THE COMPANIES AND THE CAPABILITIES
Start with the organisations that turned ambition into products, services and infrastructure. This directory follows Musk’s involvement from early internet ventures to electric vehicles, energy, spaceflight and artificial intelligence, explaining what each does and where he contributed.
Follow the full entrepreneurial Timeline →This directory explains each venture, Musk’s role and where to find its official website or historical record. Company entries and programmes within larger companies are labelled separately. For dates, personal investment, setbacks and milestones, explore the Timeline.
Years mark the beginning of the involvement or programme recorded here, rather than a claim that every company was founded in that year. Names and official brand marks checked on 6 October 2026.
An early internet business that supplied maps, business directories and publishing tools to newspapers. Its sale to Compaq helped fund Musk’s next ventures.
Musk’s role
Co-founder, programmer and early business builder.
Recorded from 1995 · Internet and payments
Historical name; no current standalone logo.
The online financial-services company Musk co-founded before its merger with Confinity. This X.com belongs to the PayPal story; it is distinct from the later social platform X.
Musk’s role
Co-founder and personal investor; chief executive during part of the early period.
Recorded from 1999 · Internet and payments
Historical name; no current standalone logo.
The payments business that emerged from X.com and Confinity. Its 2002 acquisition by eBay released capital that Musk subsequently committed to SpaceX, Tesla and other ventures.
Musk’s role
Co-founder through predecessor X.com; former executive and shareholder. No current management role is implied.
Recorded from 2000 · Internet and payments
Official brand mark. Brand source ↗
A launch and space-technology company that developed Falcon rockets, Dragon spacecraft, reusable boosters and Starship. Its work has expanded commercial access to orbit and crew transport.
Musk’s role
Founder, personal investor and engineering leader.
Recorded from 2002 · Space and connectivity
Official brand mark. Brand source ↗
An electric-vehicle, manufacturing and energy company that helped bring battery-electric cars into mass production. Its work includes charging infrastructure, batteries, storage and robotics.
Musk’s role
Early lead investor, co-founder and chief executive; joined in 2004 after the company’s 2003 incorporation.
Recorded from 2004 · Transport and energy
Courtesy of Tesla, Inc. Brand source ↗
A solar-installation and financing company acquired by Tesla in 2016. Its work forms part of the history of Tesla’s solar and energy activities.
Musk’s role
Chairman and financial backer; founded by Lyndon and Peter Rive.
Recorded from 2006 · Transport and energy
Historical name; no current standalone logo.
SpaceX’s satellite broadband network connects homes, enterprises and remote locations. Direct to Cell extends the communications programme to compatible mobile-network services.
Musk’s role
Developed within SpaceX under Musk’s leadership; a SpaceX business rather than an unrelated company.
Recorded from 2015 · Space and connectivity
Official brand mark. Brand source ↗
Tesla’s energy business combines Powerwall home storage, Megapack grid storage and solar products. Batteries can shift electricity between times of production and demand and support the use of renewable generation.
Musk’s role
Company leader and investor; delivered by Tesla’s energy and engineering teams.
Recorded from 2015 · Transport and energy
Courtesy of Tesla, Inc. Brand source ↗
An AI research and deployment organisation whose products include ChatGPT and an API platform. Musk helped establish its early research effort before leaving its board.
Musk’s role
Co-founder and early supporter; left the board in 2018 and has no current management role.
Recorded from 2015 · Artificial intelligence
OpenAI wordmark belongs to OpenAI. Brand source ↗
A brain-computer-interface company developing implants that allow people to control digital devices through neural signals. Its first human applications focus on people with severe physical impairments.
Musk’s role
Co-founder and financial backer.
Recorded from 2016 · Brain interfaces
Official brand mark. Brand source ↗
A tunnelling business developing boring machinery and underground transport systems. Its Loop projects test a different approach to moving passengers and building tunnel infrastructure.
Musk’s role
Founder and financial backer.
Recorded from 2016 · Infrastructure
Official brand mark. Brand source ↗
The communications platform acquired as Twitter in 2022 and subsequently renamed X. Its financial and technical record includes the acquisition, changes to the platform and its relationship with xAI.
Musk’s role
Acquirer, investor and business leader; Twitter was founded by others.
Recorded from 2022 · Internet and payments
Official brand mark. Brand source ↗
The AI business founded as xAI, responsible for Grok and the Colossus computing infrastructure. SpaceX announced its acquisition in February 2026; the current official site uses the SpaceXAI name.
Musk’s role
Founder and financial backer; subsequently brought into SpaceX.
Recorded from 2023 · Artificial intelligence
Current official SpaceXAI brand icon. Brand source ↗
Tesla’s humanoid-robot programme aims to build machines capable of useful physical work. Development demonstrations and future commercial ambitions are recorded separately from delivered production.
Musk’s role
A Tesla programme promoted and overseen by Musk, developed by its robotics teams.
Recorded from 2021 · Artificial intelligence
Courtesy of Tesla, Inc. Brand source ↗
An open transport proposal describing passenger capsules in low-pressure tubes. Musk helped popularise the concept; subsequent ventures pursued their own versions. It is not presented here as a Musk-owned operating railway.
Musk’s role
Proposer and supporter of early research and competitions.
Recorded from 2013 · Infrastructure
Name shown; no separate verified logo.
SpaceX’s large, fully reusable launch-system programme aims to expand payload capacity and enable new space missions. Its test and development milestones are part of the SpaceX story.
Musk’s role
A SpaceX programme under Musk’s engineering and company leadership.
Recorded from 2016 · Space and connectivity
Official brand mark. Brand source ↗
Battery packs, cell development, manufacturing and supply partnerships underpin Tesla’s vehicles and storage products. This record follows the technology and industrial capacity behind both businesses.
Musk’s role
Company leadership, investment and engineering priorities; delivered with Tesla teams and suppliers.
Recorded from 2004 · Transport and energy
Courtesy of Tesla, Inc. Brand source ↗
Tesla’s battery-electric heavy-truck programme applies electric drivetrains and high-power charging to freight transport. Its history records the path from announcement to customer vehicles and manufacturing.
Musk’s role
A Tesla product programme under Musk’s company leadership.
Recorded from 2017 · Transport and energy
Courtesy of Tesla, Inc. Brand source ↗
Tesla’s electric pickup programme introduced a different vehicle architecture, exterior design and manufacturing challenge. Announcements, customer deliveries and commercial performance appear in the evidence record.
Musk’s role
A Tesla product programme under Musk’s company leadership.
Recorded from 2019 · Transport and energy
Courtesy of Tesla, Inc. Brand source ↗
Tesla’s Texas operation produces battery-grade lithium material upstream of cell manufacturing. Its annual filing records operations beginning in January 2026, following the 2023 construction announcement.
Musk’s role
A Tesla manufacturing programme under Musk’s leadership.
Recorded from 2023 · Transport and energy
Courtesy of Tesla, Inc. Brand source ↗
AI training infrastructure first developed by xAI in Memphis, combining a large GPU cluster with networking, cooling and power infrastructure. It is a programme within the AI business, not a separate company.
Musk’s role
Founder of xAI; helped assemble capital, suppliers and teams.
Recorded from 2024 · Artificial intelligence
Parent company SpaceXAI brand icon. Brand source ↗
Video generation and editing within the Grok product family. Its API release gives developers an interface for incorporating creative capabilities into their own workflows. The year marks the API milestone.
Musk’s role
Product programme within the AI company Musk founded.
Recorded from 2026 · Artificial intelligence
Parent company SpaceXAI brand icon. Brand source ↗
No businesses match these filters.
Logos belong to their respective owners and identify the businesses discussed. Programmes without a separate brand use their parent company’s mark. Historical ventures without a current standalone identity are shown by name. This independent directory implies no affiliation or endorsement.