Engineering Software Lab Ltd (ESL) (Hebrew: אי.אס.אל. מערכות תוכנה בע"מ‎) is an Israeli software company headquartered in Ramat Gan, Israel. ESL's core business is as a value-added reseller (VAR) for software products. ESL also provides consultancy and integration services for commercial software products and custom software development.Until 2014 ESL used to designs and develops a wide range of own-label and white-label products.