Better Data.
Better Lists.
Better Targets.
Anyone can hand you a big list. We build and validate the specific data you need — shaped around who you're targeting and how you'll actually use it — so you stop wasting money on raw, generic leads.
Raw data isn't the answer
There's no shortage of list sellers and bulk data providers — big lists are easy to buy. What's rare is data that's been validated against who you're targeting and how you actually work.
Generic lists waste money
Off-the-shelf lists are sold to everyone and rarely match who you're actually trying to reach.
Old data goes stale
The list you already have is probably outdated, incomplete, or poorly organized.
Unclear audience
Many businesses don't really know who their best audience is — so targeting is a guess.
Weak targeting, weak results
Campaigns underperform when the people behind the data aren't the right fit.
Paying per lead adds up
Chasing leads one at a time gets expensive fast — and you don't own the strategy.
Data sits unused
Even good data fails when it isn't organized into something you can actually act on.
Validated data, built around how you'll actually use it
Before we build anything, we hold an alignment meeting: your ideal customer profile plus your process flow — how the data will actually be deployed. That one conversation determines what we build, how we validate it, and how it goes to work.
- Align first — your ICP and your process flow: who you want, and exactly how you'll use the data.
- Build or enrich the data — new lists, or better details on the list you have.
- Validate everything — records are checked before they reach you, so outreach runs on data you can trust.
- Find more of your best — lookalike audiences from customers you already serve.
- Keep it fresh — ongoing updates so your outreach never runs on stale data.
From "who do we target?" to campaign-ready
Plain business language. No enterprise software to learn. Just the right data, organized for action.
Data services built around your goal
Pick what you need now — or use us as your ongoing data partner across all of it.
Custom Prospect Lists
Targeted lists built by industry, role, company type, location, demographics, behavior, intent signals, or a specific campaign goal.
Customer List Enrichment
Take an existing customer, lead, or email list and add better contact details, company data, decision-maker info, and useful fields — cleaned and organized.
Intent Data & Audience Building
Find people, companies, neighborhoods, or segments showing signs of interest, need, or buying behavior — then build audiences ready to reach.
Lookalike Audience Development
Analyze the customers you already serve well and identify more people or businesses that look like your best ones.
Niche & Persona Research
Answer the big questions: who exactly should we target, what industries need this most, which titles and decision-makers to reach, and where the best opportunities are.
Company & Market Research
Research specific companies, industries, locations, buyer types, or opportunity segments to support campaigns, recruiting, expansion, and sales targeting.
Ongoing Data Subscription Support
We're a data partner, not a one-time list seller. Get recurring list updates, fresh campaign audiences, customer enrichment, and niche research on a schedule that fits your outreach.
If you need specific, useful data — this is for you
We work with companies that live and die by reaching the right people.
Sales & business development
- Commercial & B2B sales teams
- Companies that rely on outside data for outreach
- Teams launching a new offer or territory
Recruiting & staffing
- Recruiters & staffing firms
- Talent & candidate sourcing
- Targeted outreach by role & industry
Agencies & consultants
- Marketing firms & agencies
- Consultants & coaches
- Better targeting for client campaigns
Subscription & membership
- Subscription-based businesses
- Membership & recurring-revenue models
- Finding more ideal customers
Local & regional growth
- Home, medical, dental & wellness providers
- Real estate & property services
- Franchise & multi-location businesses
Lists that need enrichment
- Old or incomplete customer lists
- Financial, insurance & professional services
- Software / SaaS companies
Real things our clients come to us for
If any of these is on your list, we can help.
I need a list of companies that match this exact profile.
I want to enrich my old customer list and finally clean it up.
I need to find more people like my best customers.
I want to target a specific industry or job title.
I need fresh data every month for ongoing outreach.
I want to research a new niche before I spend money marketing to it.
I need better data for postcards, email, LinkedIn, ads, or sales calls.
I'm entering a new territory and need to know who's actually there.
It starts with an alignment meeting
One conversation — your ideal customer profile plus your process flow — determines what we can do for you and how it will be deployed.
The alignment meeting
We learn your ICP and your process flow — exactly how you'll use the data. This shapes everything.
Build or enrich the data
We assemble a new list or improve the data you already have.
Validate & organize
Every record is checked, then structured into campaign-ready lists and audiences.
Keep it fresh & useful
We update and refine over time so your outreach stays sharp.
A different kind of data company
Yes, there are list buyers and bulk data providers. But if you want truly validated data, Groupserv is the place you want to be.
What we're not
- ✕ Generic list selling, sold to everyone
- ✕ Raw data dumps — big lists, zero validation
- ✕ Overpriced, pay-per-lead generation
- ✕ Complicated enterprise software to learn
- ✕ One-size-fits-all "data intelligence platform" hype
What we are
- ✓ Practical, custom, campaign-ready data
- ✓ Validated against your ICP and your process before it reaches you
- ✓ Built around your real goal, not a template
- ✓ Clear pricing and plain language
- ✓ An ongoing partner as your needs change
Real partners — not a data vendor
You work directly with the people who do the work — no account-manager runaround.
Greg Yates
Greg started Groupserv to help companies stop wasting money on generic lists. He works directly with you to define exactly who to reach and build the data to get there.
David Ask
David leads new business and partnerships — often your first point of contact for scoping the right data and getting your project moving.
- ✓ Straight talk — no jargon, no runaround
- ✓ Custom to your goal, not a one-size template
- ✓ An ongoing partner as your business grows
Start with an alignment meeting
Tell us who you're trying to reach, what you already have, and how you plan to use the data. That one conversation determines what we can do for you — and how it gets deployed.
Privacy Policy
Groupserv Management LLC ("Groupserv," "we," "us," or "our") respects your privacy. This policy explains what information we collect, how we use it, and your choices when you visit our website or contact us by phone, email, or text message (SMS).
Information we collect
- Information you give us — name, email, phone number, company, and details you provide when you contact us or opt in via our website.
- Usage information — basic technical data such as IP address, browser type, and pages visited.
How we use your information
- To respond to inquiries and provide requested services.
- To contact you by phone, email, or SMS where you have provided consent.
- To improve our website and services, and to meet legal obligations.
SMS / text messaging
You may opt in to receive text messages from Groupserv through the SMS opt-in chat widget on our website by providing your mobile number and agreeing to receive messages. If you opt in, we use your number only for messages related to your inquiry, account, or requested services. Message frequency varies. Message and data rates may apply. Reply STOP to opt out and HELP for help. Consent to receive texts is not a condition of any purchase. We do not sell or share your mobile opt-in information or consent with any third parties for their marketing purposes.
How we share information
We do not sell your personal information. We may share information with trusted service providers (e.g., hosting, CRM, email/SMS delivery) only as needed to perform those services, or when required by law.
Data retention & security
We keep personal information only as long as needed for the purposes described here or as required by law, using reasonable safeguards to protect it.
Your choices
You may request access to, correction of, or deletion of your information, and opt out of marketing at any time by contacting us below.
Contact us
Groupserv Management LLC
415 E Main Street, Casey, IL 62420
Phone: (217) 310-3150 · Email: [email protected]
Terms of Service
These Terms govern your use of the Groupserv Management LLC website and services. By using our site or submitting a form, you agree to these Terms.
Our services
Groupserv provides data services including custom prospect lists, customer list enrichment, intent data and audience building, lookalike audiences, niche and persona research, company and market research, and ongoing data support. Specific deliverables, timelines, and pricing are agreed in a separate proposal or agreement.
Use of the website
You agree to provide accurate information and to use the site lawfully. You may not disrupt the site, access it without authorization, or use it to send unlawful or harmful content.
Messaging terms (SMS)
- Types: responses to your inquiry, appointment/account messages, and service updates.
- Frequency: varies based on your interaction with us.
- Cost: Message and data rates may apply.
- Opt-out: Reply STOP at any time.
- Help: Reply HELP, or email [email protected].
- Consent is not a condition of any purchase.
Carriers are not liable for delayed or undelivered messages. See the Privacy Policy above for how we handle your information.
Intellectual property
The content, branding, and materials on this site are owned by Groupserv or its licensors and may not be copied or reused without permission.
Disclaimers & limitation of liability
The website and services are provided "as is" without warranties of any kind. To the fullest extent permitted by law, Groupserv is not liable for indirect, incidental, or consequential damages arising from your use of the site or services.
Changes to these Terms
We may update these Terms from time to time. Continued use of the site after changes means you accept the updated Terms.
Contact us
Groupserv Management LLC
415 E Main Street, Casey, IL 62420
Phone: (217) 310-3150 · Email: [email protected]