Email list of companies using Polars DataFrames
Reach data scientists and engineers using Polars and Polars Cloud for fast DataFrame processing in Python and Rust.
Free Polars DataFrames count + 10 sample records
5,004+ companies · 22,593+ contacts available
- ✓Exact count for your titles, regions and company size
- ✓10 verified sample records to check quality
- ✓Price quote within 1 business day
Trusted by B2B and enterprise revenue teams
How many companies use Polars DataFrames?
Data InfoMetrix tracks 5,004+ companies running Polars DataFrames as of October 2026, with 22,593+ verified contacts at those accounts. The largest groups are Quantitative Finance, Research and SaaS. Buying decisions usually sit with the Chief Data Officer, VP of Data & Analytics and CTO. Counts are estimates built from technology footprint scans, job-post signals and partner directories, checked by our research team. How we count
Organizations detected running Polars DataFrames.
Direct emails and phone dials for decision-makers.
Full buying committee mapped.
SMTP-verified, with 1:1 replacement of any email that hard bounces within 30 days.
| Technology category | Data Analytics & Modern Data Stack |
|---|---|
| Tracked organizations | 5,004+ verified accounts worldwide |
| Decision-maker contacts | 22,593+ records with emails, mobile and direct dials |
| Key roles | Data Scientist, ML Engineer, Data Engineering Lead, platform administrators, IT directors, procurement |
| Geography | 180+ countries · country-by-country counts on request |
| Verification | DNS and script telemetry, 5-stage SMTP handshake, manual research |
| Refresh cadence | Continuous, 30–45 day maximum record age at delivery |
| Compliance | GDPR, CAN-SPAM, CCPA and CASL |
| Delivery | 24–48 hours as CSV, XLSX or CRM API |
Researched by the Data InfoMetrix research team. Counts updated October 2026.
How we count and verify dataSee 10 records first
Matched to your ICP filters, free.
Size your Polars DataFrames audience
Pick a region, company size and buying role to estimate how many accounts and contacts you can reach.
Estimates from our current Polars DataFrames dataset. Exact counts come with your quote.
Reach the whole buying committee
A Polars DataFrames account is not one contact. We map the people who evaluate, buy, run and use it across High-Performance DataFrame Engineering.
These are examples. We build records for any department, seniority or custom title.
See exactly what you get
Every record carries 60+ fields, from verified email, direct dial and LinkedIn to full postal address, Polars DataFrames edition, coexisting stack and intent.
We deliver 60+ data fields per record, including intent data. The sample shows a selection only. Tell us which fields you need, including any that aren't listed here, and we'll add them to your list.
How we prove an account runs Polars DataFrames
No scraped résumés or stale directories. Three layers confirm a live installation before a contact reaches your list. Read our verification protocol
Live DNS & script signals
We inspect response headers, DNS MX and CNAME records and live JavaScript bundles to confirm a running Polars DataFrames instance.
DNS · CNAME · MX recordsHTTP headers · JS bundles✓ Verified against live infrastructure90-day hiring signals
We track job requisitions that ask for Polars DataFrames skills, which shows ongoing budget and headcount.
Pre-delivery SMTP handshake
Each email is tested against the destination mail server, and titles are checked against current company rosters.
Maximum bounce rate, or we replace the contacts. Your sender reputation stays clean.
Every email that hard-bounces within 30 days of delivery is replaced free, record for record.
Live SMTP and MX checks right before we send your file.
Clean CSV or XLSX, ready for one-click import.
What are you trying to do?
Each campaign needs a different data strategy. Pick your goal to see how we build the audience.
Find companies on rival platforms and reach the people evaluating a move to, or away from, Polars DataFrames.
Conquesting playbookPitch integrations, add-ons and complementary tools to companies already running Polars DataFrames.
Ecosystem playbookBuild account lists around Polars DataFrames deployment scale and engage the full committee across departments.
ABM playbookKnow the stack around every account
Polars DataFrames rarely runs alone. Every record is tagged with the tools detected alongside it, so you can segment by complementary stacks.
Open the coexistence matrixWhat Polars DataFrames customers look like
Anonymised profiles of companies in our Polars DataFrames dataset of 5,004+ accounts. Named accounts are shared in your free sample, never on a public page.
| Company size | Industry | Country | Employees | Revenue |
|---|---|---|---|---|
| Mid-market | Quantitative Finance | United States | 200–999 | $50M–$250M |
| Enterprise | Research | United States | 5,000+ | $1B+ |
| Upper mid-market | SaaS | United Kingdom | 1,000–4,999 | $250M–$1B |
| SMB | Bioinformatics | United States | 50–199 | $10M–$50M |
| Enterprise | Quantitative Finance | Canada | 10,000+ | $5B+ |
| Mid-market | Research | Germany | 500–999 | $100M–$250M |
| Mid-market | SaaS | United States | 200–999 | $50M–$250M |
| Enterprise | Bioinformatics | Australia | 5,000+ | $1B+ |
Plus 170 more countries. Ask for a country-by-country count of Polars DataFrames accounts and we'll include it with your free sample.
Build the list your way
Every list is assembled from source to your product tier, job function, geography and revenue band. Nothing is a fixed export.
Filter by what they actually run.
Match revenue, size and industry.
Target any territory.
What Polars DataFrames teams are struggling with
Know the friction before you reach out, and position your product where it matters.
pandas performance limits
Scaling beyond one machine
Code migration from pandas
“When you talk to companies who already use Snowflake and AWS about a native integration, the conversion rate skyrockets. Data InfoMetrix gave us the exact user list we needed.”
Polars DataFrames list questions, answered
How many companies use Polars DataFrames?
Data InfoMetrix tracks 5,004 companies using Polars DataFrames, with 22,593 verified contacts at those accounts as of October 2026. The largest groups are Quantitative Finance, Research and SaaS. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.
Who buys and manages Polars DataFrames inside a company?
Polars DataFrames is usually owned by High-Performance DataFrame Engineering. Decision-makers include Chief Data Officer, VP of Data & Analytics and CTO; Data Platform Lead and Analytics Engineering Manager shape the choice, and Data Engineers and Analytics Engineers use it day to day. Our Polars DataFrames list can include any of these roles.
Which Polars DataFrames products or editions can I target?
You can target accounts by the Polars DataFrames products they run, including Polars (Open Source), Polars Lazy API, Polars Streaming Engine, Polars Cloud and Polars GPU Engine. Tell us which edition or module matters and we filter the list to those accounts.
What other software do Polars DataFrames customers use?
Polars DataFrames customers commonly also run Python, Apache Arrow, DuckDB, Jupyter and AWS. Polars DataFrames is often connected to Delta Lake, so users of those tools overlap heavily. We can filter any list by this kind of stack overlap.
What are the main alternatives to Polars DataFrames?
The main alternatives to Polars DataFrames are pandas, Apache Spark and DuckDB. We also keep verified user lists for DuckDB, which is useful for competitive displacement campaigns.
When are Polars DataFrames customers most likely to buy?
Buying triggers we track for Polars DataFrames accounts include pipeline performance project, Polars Cloud trial, data science team growth and spark cost review. A common pain point is pandas performance limits: large data slows notebooks.
Can Data InfoMetrix deliver a free sample Polars contact list before ordering?
Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Polars criteria—including target job titles, company size, and region—delivered within one business day with no obligation.
How does Data InfoMetrix guarantee email deliverability for Polars contacts?
Data InfoMetrix provides a 99% email deliverability guarantee on all Polars datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.
Sourcing and compliance. Business contacts come from public company sources, professional directories and opt-in publishing partners, then go through SMTP verification and human review. Lists are for B2B outreach: include an unsubscribe link and honour opt-outs (CAN-SPAM), and have a lawful basis such as legitimate interest when you email people in the EU or UK (GDPR). Read how we source and verify data
Get your Polars DataFrames users list
Tell us your titles, regions and company size. We'll send counts, a quote and a free 10-record sample.
Related lists
Alternatives to Polars DataFrames, tools its customers also run, and more Data Analytics & Modern Data Stack lists.

