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美國環境系統研究所公司（Environmental Systems Research Institute, Inc. 簡稱ESRI公司） 
美國環境系統研究所公司（Environmental Systems Research Institute, Inc. 簡稱ESRI公司）成立于1969年，總部設在美國加州RedLands市，是世界最大的地理信息系統(GIS)技術提供商。
多年來，ESRI公司始終將GIS視為一門科學，并堅持運用獨特的科學思維和方法，緊跟IT主流技術，致力于為全球各行業的用戶提供先進的GIS技術和全面的GIS解決方案，開發出了豐富而完整的產品線。目前，ESRI公司的ArcGIS系列軟件已成為中國用戶群體最大，應用領域最廣的GIS技術平臺。
ESRI中國（北京）有限公司作為ESRI在中國大陸的唯一分支機構，稟承ESRI公司一貫的探索精神和獨樹一幟的管理風格，以開放、合作、以人為本和對社會負責為立身之本，并結合多年來為中國用戶技術支持與集成的經驗，為廣大中國用戶提供滿足今天需要的服務，更為其將來的發展奠定堅實的基礎的先進的技術構架。ESRI中國（北京）有限公司同時還為中國用戶提供遙感圖像處理解決方案和eYaImage影像壓縮工具的銷售和技術支持服務。
When we began this company back in 1969, we felt an almost limitless enthusiasm for the possibilities of geographic information systems (GIS). We understood even then that this new geographic information system technology could bring about a better future.

Our confidence in GIS is built on the belief that geography matters. It fundamentally influences and connects our many cultures and societies. As you explore our Web site, you will find abundant evidence that GIS technology is improving our quality of life by supporting more analytical decision making.

ESRI GIS and Mapping Software [PDF]
ESRI: Creating GIS for a Better World
—View video
Our technology helps fight forest fires, determine new national boundaries during peace negotiations, find promising sites for new facilities, support optimal land-use planning, route emergency vehicles, monitor climate change, contain oil spills, and perform countless other vital tasks.

GIS technology must constantly evolve to meet the changing needs of business, industry, government, and education. We are ready for these changes. Today, ESRI has thousands of skilled employees who work closely with hundreds of business partners and international distributors and tens of thousands of users. Each one makes a unique contribution to this remarkable technology. Each one makes a difference.