Anthropic Employees Told to Work From Home Over Strike Threat: Union Says It Never Threatened One

Anthropic instructed its San Francisco employees to work from home on Monday and Tuesday after Allied Universal warned of a possible security-worker strike. However, the Service Employees International Union (SEIU), which represents many of the guards, said it had not called a strike authorisation vote or issued any strike threats for the week.

Tensions Run Deep

SEIU has been negotiating with Allied Universal and other California security firms since April. Workers are seeking higher wages, better healthcare benefits, and more comprehensive training, with the union representing thousands of security officers across the state.

Anthropic isn't involved in the negotiations. The potential labour action nevertheless affected its operations.

Why the Company Sent Everyone Home

Anthropic temporarily kept San Francisco staff out of its offices as concerns over security coverage persisted. The company generally follows a hybrid work policy, with job postings stating that staff are expected to spend at least 25% of their time in one of its offices.

Anthropic declined to comment on the decision. An Allied Universal spokesperson said, 'We continue to closely monitor the situation and remain focused on maintaining safe and reliable operations.' The incident comes as major AI companies face growing security concerns, including reported threats involving employees at Anthropic and OpenAI.

The Timing Is Hard to Ignore

The timing is notable as the artificial intelligence company prepares for a potential blockbuster IPO that could value the company at around $2T and raise as much as $100B, according to reports. Reports indicate that Anthropic plans to pitch investors on a total addressable market of more than $30T. That figure refers to its estimated total addressable market, not guaranteed revenue.

If achieved, a $2T valuation would put Anthropic among the world's most valuable companies. The company is also rapidly building out its infrastructure. The Claude developer also plans to spend about $45B to rent AI computing capacity from Nscale under a six-year agreement.

Allied Universal Has Its Own Legal Headaches

The dispute comes as Allied Universal faces a separate lawsuit filed on 11 August. A federal complaint filed in California names Universal Protection Services, doing business as Allied Universal Security Services, over the alleged theft of two shipping containers from a Mercedes-Benz facility in Fontana.

The complaint alleges that guards failed to properly monitor surveillance footage, detect unauthorised vehicles entering the property, conduct patrols, and control access to the facility. The lawsuit seeks roughly $858,000 for merchandise allegedly stolen from the containers.

The Risk of Relying on Contractors

The incident highlights a broader challenge for fast-growing technology companies: the risks that can come with relying on outside contractors.

The negotiations are unfolding amid broader concerns over pay, benefits, and working conditions across the security industry. A July 2026 UC Berkeley Labour Centre report found that 71% of security guards earn below the MIT living-wage benchmark, while 43% lack employer or union-provided health insurance. Turnover in the security services industry reached 89% in 2024, compared with 66% across the private sector.

The Berkeley report also links job quality to public safety, noting that higher pay and lower turnover can improve the quality and reliability of security services. It calls for standardised training and responsible contracting, as well as clearer career pathways to make security work a more stable occupation.