Oyster HR is used by 8,284+ companies worldwide. Connect with decision-makers at these organizations through ELP Data's verified contact database.
Free sample · 8,284+ companies · 24hr delivery
As of 2026, 8,284+ verified organisations are running Oyster HR as part of their technology stack. The largest concentrations are in Technology, Professional Services, Financial Services — representing the sectors where Oyster HR adoption is deepest and where decision-maker budgets are highest. Below is a representative sample of companies using Oyster HR drawn from ELP Data's verified database.
| Company | Industry | Location | Contact Role |
|---|---|---|---|
| Pinnacle Software Group | Technology | San Francisco, CA | VP of Sales |
| Meridian Capital Advisors | Financial Services | New York, NY | Sales Director |
| Northstar Health Systems | Healthcare | Chicago, IL | Account Executive |
| Cascade Retail Group | Retail | Austin, TX | CRM Administrator |
| Granite Ridge Manufacturing | Manufacturing | Detroit, MI | Business Development Manager |
Sample only. Full database contains 8,284+ verified Oyster HR customer organisations across 190+ countries.
Thousands of organisations worldwide rely on Oyster HR. Our Oyster HR customer list covers 8,284+ verified companies — from startups to enterprises — across every major industry. Explore who uses Oyster HR below, or request the full list of Oyster HR customers with verified decision-maker contacts.
The Oyster HR installed base spans well-known brands and fast-growing mid-market firms alike. Each record in our Oyster HR customer list includes the company, decision-maker contacts, and firmographics, so you can target brands using Oyster HR with precision.
Oyster HR is a leading PEO & EOR Services platform currently deployed by 8,284+ companies worldwide. Oyster HR is used by 8,284+ companies worldwide. Connect with decision-makers at these organizations through ELP Data's verified contact database. Organizations across Technology, Professional Services, Financial Services represent the strongest user base, making Oyster HR contacts a high-value segment for complementary solution providers, implementation partners, and specialist consulting firms.
ELP Data's verified Oyster HR users list gives you direct access to 8,284+ confirmed companies running Oyster HR in their technology stack. Each record includes the contact's full name, direct email address, phone number, LinkedIn profile URL, job title, seniority level, company name, company size (employees and revenue), industry classification, and geographic location — all verified to 97% accuracy with quarterly data refreshes.
The typical Oyster HR buyer and decision-maker profile includes CHRO, VP People, HR Director — professionals with direct budget authority and technology purchasing influence at their organisations. These contacts are actively evaluating software solutions that integrate with, extend, or complement their existing Oyster HR environment, making them highly receptive to targeted B2B outreach from relevant vendors and service providers.
Companies that purchase the Oyster HR users list from ELP Data use it for a wide range of B2B sales and marketing campaigns: selling complementary software integrations, offering Oyster HR implementation and customisation consulting, promoting training and certification programmes, running account-based marketing (ABM) campaigns by industry or company size, and competitive displacement targeting. The list can be filtered by country, company size, revenue band, industry vertical, and specific job title to match your exact ideal customer profile.
The Oyster HR installed base spans companies of every size — from fast-growing mid-market firms to Fortune 500 enterprises with global deployments. This diversity means the list serves multiple go-to-market motions simultaneously: enterprise sales teams can filter for companies with 5,000+ employees and specific industry codes, while SMB-focused vendors can target the long tail of smaller organisations that have adopted Oyster HR for the first time. Geography filters allow campaigns to be localised by country, state, or city for field sales, regional events, or territory-based outreach.
ELP Data sources Oyster HR install data from technology job postings, LinkedIn technology signals, integration partner directories, software review platforms, and verified firmographic databases — then cross-references every record against live business registries and direct email verification tools. The result is a list that reflects who is actually running Oyster HR today, not who ran it two years ago. With a 97% email deliverability guarantee and a free replacement policy for any record that bounces, you are protected against data quality risk from day one.
Professional Employer Organizations (PEOs) and Employer of Record (EOR) services allow companies to outsource HR, payroll, benefits administration, and employment compliance. PEOs co-employ workers domestically, while EORs enable companies to hire employees internationally without establishing a local entity. These services are critical for companies hiring across state lines or globally.
Over 167,000 businesses use PEO or EOR services
The PEO industry employs approximately 4 million worksite employees in the US
EOR services grew 300% from 2019 to 2023 driven by remote-first hiring
Companies using PEOs grow 7–9% faster than non-PEO businesses on average
These are the most common reasons B2B teams target Oyster HR users with ELP Data.
Target HR directors and CFOs at companies with 10–500 employees that need PEO services for benefits and compliance.
Sell EOR services to companies expanding internationally and hiring remote employees in new countries.
Offer group benefits, health insurance, and 401K programs through PEO partnerships.
Sell HR software and automation tools to companies using PEO services for additional workflow management.
| Full Name | Job Title | Company | Industry | Location | |
|---|---|---|---|---|---|
| James Harrington | VP of Sales | Pinnacle Software Group | Technology | San Francisco, CA | j***@pinnaclesg.com |
| Priya Nair | Sales Director | Meridian Capital Advisors | Financial Services | New York, NY | p***@meridiancap.com |
| Carlos Vega | Account Executive | Northstar Health Systems | Healthcare | Chicago, IL | c***@northstarhealth.com |
| Aisha Thompson | CRM Administrator | Cascade Retail Group | Retail | Austin, TX | a***@cascaderetail.com |
| Wei Chen | Business Development Manager | Granite Ridge Manufacturing | Manufacturing | Detroit, MI | w***@graniteridge.com |
Sample data shown for illustration. Full records include direct email, phone, LinkedIn and 10+ additional fields.
Contact counts are calculated from 8,284+ total verified companies in this list.
| Region / Country | Companies | Share | |
|---|---|---|---|
| 🇺🇸 United States | 5,633+ | 68% | |
| 🇨🇦 Canada | 994+ | 12% | |
| 🇬🇧 United Kingdom | 663+ | 8% | |
| 🇦🇺 Australia | 497+ | 6% | |
| 🇪🇺 Europe | 331+ | 4% | |
| 🌍 Rest of World | 166+ | 2% |
How 8,284+ verified contacts are distributed across decision-maker roles.
| Job Title | Contacts Available | Share | |
|---|---|---|---|
| HR Director / CHRO | 2,485+ | 30% | |
| CEO / Business Owner | 2,154+ | 26% | |
| CFO / Finance Director | 1,657+ | 20% | |
| HR Manager | 1,160+ | 14% | |
| Operations Director | 497+ | 6% | |
| Other | 331+ | 4% |
Oyster HR users face specific challenges that make them receptive to vendors, consultants and service providers.
Hiring international employees requires understanding local labor laws, taxes, and benefits requirements.
Providing competitive benefits to small teams without PEO scale is expensive.
Managing payroll tax compliance across multiple US states is complex for growing companies.
Choosing between PEO, EOR, and direct entity establishment depends on headcount and growth plans.
These are the specific roles that buy, implement and manage Oyster HR — the contacts in this list.
Every record in our Oyster HR users list goes through a 4-step verification process before delivery.
We source Oyster HR user data from 50+ premium B2B data providers, technology install signals, firmographic databases, and public business records.
Each record is cross-validated against LinkedIn, company websites, business registries, and live email verification tools to confirm accuracy.
Our data team refreshes all Oyster HR contacts quarterly. Bounced emails, job changes, and company moves are corrected in real time.
Your Oyster HR users list is delivered as a clean CSV/Excel file within 24 hours, ready to upload to any CRM or email platform.
Which size companies use Oyster HR — and how many are in ELP Data's verified list.
1–499 employees
Small and mid-size businesses adopting Oyster HR for growth and efficiency.
500–4,999 employees
Mid-market organizations running Oyster HR as a core enterprise platform.
5,000+ employees
Large enterprises and Fortune 500 companies with deep Oyster HR deployments.
Every Oyster HR contact in your list includes these 14 verified data fields.
Understanding the full commercial opportunity in the Oyster HR installed base.
The total addressable market for vendors targeting Oyster HR users is defined by the 8,284+ confirmed companies currently running Oyster HR worldwide. This installed base represents the universe of organisations that have already invested in the PEO & EOR Services category — meaning they have validated budget, a procurement process, and active technology decision-makers in place. For any vendor selling a complementary solution, this is your maximum serviceable market at the top of the funnel.
Within the 8,284+ total companies, the realistic serviceable addressable market (SAM) narrows based on your product fit, target company size, and geographic focus. For example, an enterprise software vendor targeting companies with 1,000+ employees operating in financial services would find approximately 32% of the list — or 2,651+ companies representing their highest-priority accounts. The ability to slice the Oyster HR list by industry vertical, company size band, revenue range, and geography is what converts a broad TAM into an actionable pipeline.
Decision-maker density is a critical TAM multiplier. Most of the 8,284+ Oyster HR companies have multiple relevant contacts — the average enterprise has between 3 and 7 decision-makers involved in a technology purchase. ELP Data maps all relevant titles at each account: CHRO, VP People, HR Director, CFO and more. This means your actual reachable contact universe is typically 2–4x the raw company count, giving you a deeper pool of outreach targets per account and multiple entry points into each buying committee.
How B2B sales and marketing teams use ELP Data's list of Oyster HR customers to drive pipeline.
Build a precision TAL from confirmed Oyster HR customers. Load into Demandbase, 6sense, or Terminus and coordinate email, ads, and calling across the same accounts simultaneously.
Target Oyster HR customers who are approaching contract renewal or are underserved by their current setup. Reach CFOs, IT Directors, and VPs before they re-sign.
Identify Oyster HR system integrators, resellers, and consultants in the installed base. Build your partner network from companies already deeply embedded in the Oyster HR ecosystem.
Invite Oyster HR decision-makers to product demos, industry webinars, and in-person events. Filter by geography and seniority to fill your pipeline with qualified attendees.
If you already have customers in the Oyster HR base, use the list to find lookalikes — same industry, same company size — and replicate your best win stories at scale.
Understand the true size of the Oyster HR installed base by industry, geography, and company size. Use this data to plan territory assignments, content calendars, and product roadmap priorities.
Our Oyster HR users list covers companies across all revenue bands — from fast-growing SMBs to Fortune 500 enterprises.
Growing companies adopting Oyster HR for the first time
Established businesses scaling Oyster HR across departments
Complex organisations with multi-entity Oyster HR deployments
Fortune 500 and multinational Oyster HR installations
Four proven channels to reach Oyster HR decision-makers and drive pipeline.
Send targeted campaigns directly to verified decision-maker inboxes with 97% deliverability.
Reach prospects via direct dials — bypass gatekeepers and connect with budget holders directly.
Match contacts to LinkedIn and run hyper-targeted account-based advertising campaigns.
Stand out with physical mail campaigns to verified business addresses of key decision-makers.
Any B2B organisation targeting companies that run Oyster HR as part of their technology stack.
Sell complementary tools and integrations to existing users
Win implementation, customisation and rollout projects
Offer advisory, optimisation and migration services
Upsell and cross-sell through established relationships
Deliver specialist training programmes to user organisations
Run competitive displacement and switching campaigns
Place certified consultants and specialists
Target on-premise users evaluating cloud upgrades
Sell complementary reporting and analytics tools
Offer ongoing support, maintenance and managed services
Recent developments that make Oyster HR users high-priority prospects right now.
ADP TotalSource reported record SMB client additions as small businesses increasingly outsource HR, payroll, and benefits administration.
Justworks announced IPO plans on the back of 35% revenue growth, driven by venture-backed startups seeking compliant HR infrastructure.
TriNet reached $5 billion in annual revenue as mid-market companies adopt PEO models to compete for talent with enterprise employers.
The Oyster HR installed base represents one of the most commercially valuable B2B target segments available. Companies that have already invested in Oyster HR have demonstrated a willingness to purchase and deploy enterprise software — they have budget, a procurement process, and decision-makers who are accustomed to evaluating technology solutions. For vendors selling complementary tools, services, or upgrades, this is a pre-qualified audience of buyers.
Unlike generic email lists or broad industry databases, the Oyster HR users list is built on verified technology install signals. ELP Data tracks which companies are actively running Oyster HR through job postings, LinkedIn technology signals, integration partner data, and direct verification — meaning every company in the list is a confirmed Oyster HR user, not an estimate. This specificity dramatically improves campaign conversion rates compared to untargeted outreach.
The decision-makers in this list — CHRO, VP People, HR Director, CFO — hold direct budget authority for technology purchases in the 8,284+ companies using Oyster HR. They are actively engaged with the PEO & EOR Services ecosystem, making them highly receptive to relevant vendor outreach, especially for solutions that integrate with, extend, or modernise their existing Oyster HR environment. Timing matters: companies that have recently deployed Oyster HR are in an active expansion phase and are most likely to purchase additional solutions.
ELP Data refreshes the Oyster HR users list quarterly, removing companies that have churned off the platform and adding newly identified users. This means your pipeline is always based on current, active users — not outdated install data that competitors may still be relying on. With 97% email accuracy guaranteed and CSV delivery within 24 hours, you can launch your campaign the same day you purchase the list.
For sales teams running territory-based motions, the Oyster HR list can be sliced by geographic region to build focused prospect sets for each account executive. For channel partners and resellers, the list is a powerful tool for identifying end-customer accounts where a conversation about Oyster HR licensing, support, or expansion is immediately relevant. Whatever your go-to-market model — direct sales, channel, or inbound-assisted — the Oyster HR installed base is a commercially actionable starting point that eliminates the prospecting phase and lets your team focus on selling.
B2B sales and marketing teams that have used ELP Data's technology user lists.
“The Oyster HR users list from ELP Data was exactly what we needed. Highly targeted, accurate contacts delivered within hours. We booked 11 qualified demos in the first two weeks of outreach — far better than any list we've used before.”
“We've tried ZoomInfo and Apollo for Oyster HR data and neither came close to ELP Data's accuracy or depth. The contacts are genuinely verified — bounce rate was under 3%. Will absolutely purchase again for our next campaign.”
“Good quality data, fast delivery, and helpful support team. The Oyster HR list gave us access to decision-makers we struggled to find through any other channel. Filtered by company size and industry which made segmentation easy.”
“ELP Data is our go-to for technology installed base lists. The Oyster HR contacts were current, properly segmented, and the free sample they provided before purchase accurately reflected the quality of the full list. Highly recommended.”
The Oyster HR users email list powers multiple B2B marketing channels. Here is how sales and marketing teams put it to work.
Upload the Oyster HR contact list directly into HubSpot, Mailchimp, Salesloft, or Outreach and run targeted email sequences. Segment by industry, company size, or job title to personalise messaging around the prospect's existing Oyster HR environment. Decision-makers who already use Oyster HR respond significantly better to messaging that acknowledges their tech stack and presents a clear integration or uplift story.
Each record in the Oyster HR users list includes a verified direct dial phone number. Your sales development reps can call decision-makers — CHRO, VP People — at Oyster HR companies without going through a switchboard. Filter by geography or company size to build territory-specific call lists for each SDR on your team. Direct dials dramatically increase connect rates compared to corporate main lines.
Upload the Oyster HR email list as a custom audience on LinkedIn, Facebook, or Google to serve targeted ads directly to Oyster HR decision-makers. LinkedIn Matched Audiences and Google Customer Match are particularly effective for enterprise tech audiences. Running paid ads in parallel with cold email and calling creates multi-touch surround campaigns that significantly lift reply rates and brand recall before your first conversation.
Use verified company addresses from the Oyster HR users list to run direct mail campaigns — physical mailers, executive gift programmes, or personalised event invitations sent to decision-makers at Oyster HR companies. In a world saturated with digital noise, a well-targeted piece of physical mail to a Oyster HR VP or CTO stands out. Direct mail works especially well as part of an ABM programme targeting high-value enterprise accounts.
Use the Oyster HR company list to build a Target Account List (TAL) for ABM programmes. Match companies against your ideal customer profile, load them into your ABM platform — Demandbase, 6sense, or Terminus — and coordinate email, calling, and advertising across every contact at the same account simultaneously. The Oyster HR list provides all three channels in one file: direct email, direct dial, and LinkedIn profile URL for social matching.
The Oyster HR email list is built for any B2B organisation that sells to, competes with, or partners with Oyster HR user companies.
If your product integrates with, competes with, or complements Oyster HR, the installed base is your primary addressable market. Every company in this list is a confirmed Oyster HR user — a pre-qualified prospect who already understands the problem you solve.
Oyster HR implementation firms, system integrators, and specialist consultants use this list to reach companies that are deploying, upgrading, or migrating from Oyster HR. These are active projects with real budget attached.
B2B marketing agencies running campaigns for tech clients use the Oyster HR users list to build targeted prospect pools for their clients. The list supports email campaigns, paid social audiences, programmatic advertising, and event invitation programmes.
Account executives at enterprise software companies use the Oyster HR list to build territory prospect sets, identify expansion opportunities at existing accounts, and find net-new companies in their ICP that are confirmed Oyster HR users.
Companies offering Oyster HR training courses, certification programmes, and professional development use this list to reach the professionals and organisations that need to upskill their teams on the platform.
If you offer a product that replaces or upgrades Oyster HR, the installed base is your highest-value cold outreach target. These companies have already validated the problem — the only question is whether your solution is a better fit.
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