Twitter Inc., the social media giant that was evicted from its Boulder office in December, is now accused of stiffing the office’s cleaning company on the way out.

Avalanche Commercial Cleaning, of Boulder, sued Twitter on Thursday in Boulder County District Court as it tries to collect $93,504 from the $20 billion company.

Avalanche said it was hired by Twitter in mid-2015 and kept 1301 Walnut St. clean from then until Dec. 19, 2022, when Twitter terminated its contract and asked Avalanche to send an invoice for the cleaning it had done in October, November and December.

Avalanche said it sent that invoice but Twitter never paid it. So, it’s suing.

An email requesting comment from Twitter’s public relations department was not answered. Instead, the department auto-replied to the email with a smiling poop emoji — the company’s standard response to media inquiries since March.

Twitter moved to Boulder in 2014 when it acquired Gnip, a local data startup. It once occupied the Walnut Street building as well as 65,000 square feet in central Boulder, according to past reports by BizWest. In May 2022, its Walnut Street space went on the market.

Six months later, under the unpredictable leadership of new owner Elon Musk, Twitter laid off 87 employees in Boulder and another 38 resigned, according to BizWest.

1301 Walnut St., known as the Wencel Building, is managed by W.W. Reynolds Cos., which is based in Boulder. In December, the landlord posted an eviction notice on the door of 1301 Walnut St. and accused Twitter of owing it $179,000 in back rent. Attorneys for W.W. Reynolds declined to say in recent days whether it has collected that money.

In its lawsuit, Avalanche Commercial Cleaning is represented by attorney Brian Luther of Flatiron Legal Services in Boulder. He declined to discuss the case Friday.

Twitter’s alleged decision to not pay its landlord or cleaners at 1301 Walnut fits a pattern that followed Musk’s high-profile takeover last October. To cut costs, Twitter stopped paying rent at all of its offices and refused to pay vendors, according to media reports.

This story was reported by our partner BusinessDen.