Mantle (YC F26) — The pit crew for machines and robots
Mantle is a full-stack field service company that deploys, fixes and maintains machines for the companies that build them. We're not a marketplace or software tool, we own uptime directly to provide better, more reliable service without burdening your engineers on support calls. $500B+ a year is spent to keep machines running in the US, we're coming for all of it.
Mantle is a Y Combinator company in the Fall 2026 batch. Its directory entry describes it as: The pit crew for machines and robots. The founders listed are Kieran White (Founder/CEO), Graham Smith (Founder/CTO) (Y Combinator directory entry, September 23, 2026).
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Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
Mantle is a full-stack field service company that deploys, fixes and maintains machines for the companies that build them. We're not a marketplace or software tool, we own uptime directly to provide better, more reliable service without burdening your engineers on support calls.
$500B+ a year is spent to keep machines running in the US, we're coming for all of it.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
Counted only where a thread links to this company's own site, announces it by name on that forum, or names it beside its own Y Combinator batch. A thread whose title merely carries the words is not counted — a name is not an identifier. More may exist than the one page of results read here. Hacker News is not us, and nothing above is our opinion of the company.
Kieran White
Founder/CEO
Co-Founder & CEO at Mantle, the pit crew for deployed machines and robots.
Previously founded Curo (YC F24), the world's largest private EV charging network. Curo scaled to 5,000 stations with Uber, Zoox and Google across 15 states before acquisition by Inspiration Mobility Group ($415M raised).
Before Curo I joined Tesla at 18 as the youngest employee.
Graham Smith
Founder/CTO
Co-Founder & CTO at Mantle, the pit crew for deployed machines and robots.
Previously founded Babylon, the world’s largest fleet of autonomous vertical farms. Babylon raised $22M and deployed 400 farms with Compass, LinkedIn and American Airlines.
Before Babylon I scaled an electronics repair business I started at 14.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 171 companies held here in Industrials › Manufacturing and Robotics.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
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Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
A Full Report on Mantle: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Mantle covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
6 cited sources found
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