Workforce management platform Employer.com has acquired MainStreet.com, a San Jose-based fintech startup, for an undisclosed amount. This move continues Employer.com’s trend of acquiring companies to strengthen its all-in-one business back office solutions. is a key driver behind the acquisition.
Employer.com chairman and co-founder Jesse Tinsley announced the acquisition on X, stating that both companies are “merging forces to simplify business back office solutions into one powerhouse platform.” Tinsley confirmed the deal to TechCrunch in a follow-up interview.
Founded in 2019, MainStreet.com specialized in helping startups uncover, earning revenue by taking a percentage of the savings it secured for clients. In its early days, MainStreet achieved rapid growth—surpassing a $1 million ARR run rate in its first year and helping the average client save $51,000. By 2021, the startup had reached $15 million in annual revenue and was valued at $500 million at its peak, according to the industry newsletter Not Boring.
However, the company faced challenges in 2022, laying off 30% of its staff amid what it described as “an incredibly rough market.” That same year, MainStreet reportedly raised funding at a reduced valuation of $200 million. The startup had raised approximately $75 million in venture capital from firms such as SignalFire, Tusk Ventures.
According to Tinsley, an investor from MainStreet facilitated the introduction between the two companies. MainStreet’s remaining 15-person team will now join Employer.com’s workforce, which totals around 500 employees.
Following the acquisition, Employer.com is now valued at just over $700 million, Tinsley confirmed.
This marks another significant acquisition for the San Francisco-based company. In late 2024, Employer.com acquired Bench, a VC-backed accounting startup that had abruptly shut down and locked out thousands of users. Earlier this year, Employer.com had also attempted to acquire Level, another fintech startup, but the deal ultimately did not go through.
“We’ve always envisioned Employer.com as the G Suite for the business back office,” said Tinsley. “Buying MainStreet is the next step in automating that end-to-end solution.”
Earlier this year, Tinsley also made headlines for reportedly teaming up with YouTuber MrBeast and others in an all-cash bid to acquire TikTok, valued at $30 billion. Although the outcome of that effort remains unclear, Tinsley confirmed in March that he was part of the consortium involved.
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