We need to grow our email list of supporters. I… | Parse
We need to grow our email list of supporters. Is there a digital marketing service that can help us with lead generation?
Data as of Sep 26, 2026 · Based on 355 AI responses from ChatGPT Search and Google AI Mode · See how Parse measures this
To grow your email list of supporters, you can choose between self-service software tools and specialized marketing agencies. Software platforms like HubSpot, Brevo, and ActiveCampaign provide automation, landing pages, and forms to capture and nurture leads. Alternatively, if you need professional strategy, agencies such as Media Cause, Torchbox, and Karma Campaigns specialize in nonprofit donor acquisition, digital fundraising, and targeted lead generation campaigns.
Best for organizations needing an all-in-one platform to consolidate CRM, landing pages, and forms. It excels at managing the entire supporter journey, though it may have a steeper learning curve than simpler tools.
Yes, there are several top-tier digital marketing services and software platforms designed specifically for lead generation and email list growth.
Choosing the right platform depends on whether you need inbound lead capture (like forms and landing pages on your website) or outbound prospecting (finding and emailing targeted contacts).
Top Digital Marketing & Lead Generation Services
HubSpot is an all-in-one inbound marketing and CRM platform that excels at creating high-converting landing pages, pop-up forms, and lead magnets to grow your supporter base organically.
Instantly.ai is a powerful outreach and lead generation tool that helps automate email campaigns, verify lead lists, and warm up email sender domains to scale outbound acquisition safely.
Apollo.io is an expansive contact database and engagement platform ideal for finding targeted supporter profiles, filtering by specific demographics or interests, and launching direct email sequences.
Constant Contact is a classic, beginner-friendly email marketing platform that includes built-in list-growth tools like social media lead ads, sign-up forms, and event registration.
Moosend offers affordable, user-friendly email marketing equipped with dedicated landing page builders and subscription forms designed explicitly to boost audience acquisition.
To help narrow down the best choice, tell me:
Are you looking to capture leads inbound (people visiting your site) or outbound (reaching out to cold contacts)?
What is the primary cause or organization type you are growing this list for?
Yes. If by “supporters” you mean people who have affirmatively opted in to hear from your organization/campaign, there are agencies that specialize specifically in political and advocacy list growth.
A few types of providers to look at:
Political Marketing Strategies — offers donor/volunteer acquisition, landing pages, paid acquisition, email-list growth, CRM integration, and nurture sequences. It advertises packages starting at $2,000/month.
Campaign Solutions — focuses on political digital fundraising and explicitly offers list-building and donor acquisition.
Triptych Strategies — provides digital advertising, list building, email engagement, SMS, and digital organizing.
Boulder Strategies — offers political/advocacy digital advertising, targeting, data acquisition, and email fundraising.
Legacy List Marketing — specializes in political/nonprofit list brokerage, including prospecting, renting, and augmenting donor files.
One important distinction: lead-generation agency ≠ email-list broker. If your goal is to build a long-term owned list of genuinely interested supporters, I'd specifically ask prospective vendors about paid acquisition → landing page → opt-in → welcome/nurture sequence → CRM integration, rather than simply purchasing a database of email addresses. Current campaign-email guidance also cautions that buying/renting cold lists can create deliverability and compliance problems.
If you tell me (1) whether this is a candidate campaign, PAC, nonprofit, or advocacy organization, (2) your approximate monthly budget, and (3) whether you're looking for conservative, progressive, or nonpartisan providers, I can find several agencies that fit and compare their services and pricing.
Yes. If your goal is specifically growing an opt-in email list of supporters, rather than simply sending better emails to people you already have, there are agencies and services that specialize in nonprofit acquisition.
A few worth looking at:
care2services.com — Specifically offers supporter acquisition (“Care2 Grow”), using petitions/pledges and other actions to acquire new, consented email or phone contacts. They emphasize “new-to-list” supporters and real-time delivery.
thedigitalco-op.com — Focuses heavily on nonprofit list growth, using shared data and modeling to identify prospects likely to engage with an organization.
mediacause.com — A nonprofit-focused digital agency offering fundraising, lead generation, email marketing, Google Ad Grants, and paid digital campaigns.
108degrees.com — Particularly relevant if you want both acquisition and the infrastructure afterward: they work on lead magnets, signup forms, event capture, list health, email automation, and nurturing.
wholewhale.com — A nonprofit digital agency that specifically lists lead-generation campaigns, optimized signup forms, pop-ups, and other list-growth strategies alongside email/content work.
bluewing.co — Focuses on paid media for nonprofits and connects advertising to CRM and donation tracking. Their engagements start at $2,000/month, before ad spend.
What I'd look for
For your particular objective, I'd ask each provider whether they can deliver new, permission-based subscribers, rather than simply selling or renting an email list. A good acquisition program might combine:
That distinction matters because a large purchased list isn't necessarily a useful supporter list.
If you tell me what kind of organization/cause you are promoting, roughly how large your current list is, and your monthly acquisition budget, I can narrow this to a few services that fit and compare their approaches and likely pricing.
Yes, several digital marketing platforms and services specialize in lead generation and email list growth for organizations and supporter-based campaigns.
Platforms combine landing page builders, signup forms, lead magnets, and automated nurturing sequences to convert website visitors into dedicated subscribers.
HubSpot : Best for merging robust CRM data, landing pages, and lead capture forms with advanced email marketing and automation.
Constant Contact : Great for non-profits and smaller organizations looking for easy-to-use list-building tools, event registration, and social media posting.
Brevo : Ideal for scaling lists without paying extra for contact growth, offering SMS marketing, landing pages, and flexible signup forms.
Mailchimp : Excellent for beginners who need intuitive pop-up forms, landing page templates, and basic ad management tools to acquire new leads.
If you'd like to narrow down the choices, tell me:
Are you a non-profit, political campaign, or business?
What is your approximate budget?
I can help you select the most cost-effective platform for your goals.
Yes, there are plenty of digital marketing services, platforms, and software tools that specialize in lead generation and email list building . The right choice depends on whether you want a software tool to manage things yourself or a done-for-you agency to run campaigns for you.
Top options are broken down below by category:
All-in-One Marketing & Lead Capture Platforms (Software)
If you want to build landing pages, embed opt-in forms on your website, and automate welcome sequences yourself:
HubSpot : Excellent for inbound marketing, offering a centralized suite for landing pages, forms, CRM, and email workflows.
ActiveCampaign : Renowned for powerful marketing automation, custom lead sorting, and dynamic segmentation.
Mailchimp : Great for beginners, letting you quickly spin up sign-up forms, pop-ups, and basic landing pages to capture subscriber info.
Unbounce : A specialized tool built to quickly design and A/B test high-converting lead generation landing pages without needing a developer.
Contact Finding & Verification Tools
If your strategy involves targeted outreach or building lists of specific professional supporters/donors:
UpLead : Combines lead generation with real-time email verification and a high data accuracy guarantee.
Full-Service Email & Growth Agencies
If you prefer to outsource the strategy, ad-spend management, and copywriting to an external team:
Specialized Email Agencies: Agencies like Flowium or InboxArmy handle full-cycle list growth, automation architecture, and campaign management.
Digital Strategy / Lead Gen Agencies: Local or national inbound marketing agencies focus on paid social ads (Meta, LinkedIn) or content funnels specifically optimized to drive email opt-ins.
To help narrow down the best path for your supporters, tell me:
Are you looking for a software tool to manage in-house, or an agency to do it for you?
Are your supporters primarily consumers (B2C) or businesses/professionals (B2B)?
Yes. If your goal is specifically to grow an opt-in email list of people who may become donors, volunteers, advocates, or recurring supporters, there are agencies that specialize in exactly this.
A few worth looking at:
Whole Whale — Particularly relevant if you want strategy + execution. They explicitly offer nonprofit list-growth campaigns using lead-generation campaigns, optimized signup forms, pop-ups, and other conversion tactics.
108 Degrees Digital Marketing — Focuses heavily on nonprofit email programs, including lead magnets, signup forms, event capture, list growth, segmentation, and automated nurturing.
Media Cause — A broader nonprofit digital agency that combines lead generation, fundraising, email, paid advertising, and Google Ad Grants.
Elevation — Offers nonprofit-focused SEO, paid advertising/Google Ad Grant management, email, and conversion-oriented digital marketing, with sign-ups and donations as outcomes.
Care2 — More specialized for acquiring new supporters at scale. Its model uses petitions/pledges and permission-based marketing to generate new opt-in supporters.
BlueWing — A good option if you already have a CRM and want paid advertising connected directly to supporter acquisition and fundraising measurement.
What I'd recommend
Don't hire someone simply to "get you email addresses." Buying or renting lists is generally the wrong strategy for a supporter organization. The better model is:
That gives you a list of people who have actually demonstrated interest in your mission.
If you tell me what kind of organization/cause you have, roughly how big your current list is, and your monthly marketing budget, I can narrow this down to 3–5 agencies that are a good fit and compare their likely approach and cost.
Yes, several digital marketing platforms and specialized tools are designed specifically for lead generation and email list growth . Instead of relying on manual outreach, these services integrate directly with your website to capture, track, and nurture potential supporters.
OptinMonster — A versatile conversion optimization tool that turns casual website visitors into subscribers using targeted pop-ups, slide-ins, and exit-intent technology, as detailed in the review by Silver Bell Group.
HubSpot — An all-in-one inbound marketing and CRM platform that connects custom forms, calls-to-action (CTAs), and automated supporter journeys into a single dashboard, featured on the Agile CRM Blog.
Mailchimp — A leading email marketing platform offering built-in sign-up forms, landing pages, and lead capture workflows to grow and segment your audience, outlined by Skrapp.io.
Leadpages — A dedicated landing page builder optimized for high-converting lead capture, allowing you to deploy professional sign-up assets without coding, highlighted by Preqin.
If you want to move forward, I can:
Help you choose the right platform based on your technical setup and budget
Outline a high-converting lead magnet strategy to attract your target supporters
Draft a series of welcome email templates to engage your new subscribers
Yes. There are agencies and specialized services that focus specifically on nonprofit supporter acquisition and email-list growth, rather than generic digital marketing.
A few worth looking at:
The Digital Co-Op — Particularly interesting if your primary goal is growing the email list. It uses shared nonprofit data and machine learning to identify prospective supporters and offers email-prospect acquisition.
Fresh Eyes Digital — Focuses on nonprofits and offers email acquisition, social promotion, advertising strategy, content, and fundraising.
Whole Whale — A nonprofit-focused digital agency that specifically mentions lead-generation campaigns, optimized signup forms, pop-ups, and other list-growth tactics.
108 Degrees Digital Marketing — Specializes in nonprofit email programs and list growth, including lead magnets, signup forms, event capture, re-engagement, and email automation.
Community Boost — A larger nonprofit digital-marketing agency covering paid media, Meta, email, conversion optimization, and supporter acquisition. They report having generated 100,000+ enrollment leads for nonprofits.
Grassroots Analytics — Offers nonprofit email acquisition using data and analytics, along with SMS and other acquisition programs.
What I'd look for
If your goal is specifically “give us more people who want to hear from us”, I'd prioritize a provider that can do:
Paid acquisition — Meta/Instagram, Google, etc.
Lead magnets — petitions, guides, quizzes, reports, event registrations, or other compelling offers.
Landing pages + signup optimization.
Email welcome/nurture sequences so new subscribers don't immediately go cold.
Conversion tracking — cost per new subscriber, subscriber-to-donor rate, and eventual donor value.
Quality controls — you want engaged supporters, not merely a huge number of cheap email addresses.
In particular, The Digital Co-Op looks worth investigating if list growth itself is the central objective, while Community Boost, Fresh Eyes, or 108 Degrees may make more sense if you want an agency to manage the broader acquisition-to-email relationship.
If you tell me what kind of organization/cause you are, roughly how big your current email list is, and your monthly acquisition budget, I can narrow this down to 3–5 providers that are a particularly good fit and compare likely costs/services.
Yes, there are several specialized digital marketing tools and full-service agencies that focus heavily on lead generation and growing email subscriber lists . Depending on whether you want a self-service software to capture traffic on your own site or an outsourced agency to drive external prospecting, here are the top options:
OptinMonster – Best for on-site conversion and lead capture. It lets you create high-converting pop-ups, slide-ins, and gamified wheels to turn casual website visitors into email subscribers.
ActiveCampaign – Great for combining lead capture forms with advanced email marketing and automated nurturing workflows.
GetResponse – Excellent for all-in-one list building, featuring landing page builders, built-in form creators, and paid ad management tools to pull in new leads.
Belkins or CIENCE Technologies – Full-service B2B/outbound lead generation agencies if you prefer a done-for-you approach utilizing targeted outreach and prospecting.
To help narrow down the best fit, could you tell me:
Are you looking for a software tool to capture emails from your existing website traffic, or an agency to actively source new supporters externally?
What kind of organization or cause are you representing?
Yes. There are agencies that specialize specifically in nonprofit supporter acquisition and email-list growth, rather than generic digital marketing.
A few worth looking at:
Whole Whale — nonprofit-focused digital agency that explicitly works on list growth through lead-generation campaigns, optimized signup forms, website pop-ups, and content offers.
BlueWing — specializes in paid media for nonprofits and connects advertising to CRMs so you can track whether new leads eventually become donors/supporters. Their engagements start around $2,000/month, before ad spend.
Beeline Marketing — focuses on nonprofits and offers Google Ads/Ad Grants, Meta advertising, email marketing, landing pages, and lead-generation tactics. They specifically advertise growing subscriber lists and converting subscribers into donors.
108 Degrees Digital Marketing — particularly interesting if the priority is building the email program itself. They offer list-growth strategy, lead magnets, signup forms, event capture, nurturing, automation, and email-platform optimization.
Elevation — a broader nonprofit digital-marketing agency covering Google Ad Grants, SEO, email, social, and conversion-focused campaigns.
What I'd recommend
If your primary goal is “get more qualified people onto our supporter email list,” I wouldn't hire an agency simply to send more emails. I'd look for a partner that can run the entire acquisition funnel:
Ads/search/social → landing page or compelling signup offer → email capture → automated welcome series → supporter conversion
That distinction matters. You want to measure cost per new qualified subscriber and ultimately cost per new donor/advocate, not just clicks or email opens.
I'd also be cautious about companies offering to simply sell you a giant email list. Purchased lists can be a poor fit for supporter development and can create deliverability/consent problems. A service like Grassroots Analytics, for example, does offer nonprofit email-acquisition and prospect-data services, but I'd want to understand exactly how contacts are acquired and what permissions you receive before pursuing that route.
If you tell me what kind of organization you are, roughly how big your current email list is, and your monthly marketing budget, I can narrow this to 3–5 agencies that are a good fit and compare their services/pricing.
HubSpot is an all-in-one inbound marketing and CRM platform that excels at creating high-converting landing pages, pop-up forms, and lead magnets to grow your supporter base organically.
Instantly.ai is a powerful outreach and lead generation tool that helps automate email campaigns, verify lead lists, and warm up email sender domains to scale outbound acquisition safely.
