The very rich have their own folkways and methods of doing business, operating at an Olympian remove from you and me. Many ultra high net worth individuals — also known by the acronym UNHWI — maintain what are called family offices, private businesses that track their money, manage investments, employ the billionaire’s personal staff, and perhaps disperse money to a connected foundation or nonprofit. It’s the nerve center of a billionaire’s empire, with potentially broad reach — the staff employed by a family office might include assistants, investment specialists, political advisors, chefs, chauffeurs, cleaners, and security guards.

Usually we don’t hear much about how family offices operate, but a handful are well known. Elon Musk’s family office, Excession LLC, is managed by Jared Birchall, Musk’s closest aide who is frequently reported on in connection with his boss’s many companies and political activities. Bill Gates’ family office is called Cascade Investment LLC, and with $70 billion in assets under management, it’s known for generating huge returns for its principal beneficiary, who now is the leading owner of US farmland.

A company called Clue LLC seems to be serving as the family office for web browser pioneer, billionaire venture capitalist, and prominent Donald Trump supporter Marc Andreessen. Clue LLC definitely belongs to Andreessen — corporate registration documents in California, Louisiana, and Delaware either mention him or firms and corporate agents he’s used before. It also employs people who have worked for Andreessen’s foundation. Clue LLC’s existence hasn’t been publicly reported.

Clue LLC seems a little different than a conventional family office. To start, Clue LLC has a public-facing website at www.cluellc.com. The site is a barebones placeholder, featuring stock photos of beautiful oceans, mountains, and minimalist architecture. “Welcome to Clue LLC,” reads a large headline, below which is a promise that the company “is committed to the highest level of services.”

There’s also a phone number, an office address, and a 2021 copyright notice. An About page, again featuring stock nature photography, offers a vague description of a firm offering discreet asset management services.

The address on cluellc.com is associated with the Palo Alto office of Frank, Rimerman, an accounting firm used by Andreessen. According to a data broker service, the Clue phone number is registered to Laura Arrillaga, Marc Andreessen’s wife. The daughter of a billionaire property developer, Arillaga-Andreessen heads the Laura Arrillaga-Andreessen Foundation. In an online biography, she describes Marc Andreessen as her “trophy husband.”

I called the phone number and left a message after it went straight to voicemail.

On LinkedIn, about a dozen people list themselves as present or past employees of Clue LLC. They include personal assistants, chefs, a gallerist (the Andreessens have a large art collection), a chief of staff, and an estate manager. They seem to have responsibilities extending across Andreessen’s properties in the Bay Area, Los Angeles, and New York City. I reached out to some of them, but they either did not respond or declined to speak on the record.

Clue LLC’s life seemed to begin on February 8, 2005, when it was registered as ML Services, LLC in Delaware by a CPA with a Silicon Valley address. Two months later, ML Services LLC was registered in California as well. On October 18, 2012, ML Services LLC re-registered itself in California as Clue, LLC. The authorized signature came from Anne F. Macdonald, a partner at Frank, Rimerman. Five days later, someone registered cluellc.com, though according to archived versions on the Wayback Machine, the site seems to have been blank until 2021.

In 2015, Clue LLC was delinquent in maintaining its filings with the California Secretary of State. In 2016, its registration was forfeited. The following year, Clue LLC successfully applied for its registration to be revived and was restored as a going concern.

In 2020, ML Services LLC in Delaware changed its name to Meadow Loan Servicing LLC.

As of April 2025, Clue LLC appears to be current with its California business filings. Documents filed with the Secretary of State in 2023 and 2025 describe the type of business as “employees and payroll.” The designated section for listing a chief executive officer is left blank.

On January 27, 2025, a week after the presidential inauguration, Marc Andreessen registered Clue LLC in Louisiana. Rather than a lawyer or CPA, his own name is listed as the registered agent and officer. The latter has the same address for the Frank, Rimerman office in Palo Alto. But in the registered agent section, there’s an address for a lake house in Baton Rouge. According to public records, a Louisiana baseball coach and his family may live in that house. I reached out to him on Facebook and X to ask why a billionaire’s family office seems to be registered to the nice-but-not-billionaire-nice home of a private hitting coach and baseball scout in Louisiana. I did not receive a reply before publication.

So that’s three corporate registrations across three states over 20 years, with shifting names, all connected to Marc Andreessen, with one of them lapsing for a couple years, plus a strange public-facing website promising “confidentiality” in its operations. What does it all add up to? These may simply be the inscrutable personal financial machinations of an influential Trump donor who insists he’s merely another member of the professional managerial class. Perhaps this attempt at reading the tea leaves of Andreessen’s corporate registrations is only a pinhole glimpse into how a billionaire manages his affairs. Andreessen, after all, sits on numerous corporate boards and, through his Andreessen Horowitz firm, has a large startup investment portfolio that includes Substack, the platform I’m using to publish this article. Clue LLC may be yet another company in that vast portfolio, but it seems like an important one, closely maintained and never publicly discussed.

If you happen to know more, please get in touch. I am glad to speak on background, and I protect the confidentiality of sources.