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Find IT partners

Find IT services firms and MSPs by stack and headcount

An MSP is defined by the vendors it resells and the engineers it can staff. Both leave a public trail: the certifications on the site, and the roles in the job board.

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Two managed service providers of the same size sell completely different books. One runs a Microsoft practice for dentists; the other does network and security work for manufacturers. Headcount says almost nothing here. The vendor practice and the hiring pattern say nearly everything.

TheirStack supplies postings and the platforms named inside them. BuiltWith reads what the firm runs on its own domain. People Data Labs carries size and location, and the email chain opens with Blitz API and falls through to LeadMagic on the residual.

It all lands on rows in one hosted table, each cell keeping its provider, cost, and error. When you disagree with a qualification later, you can see which column produced it instead of rebuilding the list.

Example searches

Ask for it the way you'd say it

Every search below runs on the same hosted Tables, with the cost previewed before anything is spent.

  • Practice, not category

    managed service providers that mention azure and endpoint security, fifteen to two hundred people

    Each qualifier is its own column, so a firm matching only one of the two stays visible instead of being silently excluded.

  • Hiring as the tell

    show msps that posted a network or cloud engineer role in the last quarter

    Postings land as dated rows in the table beside the firm, so a month later the evidence that put it on the list is still readable.

  • Owner-operated shops

    independent it services firms under thirty staff, exclude anything owned by a national rollup

    Rollup membership becomes a column rather than a guess from the brand name, so excluded rows stay readable.

Plays

Three motions you can run this week

Each one is a chain of Oxygen primitives — the same hosted objects your workspace already has, composed.

  • Vendor-practice qualified list

    Only firms with a live practice in the platform you integrate with reach the sequence.

    1. Tables
    2. Signals
    3. Sequences
    1. 1Source firms by region and size, then add columns for practice and posting evidence.
    2. 2Keep rows where two signals agree, resolve the delivery owner, and enroll those.
    oxygen columns add

  • Hiring spike as the opening line

    Outreach lands the week a firm staffs up around the platform you support.

    1. Signals
    2. Tables
    3. Sequences
    1. 1Bind a posting search as a feed so new engineering roles arrive as rows on a cadence.
    2. 2Enroll only firms whose postings name your platform, and suppress the rest.
    oxygen signals search run

  • Channel map for a partner program

    A ranked view of which firms could resell you, by practice depth and bench size.

    1. Tables
    2. Dashboards
    1. 1Score practice depth, headcount, and posting volume in a formula column.
    2. 2Read the banding on a dashboard instead of exporting the table to a spreadsheet.
    oxygen tables query

Who you can reach

Roles you can find at IT services firms and managed service providers

Reachability is per channel: a role marked for mobile is one the phone waterfall usually resolves, not a guarantee for every record.

RoleSeniorityReachable by
Founder or managing partnerOwner/FounderWork emailLinkedInMobile
Chief technology officerC-levelWork emailLinkedIn
VP of service deliveryVPWork emailLinkedIn
Director of managed servicesDirectorWork emailLinkedIn
Virtual CIODirectorWork emailLinkedIn
Head of partnershipsDirectorWork emailLinkedInMobile

Filters you can search on

  • Vendor practice named on the site
  • Technologies named in recent postings
  • Engineering roles posted this quarter
  • Headcount band and staff growth
  • Client industries served
  • Country, state, or metro area
  • Independent or owned by a rollup

Firms that publish a partner or certification page resolve cleanly, and so does any firm posting engineering roles. A quiet twelve-person shop with a brochure site and no job board still appears with its listing and a contact, but the practice columns come back empty. Read an empty cell as unknown, never as evidence the practice is missing.

Data sources

What the data actually comes from

Every value lands with its provider and cost recorded on the cell.

  • TheirStack

    Job postings and the platforms named inside them, the earliest public sign of a real practice.

  • BuiltWith

    Technology on the firm's own domain, which helps separate a reseller from an operator.

  • People Data Labs

    Firmographics for size, location, and growth, plus the people records behind each firm.

  • Blitz API

    Opens the work-email waterfall so most rows resolve before a metered lane is reached.

  • LeadMagic

    Runs on what is left and returns email or mobile, charged on a hit rather than an attempt.

Run these on Oxygen's managed credits, or connect your own provider keys and pay the vendor directly — the same columns, the same runs, the same provenance either way. See every integration.

Limits

Where this stops

  • Partner badges age badly. A certification page can sit untouched for years, so pair it with posting evidence before you treat a practice as active.
  • Rollup ownership is not always public. Acquired firms often keep their brand and site, and the record will show the independent name.

FAQ

Questions people ask first

Why use job postings to qualify an MSP?
Because a posting is a budget decision made this quarter, while a partner badge might date from years ago. A firm hiring two cloud engineers has committed money to that practice.
Can I separate resellers from firms that run the platform?
Partly. Detection on their own domain shows what they operate internally; postings show what they staff for. Where both agree you have an operator. Where only the marketing page claims it, rank the row lower.
How do I handle firms with no job board?
They still make the list. The posting column returns nothing and you rank on site evidence and headcount instead. Keep them in their own view so an empty cell is never read as a failed check.
Who owns the vendor relationship at a firm this size?
Usually the CTO, a service delivery lead, or a partnerships owner, depending on headcount. The table records whichever title resolved, so you write to the role you found rather than one you assumed.
Does any of this need my own LinkedIn account?
No. Public company and profile reads run on a managed path with no connected account and no seat. You connect an account only to send from it or read your own inbox, which is a paid step.
What happens when a firm renames after an acquisition?
Dedupe on the normalized domain rather than the company name and the two rows collapse into one. The old name stays on the record as history, so a reply mentioning it still matches.

Build your it services firms and managed service providers list

Start with a search, preview the cost before anything is spent, and keep the rows, sources, and runs in a workspace you own.

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