Non-US Citizens: Get your Singapore Business visa with the TDS San Francisco Office

Please send TDS your current valid and signed passport. It must not expire within 6 months of your last day in Singapore and must have at least one blank visa page. Foreign Embassies cannot issue a visa on a page not labeled as a Visa page. Amendment and Endorsement pages in the back of the passport cannot be used for issuance of a visa.
A visa cannot be stamped on a page even if only one Small Stamp is on the visa page. If your passport expires within 6 months, you must renew your passport and then we will secure your visa with the new passport.

Also send two photocopies of Passport (from Page 1 to passport validity date, including the US visa page

Please send 1 recent professional passport-type photograph.
Digital and non-passport photographs are not acceptable.
Passport Photo Guide - Click Here

Original or notarized copy of Permanent Resident Card (Green Card) or valid U.S. visa and I-94 is required.
Travelers who entered the USA after April 26th 2013 should print the electronic I-94 form from the
Department of Homeland Security.

If you are returning to USA after visiting Singapore, please produce a valid US visa or the relevant documentary proof confirming your returnability such as INS Parole Paper, etc.;

A photocopy of confirmed onward air ticket and your flight itinerary. A valid visa to the next destination should be obtained (if applicable).
The Embassy does not recommend purchasing your ticket prior to a visa being issued.

Please Send One Completed Letter of Introduction.

A business letter of responsibility is required if you are traveling for business purposes , to be typewritten on your company letterhead and addressed to:
Consulate of Singapore, Visa Section, San Francisco CA
The letter must explain all of the following:
Nature of business to be performed
Name and address of reference to be visited
This letter should request Multiple Entries visa if required
Guarantee of return transportation and sufficient funds for the visit
The letter should be signed by an officer of the company other than the applicant.

Singapore Business Profile Documentation
Provide a copy of the latest profile from the Instant Information Service, Accounting Regulatory Authority (ACRA) of the inviting company in Singapore.

And

Letter of Invitation from a Singapore registered company is required. (Letters of Invitation from US companies are not acceptable.)

Separate instructions apply if you are Bangladesh, Chinese, Indian, Myanmar, Russian or CIS countries passport holders.

Indian Citizens: Please provide a letter confirming the need for a Single, Double or Multiple entry visa. Also provide a day time phone number.
Bangladesh Citizens: Please provide a letter confirming the need for a Single, Double or Multiple entry visa. Also provide a day time phone number.
Chinese Citizens: Please provide a letter confirming the need for a Single, Double or Multiple entry visa. Also provide a day time phone number.
Myanmar Citizens: Please provide a letter confirming the need for a Single, Double or Multiple entry visa. Also provide a day time phone number.
Russian Citizens: Please provide a letter confirming the need for a Single, Double or Multiple entry visa. Also provide a day time phone number.
CIS Countries: Please provide a letter confirming the need for a Single, Double or Multiple entry visa. Also provide a day time phone number.

Please Send One Completed and Signed Application Form.