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Saint Christopher(St. Kitts) and Nevis |
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Saint Lucia |
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Saint Vincent and the Grenadines |
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Samoa |
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San Marino |
Azienda autonoma di stato filatelica |
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Sao Tome and Principe |
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Saudi Arabia |
Saudi Post |
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Senegal |
La Poste |
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Serbia |
PTT Communications "Srbija" |
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Seychelles |
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Sierra Leone |
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Singapore |
Singapore Post Pte Ltd |
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Slovakia |
Slovenska Posta |
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Slovenia |
Posta Slovenije d.o.o. |
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Solomon Islands |
Solomon Post |
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Somalia |
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South Africa |
South African Post Office |
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Spain |
Correos y Telegrafos |
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Sri Lanka |
Sri Lanka Post |
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Sudan |
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Suriname |
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Swaziland |
Posts & Telecommunications Corporation |
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Sweden |
PTS National Post and Telecom Agency

Posten Sweden Post |
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Switzerland |
Die Post |
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Syrian Arab Rep. |
Syrian Post |
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