New business filings in San Francisco

What this page is4,539 rows held · newest sealed read 2026-08-29

• We hold 4,539 companies from San Francisco, each kept with the day it first reached us.
• We have read this file on 54 days, from 26 Jun 2026 to 29 Aug 2026.
• On 53 of those days the file gave us at least one company we did not already hold.
• The last day a new company arrived was 29 Aug 2026, and 30 arrived that day, covering 28 different company names. 26 of those names had never appeared in this feed before. The day before that was 28 Aug 2026, so the newest comparison on this page is 28 Aug 2026 against 29 Aug 2026.
• San Francisco publishes every registered business location. We read the rows whose trading name started inside a rolling window, and we skip the ones the city has already marked closed.
• The last time we read it, the file returned 2,430 rows inside the window we ask for. Almost all were companies we already held, which is why a day's arrivals are a much smaller number.

Real rows out of our sealed copies

These are rows we read out of dated copies we keep ourselves. The live source shows today only, so once a row moves, what it said before is gone from the place you would go to look.

What this page cannot tell you

• We keep each filing once, on the day we first see it. That means this page can show you what appeared. It cannot show you a company that was taken off the city's list, and it cannot show a field changing on a company we already hold.
• This is San Francisco's own file and nothing else. It is not every company trading in the metro, and we do not claim it is. Every row on this page came from https://data.sfgov.org/resource/g8m3-pdis.json.
• San Francisco's file never fills in what it is licensed to do, licence standing and map position, so those columns are not on this page at all. The city never published them and we will not invent them. San Francisco's file only sometimes fills these in: what the city calls the trade on 2,063 of 4,539 rows, trade code on 2,072 of 4,539 rows and postcode on 4,536 of 4,539 rows. Where a cell in the table is marked blank, that is the city's gap, not ours. Columns left off the table above because every row we are showing had them blank: what the city calls the trade.
• Some rows are a person trading under their own name rather than a company. The city's file does not mark which, so neither do we. Every address on this page is cut back to the street: we print 957 Fell St, never the flat or unit number the city prints after it. A suite or a PMB stays, because an office is not a home. Nothing has been removed from the city's file or from our copy of it -- this is a rule about what we republish, not about what we hold. 1 row withheld: residential address. That one is counted across the 30 companies that entered our copy on 29 Aug 2026, not across the rows printed above -- the printed table is the shorter list, and you cannot subtract one number from the other. Where the name on a record is a person's own and the address beside it carries a flat or unit number, we do not publish that row at all.
• 11 of the 65 days between 26 Jun 2026 and 29 Aug 2026 brought back no file with rows in it: 4 Jul 2026, 8 Jul 2026, 15 Jul 2026, 8 Aug 2026 and a 7-day stretch from 11 Aug 2026 to 17 Aug 2026. A business registered and struck off inside one of those gaps was never in front of us, and a quiet stretch on this page is us not looking as often as it is the city being quiet.

More from this feed

• Up one level: New business filingsThe whole feed, its price, and how the file arrives.
• What is and is not in this feedEvery source we read for it, how often, and the ones we refuse to collect.