearboxes, jetpumps,
http://www.2si.com/

Argo USA
Argo Scooters Home page
http://www.bajajusa.com

Dolphin Engines
Dolphin Engines - British made marine auxiliary two stroke engine for leisure and racing yachts
http://www.dolphinengines.co.uk

Tecumseh UK Ltd.
Tecumseh Power International distribute power train products and engines for consumer, industrial and commercial powered equipment applications
http://www.tecumsehuk.co.uk

S.E.M.T. Pielstick
Ensures the design, manufacturing, sale and after-sales service of 4-stroke high and medium-speed Diesel engines ranging from 500 to 26 500 kW.
http://www.pielstick.com/

Adaptive Materials Technology Ltd. (USA)
Technopolis Ventures Oy on Suomen suurin teknologia- ja osaamispohjaisia yrityksiä palveleva yrityshautomo. Kehitysohjelmissamme on yli 180 asiakasta pääkaupunkiseudulla, Oulussa, Lappeenrannassa ja Jyväskylässä.
http://www.otech.fi/otech/AdaptaMat/