Spacer Robotics
Founded 2025 · 12 employees on LinkedIn · 2 known investors
Spacer Robotics builds autonomous AI robots for construction, starting with GRID, a mobile robot that automates rebar tying on commercial job sites using computer vision and self-navigation. Its roadmap extends to semi-humanoid robots for high-complexity site tasks and future lunar construction robots.
Also known as Arn Autonomy
Founders & leadership
Spacer Robotics was founded in 2025 by Lesya Hendrix.
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Investors · 2
Company profile
researched Aug 2026Spacer Robotics develops autonomous robots for construction machinery and jobsite tasks. Its first product, GRID, is a mobile rebar-tying robot that operates directly on rebar grids under jobsite conditions, using steel wire to tie rebar on large commercial construction sites. The company positions GRID as automating a repetitive task in order to produce consistent output, reduce labor strain, improve schedule reliability and lower project cost. GRID is described as self-driving with long battery life and high-retention tying technology, and features include precision tying, autonomous navigation over uneven grids, a rugged design for debris, dust and rough terrain, weather-resistant operation in rain, snow and extreme heat, and data logging with tie counts, runtime and QA reports. The stated workflow is unloading the unit (which fits in an SUV trunk), placing it on the rebar grid, detecting obstacles and tying via computer vision, and logging completed work before concrete pouring.
The company frames its product plan around three generations of robots. Generation 1 covers task-focused robots for highly repetitive foundation-construction work, with a further lineup indicated for concrete finishing, concrete polishing, paint spraying and demolition. Generation 2, named Andromeda, is planned as a semi-humanoid platform intended for higher-complexity and higher-risk jobsite operations that works alongside the Gen 1 fleet and is trained on field experience from it. Generation 3 targets lunar infrastructure construction, including robots able to withstand space and lunar conditions and to support habitats, infrastructure, and facilities such as data centers and quantum computing sites beyond Earth.
As of the website reviewed, the company states it is rebranding to Arn Autonomy while retaining the same team and mission.
Founding story
The company was founded by Lesya Hendrix, who serves as Founder and CEO and is described as a robotics, EVs and automotive engineering expert with prior experience at Tesla, Scania and Nuro, and as "#1 Woman in Hardware".
Business model
The company develops and deploys its own robotic hardware and autonomy software for construction sites, with website calls to action for demos, pilot partnerships and information requests.
Traction
The website describes GRID as now deploying and cites performance figures of 5,000 ties per 8-hour shift, 14+ hours of runtime with swappable batteries, a 90 lb weight said to be optimized for OSHA requirements, and 3 ft x 2 ft dimensions.
Latest developments
The company announced it is rebranding from Spacer Robotics to Arn Autonomy, keeping the same team and mission, and lists a roadmap of deploying first Gen 1 robots with pilot partners in 2026, Gen 2 semi-humanoid R&D and industry collaborations in 2028, Gen 3 enterprise adoption in 2031, and Gen 3 robots performing first lunar construction tasks in 2033.
▸Full profile — market position, technology, go-to-market
Market position
Positions itself as a provider of next-generation AI robots bringing autonomy to construction machinery, with an intelligence roadmap it describes as scaling from Earth to space.
Technology
GRID combines computer vision for obstacle detection and tying with autonomous navigation across uneven rebar grids, swappable battery packs for 14+ hours of runtime, a ruggedized weather-resistant enclosure, and onboard data logging of tie counts, runtime and QA reports. The stated roadmap extends the autonomy stack from repetitive task execution to general world navigation and lunar adaptation.
Go-to-market
Direct engagement via demo bookings, information and pitch-deck requests, and partnership inquiries on the company website, with initial Gen 1 deployments planned alongside pilot partners and later industry collaborations for Gen 2.
Large commercial construction projects and foundation construction work, with pilot partners cited for initial Gen 1 deployments.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 2
launches, deals, and filingsThe company's website states that Spacer Robotics is becoming Arn Autonomy, with the same team and mission.
Spacer Robotics states it is "Now Deploying" GRID, its first-generation mobile robot that ties rebar on job sites using computer vision and autonomous navigation.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 1
primary sources listed
- Spacer Roboticsspacerrobotics.ai · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Spacer Robotics do?
- Spacer Robotics, rebranding as Arn Autonomy, builds autonomous construction robots starting with GRID, a rebar-tying robot.
- Who founded Spacer Robotics?
- Spacer Robotics was founded by Lesya Hendrix in 2025.
- Who are Spacer Robotics's investors?
- Spacer Robotics's investors include LongHash Ventures, SMOK Ventures.