In March, Sequoia Capital partner Julien Bek published a thesis called "Services: The New Software." The argument: the next trillion-dollar company will be a software company masquerading as a services firm.
Not a company that sells tools to accountants. A company that closes the books. Not a company that sells tools to lawyers. A company that reviews the contracts.
The economic logic is simple. For every dollar companies spend on software, they spend six dollars on services. The venture money has been chasing the software dollar. Bek's argument is that the real prize is the six dollars.
What Sequoia is actually saying
Bek divides AI companies into two categories: copilots and autopilots.
Copilots sell tools to professionals. Harvey helps lawyers draft contracts faster. Rogo helps investment bankers run analyses. The professional stays in the loop. The tool makes them more productive.
Autopilots sell the work directly to the end customer. Crosby drafts NDAs for companies without involving a law firm. WithCoverage sells insurance to CFOs without a broker. Rillet closes books for companies — no accounting firm in the loop.
The copilot sells the tool. The autopilot sells the outcome.
The competitive dynamics are asymmetric. If you sell a tool, every improvement in the underlying AI model is a competitive threat. Someone builds a better copilot, yours is obsolete. But if you sell the work, every improvement in the model makes your service faster and cheaper to deliver. The autopilot gets stronger with every model upgrade. The copilot gets more replaceable.
Sequoia is telling founders to build autopilots.
The copilot sells the tool. The autopilot sells the outcome. Sequoia is telling founders to skip your firm and sell the work directly to your clients.
The map of your market
Bek published an opportunity map. It reads like a target list of professional services verticals with dollar signs attached.
Accounting and audit: $50 to $80 billion in outsourced work in the US alone. 340,000 accountants lost in five years. 75% of CPAs approaching retirement. The structural shortage is accelerating AI acceptance, and companies like Rillet are building AI-native ERPs that close books without an accounting firm involved.
Legal transactional work: $20 to $25 billion. Contract drafting, NDAs, regulatory filings. Verifiable, standardized output that makes buyers comfortable skipping the firm entirely. Crosby and Lawhive are already funded and operating.
Recruitment and staffing: $200 billion-plus. Top-of-funnel work — sourcing, screening, matching — is what Bek calls "pure intelligence work." Pattern-driven. High-volume. Exactly what autopilots target first. Mercor and Juicebox are funded to place candidates without traditional staffing firms.
Insurance brokerage: $140 to $200 billion. Standardized commercial lines. Fragmented distribution. No incumbent controls the market. WithCoverage and Harper are already selling directly to CFOs.
Management consulting: $300 to $400 billion. Mostly judgment work, which is harder for autopilots. Bek's note on consulting is the one that should make you pause: "Best candidates TBD." The startups haven't cracked it yet. But Sequoia is telling them the prize is $400 billion.
Every one of those verticals is a firm type I talk to regularly.
The playbook they are following
Bek's strategy for these startups is specific. Start where outsourcing already exists. If a company already sends work to an outside firm, three things are true: they've accepted external delivery, a budget line exists that can be substituted, and the buyer is already purchasing an outcome rather than a tool.
The startups don't need to convince companies to try something new. They need to offer the same outcome at a lower price with faster delivery. The fact that AI gets cheaper every quarter means their margins improve while yours compress.
Then the progression: start with the routine, pattern-driven work. Accumulate proprietary data about what good outcomes look like. Use that data to move into the judgment-heavy work that currently requires experienced professionals.
Today's routine work is the beachhead. Tomorrow's advisory work is the destination.
What this means if you run a firm
These are funded companies with named founders and identified markets. WithCoverage raised capital to sell insurance directly to CFOs. Crosby raised capital to handle legal work without law firms. Mercor and Juicebox are placing candidates without staffing firms. Rillet is closing books without accounting firms.
None of them have your client relationships or your domain knowledge. They don't have the trust you've built over years. But they don't need those things yet. They are starting with the commodity work: the standardized, high-volume tasks that make up a large share of what most firms bill for. By the time they move into the judgment work, they will have accumulated proprietary data about what good outcomes look like. Data that incumbents don't have, because incumbents never had to codify it.
Your advantages are real, and they have a shelf life.
The firms that will define their verticals for the next decade are the ones building new offerings around domain expertise and client trust right now — before the autopilots get there. The firms that keep billing hourly for work AI can deliver at a fraction of the cost are the market these startups are built to capture.
The question
Sequoia told its portfolio companies that professional services revenue is the next trillion-dollar opportunity. That is not a blog post by a commentator. It is a funding thesis by the firm that backed Apple, Google, Stripe, and Nvidia.
The question is not whether this is happening. Sequoia published the map. The question is what you're building.