What Is Treeline? The AI-Powered MSP That Just Raised $25M
Most MSPs still work the way they did 20 years ago: a user submits a ticket, a technician picks it up, and the queue starts again.
Treeline is a San Francisco company that runs IT, security and compliance for growing businesses, using its own AI software to handle routine tickets and human technicians for the rest. It sells directly to those businesses as their outsourced IT team, so it competes with MSPs rather than selling to them. Andreessen Horowitz led its $25 million Series A on March 31, 2026.
What is Treeline?
Treeline calls itself "the modern IT operating system": a central software layer that standardizes workflows across IT, security and compliance, with human experts brought in for architecture, judgment and higher-risk decisions. Its homepage pitch to buyers is "your IT and security team without building one internally."
The company was founded in 2024, according to PitchBook, by Peter Doyle (CEO) and Hussain Kader (CTO). The two met as undergraduates at Stanford, according to a16z partner Joe Schmidt, who has known Doyle for a decade. Treeline emerged from stealth in March 2026, has its office in San Francisco, and serves approximately 200 clients, mostly companies with 30 to 500 users.
Headcount figures differ by source. PitchBook lists 70 employees as of 2026, Crunchbase puts it in the 11 to 50 band, and Built In lists 26, so treat any single number as an estimate.
If you searched for Treeline and landed on a software development agency, that is Treeline Interactive at treelineinteractive.com, a separate company that builds custom software for clients in transportation and healthcare. The AI-powered MSP is at treeline.ai.
How Treeline's AI works
A traditional MSP reacts. A password reset comes in and a technician handles it, a user can't reach a file share and someone troubleshoots it. Treeline puts software in front of that queue: according to its funding announcement, its AI tooling and agents "augment or directly resolve 98% of customer-submitted requests," and every resolved issue feeds back into workflows and documentation that learn from past fixes.
The platform connects to the tools its clients already run. Treeline's site lists Google Workspace, Slack, Microsoft Outlook, Okta, CrowdStrike, Meraki, Fleet, Microsoft Intune and Vanta, all shown as continuously monitored.
Treeline's performance claims
Treeline publishes these numbers on its website and in its March 2026 press release:
| Metric | Treeline's claim |
|---|---|
| AI coverage | 98% of customer-submitted requests augmented or directly resolved by AI agents |
| Response time | 80% faster response times |
| Error rate | 95% lower for tickets solved entirely within the platform |
| Employee onboarding | 10x faster, from 20 minutes to 2 minutes |
| Client onboarding | Under a week |
Read the 98% carefully. "Augment or directly resolve" covers tickets where a technician finished the job with AI help, so it is a coverage figure and not a resolution rate. Treeline does not publish what share of tickets close with no human touch, and the 80% figure is stated without a baseline. The difference matters if you are benchmarking your own queue, which is covered in ticket deflection vs resolution.
Treeline is clear that people stay in the loop. As Doyle told Channel Insider: "I'm not saying that we should replace technicians. We should empower them." Password resets and similar requests run automatically, while specialists handle the issues that need judgment.
What services does Treeline offer?
The service list covers the standard MSP bases, with software underneath each one.
24/7 help desk with AI routing
Requests are routed to the right expert straight away, with AI handling initial triage and common fixes, and resolutions use company context.
Endpoint security, EDR and MDR
Treeline offers Endpoint Detection and Response and Managed Detection and Response with AI-driven alert triage, through integrations such as CrowdStrike and Fleet. Its press release also lists vulnerability management, insider threat protection and completing security questionnaires. If you need a refresher on where those two services split, see MDR vs EDR for MSPs.
Identity, onboarding and device lifecycle
Identity and SaaS access management covers provisioning and deprovisioning as employees join or leave, and device lifecycle management covers enrollment and management, including through Microsoft Intune. This is where the 10x onboarding claim comes from.
Compliance
Treeline handles compliance readiness, audit preparation and advice on which frameworks a business needs, with SOC 2 and HIPAA monitoring shown on its dashboard. Slingshot Aerospace's CTO credits it with a "nuanced, strategic approach" to reaching CMMC Level 2. Treeline partners with Vanta and Drata rather than building everything itself. As Doyle put it: "It's messy, so we will partner with folks like Vanta and Drata for some areas that we just don't want to build."
Fractional CISO and advisory
Strategic security guidance and dedicated IT partnership for companies that need the expertise but not a full-time executive.
The company also plans to move into AI strategy consulting, implementation and training. That would give it services to sell on top of automated ones, aimed at customers working out their own AI roadmap, which is the same territory covered in the managed intelligence provider model.
Treeline funding and investors
PitchBook records two rounds. An early-stage round closed on August 30, 2024, while the company was in stealth, and the $25 million Series A closed on March 31, 2026, led by Andreessen Horowitz. PitchBook lists two investors in total. It was a16z's first direct investment in managed services, and Treeline says the money goes toward scaling the platform, product development and hiring.
Schmidt's case for the deal rests on market size. a16z puts MSP revenue at over $200 billion a year across roughly 40,000 independent businesses. Treeline's own release adds that global IT spend is projected to reach nearly $6 trillion in 2026.
How Treeline differs from traditional MSPs
According to a16z's investment announcement, most MSPs are small, lifestyle companies that react to tickets and provide labor augmentation. Treeline is betting that model can be rebuilt around software.
Software built in-house
Treeline built its platform from scratch with a team of seven Silicon Valley engineers. It is proprietary software that learns from every resolved ticket, rather than a third-party automation tool configured on top of a standard stack.
Acquisitions for expertise, growth through sales
Titan (backed by General Catalyst) and Shield Technology Partners (backed by Thrive and OpenAI) are buying MSPs at scale. Treeline has bought three MSPs for their expertise, and a16z describes it as integrating leading MSPs into its offering, but it says it is focused on organic growth and on competing directly with traditional providers. PitchBook lists Titan as a competitor.
Outcomes for the price
Treeline sells resolved tickets and secured endpoints rather than software licenses, which fits a16z's thesis that AI-enabled service companies can capture value that used to go to pure software vendors.
Quality first, then price
Doyle told Channelholic that Treeline offers "very competitive pricing" but does not lead with cost. It sells on response times and service quality, and its homepage promises "predictable cost." Pricing is meant to get better as customers grow, because Treeline doesn't need to add headcount at the same rate.
More than the help desk
Many AI plays in this space stop at ticket automation. Treeline also sells MDR, compliance and advisory work, so it is pitching a full IT department rather than a password-reset bot.
Who Treeline sells to
Treeline targets growing companies that need real IT infrastructure but aren't ready to build an internal team. For an MSP owner, these are your prospects and in some cases your current clients. Its website names four situations:
- Starting from scratch, where founders or ops leaders manage IT informally, there is SaaS sprawl without access control, and customers are already asking compliance questions.
- Graduating from a starter setup, where Slack-based IT support has turned into chaos and SOC 2 pressure is slowing revenue.
- Growing with an internal team, where ticket volume and the security surface are both rising and people are being hired just to manage tools.
- Replacing a legacy MSP, where response times are slow, the client juggles several providers, and costs keep rising.
The last one is aimed squarely at you. LA Foods' IT manager says Treeline took over after the company was "completely down for a month due to our previous MSP's negligence," and Luma's Head of People says Treeline helped build "infrastructure most companies our size don't have until they're 3x our size."
What Treeline means for MSP owners
VC money for AI-powered MSPs is growing. Treeline's $25 million round follows investments in Titan ($74M from General Catalyst) and Shield Technology Partners ($200M from Thrive, with technical help from OpenAI).
Schmidt's summary on Treeline's site: "Treeline is defining a new category – embedding software intelligence at the foundation of IT, security, and compliance, so companies can scale with greater efficiency and resilience." Doyle's version is more pointed: "Managed services still operate much the way they did 20 years ago, built around manual coordination and reactive ticketing."
For a traditional MSP, the threat is specific. A competitor that answers in minutes and adds clients without adding technicians at the same rate can undercut you on response time first and on price later. The clients most at risk are the 30 to 500 user companies with SOC 2 or CMMC pressure, because that is where Treeline is selling compliance alongside support.
The answer doesn't have to be becoming Treeline. Most of the speed gap sits in L1 work, where a ticket waits an hour for a tech and then takes 30 seconds to fix. Closing that gap inside your own stack is what agentic MSP models are about, and autonomous L1 resolution covers which tickets are safe to hand over first.
How Rallied approaches the same problem
Treeline replaces the MSP. Rallied works for the MSP, as an AI agent that closes tickets inside the PSA you already run, whether you're a ConnectWise, HaloPSA or Autotask shop. It runs the fix in Microsoft 365 and your RMM, including NinjaOne, pulls the client's documentation from IT Glue or Hudu during triage, and writes the notes and time entry back to the ticket, so you keep your clients, your stack and your techs.
The work it takes off the queue is the repetitive L1 work, such as password resets and new-user setups, so your techs spend their time on L2, L3 and project work. Pricing is one plan at $300 a month with 2,000 credits included. In Rallied's production data a charged ticket averages about 2.7 credits, so that covers roughly 700 tickets in a typical month, and a ticket the agent couldn't finish or wasn't allowed to act on is never charged. Details are on the pricing page.
To see how Rallied handles this inside your PSA, read about AI Ticket Triage and Routing for MSPs. For what an AI agent does on a ticket in practice, see what an AI technician is, and for the wider picture, read Best MSP AI Tools for Ticket Automation in 2026.
Frequently Asked Questions
What is Treeline?
Treeline is a San Francisco company that provides outsourced IT, security and compliance to growing businesses, using its own AI software for routine tickets and human technicians for complex work. It calls itself the modern IT operating system. Andreessen Horowitz led its $25 million Series A in March 2026.
How much does Treeline cost?
Treeline does not publish pricing. CEO Peter Doyle has said it offers very competitive pricing that improves as customers scale, but it competes on service quality rather than being the cheapest option. Its homepage promises predictable cost.
What is Treeline's relationship to Andreessen Horowitz?
Andreessen Horowitz led Treeline's $25 million Series A, announced March 31, 2026, and a16z partner Joe Schmidt led the deal. It was a16z's first direct investment in managed services. PitchBook also records an earlier early-stage round from August 2024, while Treeline was in stealth.
How does Treeline handle security and compliance?
Treeline offers EDR, MDR with AI-driven alert triage, vulnerability management and security questionnaire support. On compliance it handles readiness and audit preparation for frameworks such as SOC 2, HIPAA and CMMC Level 2. It partners with Vanta and Drata rather than building all compliance tooling in-house.
Who are Treeline's main competitors?
Treeline competes with traditional MSPs and with other AI-powered providers such as Titan (backed by General Catalyst) and Shield Technology Partners (backed by Thrive and OpenAI). PitchBook lists Titan as a competitor. Unlike those two, Treeline has made only a few acquisitions and focuses on organic growth.
What size companies does Treeline work with?
Treeline primarily serves companies with 30 to 500 users. It targets growing businesses that need real IT infrastructure but don't want to build an internal team, including companies replacing a legacy MSP.
Does Treeline replace internal IT staff?
Treeline says it aims to empower technicians rather than replace them. Its AI handles routine tasks while people handle issues that need judgment. It also works alongside existing internal IT teams to automate the operational layer.
Is Treeline the same company as Treeline Interactive?
No. Treeline at treeline.ai is the AI-powered IT and security provider backed by Andreessen Horowitz. Treeline Interactive at treelineinteractive.com is a separate software development agency that builds custom products for clients.