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99%+ verification accuracy · USPS & carrier-level checks

Data Verification Services

Inaccurate customer data costs you bounced mail, failed deliveries, and wasted marketing spend. Acelerar’s data verification team validates every email, phone number, and address in your database against authoritative sources so you stop paying to reach contacts that don’t exist.

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Data verification dashboard showing email and phone validation results with green checkmarks for verified and red flags for invalid records
Princeton University
Take-Two Interactive
Zynga
Thermo Fisher Scientific
WWF
Notch
Princeton University
Take-Two Interactive
Zynga
Thermo Fisher Scientific
WWF
Notch
Princeton University
Take-Two Interactive
Zynga
Thermo Fisher Scientific
WWF
Notch
Princeton University
Take-Two Interactive
Zynga
Thermo Fisher Scientific
WWF
Notch
500+
Teams Deployed
99.5%
Accuracy SLA
70%
Avg Cost Savings
7-Day
Team Deployment
4.9 out of 5·from 120+ verified reviews
Clutch (4.9)Google (4.8)GoodFirms (5)

Data Verification

What are data verification services?

Data verification is the process of checking existing records against authoritative sources to confirm their accuracy and validity. Unlike data entry (which creates records) or data cleansing (which fixes formatting), verification answers one question: is this data point real and current? Email verification checks that an address exists, accepts mail, and is not a spam trap. Phone verification confirms numbers are active, identifies line type (mobile vs. landline), and flags disconnected numbers. Address verification validates against USPS, Royal Mail, and international postal databases. For businesses that depend on outreach - sales, marketing, collections, or logistics - verified data is the difference between wasted budget and connected conversations.

Market Data

The data management outsourcing market

Data management outsourcing is growing as businesses deal with increasing data volumes.

$245B+
India IT-BPM industry revenue
NASSCOM, 2024
5.8M+
IT professionals in India
NASSCOM, 2024
15-30%
Average cost savings from outsourcing
IAOP, 2023

Cost Savings

The real cost of in-house data verification

A full-time data verification specialist in the US costs $38,000 to $46,000/year. With Acelerar, you get multi-source verification at a fraction of the cost.

In-House Data Verification Specialist (US)

$42K/yr

per year / per person

Salary · Benefits · Verification tools · Source access

Acelerar Data Verification

$13K/yr

per year / per person

Multi-source checks · Real-time API · 99%+ accuracy

Why Verify Your Data

Why businesses outsource data verification to Acelerar

99%+ Verification Accuracy

We verify against carrier-level databases for phone, SMTP-level checks for email, and USPS/CASS-certified sources for addresses. Each record gets a pass/fail/uncertain result with confidence scores.

Reduce Email Bounce Rates to Under 2%

Hard bounces damage your sender reputation and deliverability. Our email verification catches invalid, inactive, disposable, and role-based addresses before they hit your send list.

Eliminate Wasted Direct Mail Spend

Undeliverable mail costs $0.50-$2.00 per piece in wasted postage and printing. Address verification against USPS databases reduces return-to-sender rates by 35-45%, saving thousands on every campaign.

Real-Time & Batch Options

Need to verify a database of 500,000 records? Batch processing. Need to verify leads as they enter your CRM? Real-time API-based verification. We support both workflows for maximum flexibility.

Multi-Channel Verification

Email, phone, mailing address, company name, job title, and social profiles - we verify across channels so every field in your contact record is validated, not just one.

Pay Per Verified Record

No subscriptions, no minimum commitments. Pay per record verified, with volume discounts starting at 10,000 records. Transparent pricing with no hidden platform fees.

How It Works

From unverified data to validated records in 4 steps

1

Upload

Share your database or contact list in any format: CSV, Excel, CRM export, or direct system access. Specify which fields need verification.

2

Verify

Each record is checked against authoritative databases: SMTP validation for emails, carrier databases for phones, USPS/CASS for addresses.

3

Classify

Records are categorized: verified (safe to use), invalid (remove from lists), uncertain (requires manual review), with confidence scores for each.

4

Deliver

Clean, verified dataset returned in your format with a verification summary report: pass rates, failure reasons, and recommendations.

We work with your data platforms

Our teams are trained on the platforms you already use.

What our data management clients say

“The Acelerar team is a self-sustaining machine. They’ve become an extension of our own team.”

Jonathan Einav

Zynga, Zynga

“We needed reliable, fast data entry at scale. Acelerar delivered consistent quality from day one, no ramp-up time needed.”

Ryan Collier

Brafton Inc., Brafton

“Acelerar handled our entire catalog migration (50,000+ SKUs) without a single missed deadline.”

Eric Martindale

Elite Commerce Group, Elite Commerce Group

Industry Outlook

Where data management outsourcing is heading

Data volumes are exploding, and outsourced data management teams are evolving with AI capabilities.

2025
$854.6B
Global BPO market size
Grand View Research, 2024
2030
$350B
Projected Indian IT-BPM industry revenue
NASSCOM, 2024
2030
59%
Of workers will need upskilling by 2030
World Economic Forum, 2023
ISO 27001 Certified
ISO 9001:2015
NDA for Every Team Member
Encrypted Data Transfer

Data Verification Services FAQs

Data verification services confirm the accuracy and validity of existing records by checking them against authoritative sources. This includes verifying email deliverability, phone number activity, mailing address existence, company records, and contact information. The goal is to identify which records in your database are real, current, and usable.
Data verification is the process of checking a data point against a trusted source to confirm it is accurate. For email, this means SMTP-level validation to confirm the address exists and accepts mail. For phone numbers, carrier-level checks confirm the line is active. For addresses, USPS or postal database matching confirms deliverability.
The four primary types are format verification (checking data matches expected patterns like email syntax), existence verification (confirming the data point actually exists in external systems), accuracy verification (cross-referencing against authoritative sources), and currency verification (confirming data is still current and active, not outdated).
Email verification typically costs $0.003-$0.01 per record. Phone verification ranges from $0.01-$0.05 per record. Address verification (USPS/CASS) costs $0.005-$0.02 per record. A full multi-field verification of 50,000 records typically runs $1,500-$4,000. Volume discounts apply for databases over 100,000 records.
We verify email addresses (personal and business), phone numbers (mobile, landline, VoIP), mailing addresses (US and international), company names and domains, job titles against company directories, social media profile URLs, and business registration numbers. Multi-field verification checks all fields on a single record.
Email verification uses SMTP-level validation: we check MX records, test mailbox existence without sending, and detect disposable, role-based, and catch-all addresses. Phone verification queries carrier databases to confirm activity status, identify line type (mobile/landline/VoIP), and flag disconnected or reassigned numbers.
Our verification accuracy exceeds 99% for email and phone validations. Address verification against USPS/CASS databases achieves 99.5%+ accuracy. Each verified record includes a confidence score so you can set your own threshold for what counts as "verified" in your workflows.
Yes. We perform CASS-certified address verification against the USPS database for US addresses, and validate international addresses against Royal Mail, Canada Post, Australia Post, and other national postal services. Verification includes standardization to postal format, deliverability confirmation, and ZIP+4 assignment.
Business contact data decays at 25-30% per year due to job changes, company moves, and email/phone turnover. We recommend quarterly verification for active marketing databases, semi-annual verification for general CRM records, and real-time verification for new leads entering your system.
Both. Batch verification processes your existing database in bulk and is ideal for periodic database cleanup. Real-time verification checks records as they enter your system (via API or webhook integration) to prevent bad data from getting into your CRM in the first place. Most clients use a combination of both.

Stop paying to reach contacts that don’t exist.

Get a free verification sample on 1,000 records from your database within 48 hours.

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