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Find firms

Find accounting firms by service line, size, and software

Accounting firms are a seasonal audience. The list you build in November and the one you build in March are the same firms with entirely different attention.

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What separates these firms is the service mix. A compliance shop filing returns behaves nothing like a practice building advisory retainers, and the second one buys software the first will not open. Service lines, staff count, and the tools on the site decide fit.

None of that arrives from one place, so the table stacks them. People Data Labs gives the organization and its headcount. Open Web Ninja and Serper find the practices themselves, including the ones with no directory entry at all. Blitz API and LeadMagic turn a named partner into an address.

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.

  • Advisory, not just compliance

    accounting firms that advertise client advisory or cfo services with ten to fifty staff

    The service column comes from the firm's own wording, so an advisory practice that never uses the acronym still lands in the segment.

  • Firms on a ledger you integrate with

    practices that list a cloud bookkeeping platform on their services or partners page

    Serper returns the partner and integration pages a firm publishes, so the stack lands as a column rather than a question for the first call.

  • Partner and practice manager

    for each firm give me the managing partner and whoever runs the practice day to day

    Both people land on the same firm, which matters because one signs and the other decides the disruption is worth it.

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.

  • Segment on service mix

    A list split into compliance-led and advisory-led firms before the first send.

    1. Tables
    2. Knowledge Graph
    3. Tags
    1. 1An AI column reads the services pages and classifies the mix against your own definitions.
    2. 2Tag each firm with the result so the segment survives into every later run.
    oxygen columns add

  • Integration-led outreach

    Firms already running the platform you plug into hear a specific offer.

    1. Tables
    2. Records
    3. Sequences
    1. 1Detect the ledger and partner badges, then keep only the firms that name yours.
    2. 2Promote them onto records and enroll into a sequence that names the integration.
    oxygen sequences enroll

  • Time it around the season

    Sends land in the weeks a practice can actually take a meeting.

    1. Tables
    2. Workflows
    3. Sequences
    1. 1Hold the segment in a table and let a scheduled workflow release it in batches.
    2. 2Push the remainder to the next window instead of spending it in filing season.
    oxygen workflows apply

Who you can reach

Roles you can find at accounting and bookkeeping firms

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

RoleSeniorityReachable by
Managing partnerOwner/FounderWork emailMobileLinkedIn
Tax or audit partnerOwner/FounderWork emailLinkedIn
Practice managerManagerWork emailMobile
Director of client advisoryDirectorWork emailLinkedIn
Head of technologyDirectorWork emailLinkedIn
Office managerManagerWork email

Filters you can search on

  • Service lines advertised on the site
  • Staff and partner counts
  • Software and partner badges named on the firm's own pages
  • Client industries named in case studies
  • Office count and cities
  • Bookkeeping, tax, audit, or advisory mix
  • Certifications and memberships listed
  • Year founded

Firms with a marketing site resolve cleanly on service mix and people. Very small practices trading on referrals have a one-page site and a shared inbox, which caps what any source returns. Season matters too: a firm mid-filing-season answers nothing.

Data sources

What the data actually comes from

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

  • People Data Labs

    The firm as an organization: headcount, locations, and the partners and managers inside it.

  • Op

    Open Web Ninja

    Practice listings by city and category, with the address and the public phone number.

  • Serper

    Search results for firms that rank on their own site but never registered a listing.

  • Blitz API

    Opening lane for work email on partners and practice managers.

  • LeadMagic

    Reaches practice managers at small firms trading behind one shared office address.

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

  • Service lines are marketing copy, not a filing. A firm advertising advisory may still bill almost entirely for compliance, so read the classification column as a hint and confirm it.

FAQ

Questions people ask first

Can I find firms by the software they use?
Where they publish it, yes. Partner badges, integration pages, and client portals surface in search results and become columns. A firm running something quietly leaves nothing public, so an empty cell means unknown rather than absent.
How do I avoid filing season?
Hold the segment in a table and release it in batches on a schedule. Rows that were not sent stay queued rather than being spent into a month where nobody replies.
Is staff count reliable for small practices?
Reasonably, when it comes off the firm's own team page. Third-party counts for practices under ten people are frequently wrong in both directions, so treat them as a band.
Who do I write to first?
The partner signs, but the practice manager decides whether a change is worth the disruption. Resolve both, open with whoever owns the pain, and keep the other visible for the follow up.
Can I target firms by client type?
Often. Case studies and industry pages name the clients a firm serves, and that language reads into a column. For anything vertical it beats firm size as a fit signal.
What does it cost to build a list like this?
Listing search and enrichment draw credits, and every dollar is 1,000 credits. Run the preview on your exact filters first: it prices the run before a single row is charged.

Build your accounting and bookkeeping firms 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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