About OAA

International reach.
Connected perspectives.

Cross-border experience and commercial relationships, supported by direct regional contacts. The geography of our work and the locations of our offices are shown separately.

Experience across markets.

Country references show the reach of development experience and commercial relationships; they do not imply an office or a current engagement in every market.

An international perspective.

Explore the highlighted markets and their regional groups.

OAA international experienceHighlighted countries correspond to the regional lists below. Office locations are shown in a separate map.IndonesiaMalaysiaChileBoliviaPeruArgentinaDhekelia Sovereign Base AreaCyprusIndiaChinaIsraelPalestineLebanonEthiopiaSouth SudanSomaliaKenyaMalawiUnited Republic of TanzaniaSyriaSomalilandFranceSurinameGuyanaSouth KoreaNorth KoreaMoroccoWestern SaharaCosta RicaNicaraguaRepublic of the CongoDemocratic Republic of the CongoBhutanUkraineBelarusNamibiaSouth AfricaSaint MartinSint MaartenOmanUzbekistanKazakhstanTajikistanLithuaniaBrazilUruguayMongoliaRussiaCzechiaGermanyEstoniaLatviaNorwaySwedenFinlandVietnamCambodiaLuxembourgUnited Arab EmiratesBelgiumGeorgiaNorth MacedoniaAlbaniaAzerbaijanKosovoTurkeySpainLaosKyrgyzstanArmeniaDenmarkLibyaTunisiaRomaniaHungarySlovakiaPolandIrelandUnited KingdomGreeceZambiaSierra LeoneGuineaLiberiaCentral African RepublicSudanDjiboutiEritreaAustriaIraqItalySwitzerlandIranNetherlandsLiechtensteinIvory CoastRepublic of SerbiaMaliSenegalNigeriaBeninAngolaCroatiaSloveniaQatarSaudi ArabiaBotswanaZimbabwePakistanBulgariaThailandSan MarinoHaitiDominican RepublicChadKuwaitEl SalvadorGuatemalaEast TimorBruneiMonacoAlgeriaMozambiqueeSwatiniBurundiRwandaMyanmarBangladeshAndorraAfghanistanMontenegroBosnia and HerzegovinaUgandaUS Naval Base Guantanamo BayCubaHondurasEcuadorColombiaParaguayBrazilian IslandPortugalMoldovaTurkmenistanJordanNepalLesothoCameroonGabonNigerBurkina FasoTogoGhanaGuinea-BissauGibraltarUnited States of AmericaCanadaMexicoBelizePanamaVenezuelaPapua New GuineaEgyptYemenMauritaniaEquatorial GuineaGambiaHong Kong S.A.R.VaticanNorthern CyprusCyprus No Mans AreaSiachen GlacierBaykonur CosmodromeAkrotiri Sovereign Base AreaSouthern Patagonian Ice FieldBir TawilAustraliaGreenlandFijiNew ZealandNew CaledoniaMadagascarPhilippinesSri LankaCuraçaoArubaThe BahamasTurks and Caicos IslandsTaiwanJapanSaint Pierre and MiquelonIcelandPitcairn IslandsFrench PolynesiaFrench Southern and Antarctic LandsSeychellesKiribatiMarshall IslandsTrinidad and TobagoGrenadaSaint Vincent and the GrenadinesBarbadosSaint LuciaDominicaUnited States Minor Outlying IslandsMontserratAntigua and BarbudaSaint Kitts and NevisUnited States Virgin IslandsSaint BarthelemyPuerto RicoAnguillaBritish Virgin IslandsJamaicaCayman IslandsBermudaHeard Island and McDonald IslandsSaint HelenaMauritiusComorosSão Tomé and PrincipeCabo VerdeMaltaJerseyGuernseyIsle of ManAlandFaroe IslandsIndian Ocean TerritoriesBritish Indian Ocean TerritorySingaporeNorfolk IslandCook IslandsTongaWallis and FutunaSamoaSolomon IslandsTuvaluMaldivesNauruFederated States of MicronesiaSouth Georgia and the IslandsFalkland IslandsVanuatuNiueAmerican SamoaPalauGuamNorthern Mariana IslandsBahrainCoral Sea IslandsSpratly IslandsClipperton IslandMacao S.A.RAshmore and Cartier IslandsBajo Nuevo Bank (Petrel Is.)Serranilla BankScarborough ReefBarbadosMaldivesBahrain
Highlighted countries · experience & commercial relationships

Europe & the Balkans

  • Albania
  • Austria
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Cyprus
  • Germany
  • Hungary
  • Italy
  • Kosovo
  • Montenegro
  • Romania
  • Russia
  • Serbia
  • Slovenia
  • Sweden
  • Türkiye
  • Ukraine
  • United Kingdom

Middle East & Central Asia

  • Azerbaijan
  • Bahrain
  • Iraq
  • Israel
  • Kazakhstan
  • Kuwait
  • Kyrgyzstan
  • Lebanon
  • Oman
  • Qatar
  • Saudi Arabia
  • Tajikistan
  • United Arab Emirates
  • Uzbekistan

Africa

  • Algeria
  • Angola
  • Burkina Faso
  • Cameroon
  • Côte d’Ivoire
  • Egypt
  • Gabon
  • Ghana
  • Libya
  • Mauritania
  • Morocco
  • Republic of the Congo
  • Senegal
  • South Africa
  • South Sudan
  • Sudan
  • Togo
  • Tunisia

Americas & Asia Pacific

  • Argentina
  • Barbados
  • Brazil
  • China
  • Dominican Republic
  • India
  • Maldives
  • Paraguay
  • Peru
  • United States

Find the relevant contact.

Our office and regional contact addresses connect inquiries with the appropriate location.

Offices & regional contacts.

Select a city to open its address, telephone number and email.

OAA office and regional contact locationsNine office and regional contact locations. Select a city marker to open its contact card.IndonesiaMalaysiaChileBoliviaPeruArgentinaDhekelia Sovereign Base AreaCyprusIndiaChinaIsraelPalestineLebanonEthiopiaSouth SudanSomaliaKenyaMalawiUnited Republic of TanzaniaSyriaSomalilandFranceSurinameGuyanaSouth KoreaNorth KoreaMoroccoWestern SaharaCosta RicaNicaraguaRepublic of the CongoDemocratic Republic of the CongoBhutanUkraineBelarusNamibiaSouth AfricaSaint MartinSint MaartenOmanUzbekistanKazakhstanTajikistanLithuaniaBrazilUruguayMongoliaRussiaCzechiaGermanyEstoniaLatviaNorwaySwedenFinlandVietnamCambodiaLuxembourgUnited Arab EmiratesBelgiumGeorgiaNorth MacedoniaAlbaniaAzerbaijanKosovoTurkeySpainLaosKyrgyzstanArmeniaDenmarkLibyaTunisiaRomaniaHungarySlovakiaPolandIrelandUnited KingdomGreeceZambiaSierra LeoneGuineaLiberiaCentral African RepublicSudanDjiboutiEritreaAustriaIraqItalySwitzerlandIranNetherlandsLiechtensteinIvory CoastRepublic of SerbiaMaliSenegalNigeriaBeninAngolaCroatiaSloveniaQatarSaudi ArabiaBotswanaZimbabwePakistanBulgariaThailandSan MarinoHaitiDominican RepublicChadKuwaitEl SalvadorGuatemalaEast TimorBruneiMonacoAlgeriaMozambiqueeSwatiniBurundiRwandaMyanmarBangladeshAndorraAfghanistanMontenegroBosnia and HerzegovinaUgandaUS Naval Base Guantanamo BayCubaHondurasEcuadorColombiaParaguayBrazilian IslandPortugalMoldovaTurkmenistanJordanNepalLesothoCameroonGabonNigerBurkina FasoTogoGhanaGuinea-BissauGibraltarUnited States of AmericaCanadaMexicoBelizePanamaVenezuelaPapua New GuineaEgyptYemenMauritaniaEquatorial GuineaGambiaHong Kong S.A.R.VaticanNorthern CyprusCyprus No Mans AreaSiachen GlacierBaykonur CosmodromeAkrotiri Sovereign Base AreaSouthern Patagonian Ice FieldBir TawilAustraliaGreenlandFijiNew ZealandNew CaledoniaMadagascarPhilippinesSri LankaCuraçaoArubaThe BahamasTurks and Caicos IslandsTaiwanJapanSaint Pierre and MiquelonIcelandPitcairn IslandsFrench PolynesiaFrench Southern and Antarctic LandsSeychellesKiribatiMarshall IslandsTrinidad and TobagoGrenadaSaint Vincent and the GrenadinesBarbadosSaint LuciaDominicaUnited States Minor Outlying IslandsMontserratAntigua and BarbudaSaint Kitts and NevisUnited States Virgin IslandsSaint BarthelemyPuerto RicoAnguillaBritish Virgin IslandsJamaicaCayman IslandsBermudaHeard Island and McDonald IslandsSaint HelenaMauritiusComorosSão Tomé and PrincipeCabo VerdeMaltaJerseyGuernseyIsle of ManAlandFaroe IslandsIndian Ocean TerritoriesBritish Indian Ocean TerritorySingaporeNorfolk IslandCook IslandsTongaWallis and FutunaSamoaSolomon IslandsTuvaluMaldivesNauruFederated States of MicronesiaSouth Georgia and the IslandsFalkland IslandsVanuatuNiueAmerican SamoaPalauGuamNorthern Mariana IslandsBahrainCoral Sea IslandsSpratly IslandsClipperton IslandMacao S.A.RAshmore and Cartier IslandsBajo Nuevo Bank (Petrel Is.)Serranilla BankScarborough ReefSheridanLondonBerlinAnkaraAjmanSarajevoAsunciónSantiago de los CaballerosGirne
Office and regional contact locations · select a city

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