List Building

A targeted, verified contact list built to your exact criteria — so outreach campaigns start with prospects who actually fit.

  • Built to your ideal-customer criteria
  • Every contact verified before delivery
  • Yours to keep and use anywhere

Trusted by growth-focused companies across industries

Temple University ELIPhiladelphia Museum of ArtBrightside AcademyB Positive PlasmaXactusResinTechSageGlassBenetrendsWalnut Hill CollegeKatz JCCNY Kids ClubGather WorkspacesPacific WorkplacesRandall ReillyBoehringer LaboratoriesJamestown North AmericaJewish Federation of Southern New JerseySharing ExcessNamocellCommonwealth Equity ServicesEvergreen Wealth SolutionsAxial Financial GroupNew Outlooks ConstructionSureWay Property ManagementFull ThrottleThe Bucks ClubTenant ReportsWorkSimpleLSR WellnessRecess

Bad lists waste good campaigns

Bounced emails, wrong titles, companies that were never a fit — a weak list drags down deliverability and buries your team in dead ends. We research and validate every contact against your criteria so the campaign is judged on the message, not the data.

High-Quality, Validated Contacts

  1. 01

    Strategic Audience Development

    Tailor your list building strategy to attract and engage the right audience for your business.

  2. 02

    Validated Prospect Acquisition

    Ensure the quality and reliability of your prospects by acquiring validated and verified contacts.

  3. 03

    Optimal Contact Generation

    Generate a targeted and valuable contact database to maximize your outreach and conversions.

  4. 04

    Reliable Audience Expansion

    Expand your audience base with confidence, knowing that the added contacts are trustworthy and reliable.

Our Process For Achieving Results

01.

Targeted audience analysis

02.

Strategic list building

03.

List management and optimization

Building Your Ideal List

  1. Target Audience Identification

  2. Research and Data Collection

  3. Lead Aggregation Strategies

  4. Contact Verification and Validation

  5. List Segmentation and Organization

Expectations

  1. 01

    High-quality and relevant contacts

  2. 02

    Accurate and verified contact information

  3. 03

    Compliance with privacy and data protection regulations

What clients say

  • LSR Wellness
    The team at 215 Marketing is capable, energetic, and a pleasure to work with. We highly recommend them for digital marketing needs.
    Adam RosenLSR Wellness

Common questions

How do you verify contacts?

Every record runs through email validation and a manual spot-check against public sources before delivery.

Do we own the list?

Yes. It's delivered to you as a clean, segmented file you can load into any CRM or outreach tool.

Can you run the outreach too?

We can. Pair list building with our email or LinkedIn outreach programs to take it from list to booked meetings.

Start with a list worth emailing

Tell us who you're trying to reach and we'll scope the list.