business
Blacksmith Software, Sona Technologies Lease 26K SF on Fifth Avenue

Blacksmith Software and Sona Technologies have signed a combined 26,000-square-foot office lease at 245 Fifth Avenue, a Manhattan building owned by Moinian, according to Commercial Observer.
How much space did the two tenants lease?
The filing reported by Commercial Observer puts the combined footprint at 26,000 square feet inside the Fifth Avenue tower. The outlet did not break out the figure by tenant, so it is not clear how much of that total belongs to Blacksmith Software versus Sona Technologies. Lease length, asking rent and move-in date were not included in the available reporting.
Where is 245 Fifth Avenue and who owns it?
245 Fifth Avenue sits in Manhattan, and the building is controlled by Moinian, the landlord named in Commercial Observer's report. The outlet did not specify additional details about the property's size, other tenants or recent renovation history in the material reviewed for this report. Readers looking for floor plans, asking rents elsewhere in the building, or the building's full tenant roster should consult the original Commercial Observer story, which carries the underlying lease filing.
Is Blacksmith Software connected to the blacksmithing trade?
No link between the company and the metalworking craft appears in the available reporting. Blacksmith Software is named as an office tenant, not a forge operator or tool maker, and nothing in the source material ties the company's work to bladesmithing, farriery or any other hand-forging trade covered elsewhere on this site. The overlap is in name only.
What details remain undisclosed about the deal?
Commercial Observer's report, as summarized by Google News, does not list a lease term, rent figures, or a timeline for when either company will occupy the space. It does not name the brokers involved or say whether either company previously occupied space elsewhere in New York. Those gaps mean this report is confined to what was confirmed: the tenant names, the combined square footage, the address and the landlord.
Why does an office lease show up on a blacksmithing site?
The story surfaces here because a tech company's name echoes a centuries-old trade name, not because of any craft connection. The item is included for readers tracking how company names in unrelated industries occasionally intersect with search terms tied to blacksmithing. For reporting on the trade itself, see Commercial Observer's original story and the building's landlord record for further documentation.
What is confirmed
- 26,000 square feet leased combined by Blacksmith Software and Sona Technologies
- Building address: 245 Fifth Avenue, owned by Moinian
No additional lease terms, dates or financial figures were available in the source material reviewed.
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Questions
How much office space did Blacksmith Software and Sona Technologies lease?
The two companies signed a combined 26,000-square-foot lease at 245 Fifth Avenue, according to Commercial Observer.
Who owns 245 Fifth Avenue?
The building is owned by Moinian, the landlord named in Commercial Observer's report on the lease.
Is Blacksmith Software related to blacksmithing or metalworking?
No connection appears in the available reporting. Blacksmith Software is an office tenant named in a commercial real estate filing, not a company tied to the forging trade.