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Solicitation, total small business set-aside

33330226RF0010010 Indefinite Delivery Indefinite Quantity (IDIQ) for Construction Services in Washington DC Metropolitan Area

33330226RF0010010

Smithsonian Institution, Smithsonian Institution. Commercial and Institutional Building Construction.

Offers due

November 9, 2026 at 3:00 PM EST

9 days from now. Posted October 29, 2026, first published September 1, 2026.

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Description

As published on SAM.gov.

Amendment 3 -   Ommit clauses, updated link and RFI responses. (See attachment)

Amendment 2 -  Extend the proposal and RFI's due dates. (See attachment)

Amendment 1 - Extend the proposal due date. (See attachment)

The Smithsonian Institution seeks interested Small Business contractors to establish multiple Small Business Indefinite Delivery / Indefinite Quantity (IDIQ) Contracts with construction firms to provide construction services between $1 million to $8 million per project. The NAICS code is 236220 for Commercial and Institutional Building Construction. This announcement is for the selection and award of one or more Contracts that will support construction needs in our facilities for the Washington, DC Metropolitan area and surrounding facilities such as the Smithsonian Conservation Biology Institute in Front Royal, VA and the Smithsonian Environmental Research Center, Edgewater, MD.

REQUEST FOR CLARIFICATIONS It is desired that all questions/clarifications be sent in, sequentially numbered for example first questions 1,2,3, second set of questions 4,5,6, etc. in word format to ColemanSI@si.edu

It is requested that all questions be sent in no later than October 12, 2026 at 3PM EST. No site visit has been arranged, if you feel a site visit is warranted, please send an email requesting one.

Qualifications are to be submitted by 3:00PM ET November 9, 2026 to Dropbox Link: https://www.dropbox.com/request/gy0wr7le8oqp3rmm3o6x 

Attachments

Files listed on SAM.gov. The ones we hold a copy of download from here; the rest open SAM's download, which needs no account.

Publications

Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.

  1. September 1, 2026

    Solicitation

    Due October 6, 2026 at 3:00 PM EDT. SAM.gov, notice 69438f12b7214153953d1d6d72be43a6

    1 revisions on SAM
    • September 1, 2026: publish, solicitation
  2. September 29, 2026

    Presolicitation

    Small Business Construction IDIQ Washington, DC Metropolitan Region

    Due October 16, 2026 at 11:59 PM EDT. SAM.gov, notice 14ea906860764beeaa114b7afe01fc8d

    1 revisions on SAM
    • September 29, 2026: publish, presolicitation
  3. October 6, 2026

    Solicitation

    Due November 9, 2026 at 3:00 PM EST. SAM.gov, notice 9eb9576ca12f4ebeb0d68e6bb0c57928

    2 revisions on SAM
    • October 6, 2026: publish, solicitation
    • September 1, 2026: publish, solicitation
  4. October 29, 2026

    Solicitation

    Due November 9, 2026 at 3:00 PM EST. SAM.gov, notice aefb3e4ed58a47c5abcd1beb0b7f837b

    3 revisions on SAM
    • October 29, 2026: publish, solicitation
    • October 6, 2026: publish, solicitation
    • September 1, 2026: publish, solicitation

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