Current Members

To report changes to your contact infomation as listed in the Current Members list, click here or send an email to Membership@HTRI.net


  • OAO “VNIPIneft”

    Website
  • Officine LUIGI RESTA S.p.A.

    Website
  • OFMECO Pressure Components S.r.l.

    Website
  • Ohmstede Ltd.

    Website
  • Oil and Gas Equipment Industries

    Website
  • Oilfields Supply Center Ltd.

    Website
  • "Oktyabrskhimmash" LLC

    Website
  • Olayan Descon Engineering Company

    Website
  • Onda S.p.A.

    Website
  • OOO "Gribanovskiy Mashinostroitelniy Zavod"

    Website
  • OOO ThyssenKrupp Industrial Solutions (RUS)

    Website
  • Operadora CICSA, S.A. de C.V.

    Website
  • Optimus Industries, LLC

    Website
  • ORLEN Projekt S.A.

    Website
  • Ormat Systems Ltd.

    Website
  • Örnalp Unozon AB

    Website
  • Osaka International Refining Company, Limited

    Website
  • OXEA Bishop LLC

  • OXEA Corporation

    Website