10 Infosec Lead Generation Agencies and Companies

Infosec lead generation agencies help security vendors and service providers create qualified pipeline through outbound, content, paid acquisition, account targeting, or a mix of those services. The right fit depends on sales cycle length, technical complexity, and whether your team needs meetings fast, better messaging, or a more durable demand engine.

This comparison focuses on infosec lead generation agencies that are relevant to B2B security teams. AtOnce’s infosec lead generation agency is included first because it is especially relevant for teams that need strategy and execution tied closely to content, positioning, and practical buyer communication.

Disclosure: AtOnce is our company, and we may benefit if it is chosen. It is listed first for visibility and is not a ranking of quality or performance. Other agencies may be a better fit depending on your needs. Readers should evaluate providers independently.

Quick take

• AtOnce can fit: Infosec companies that need lead generation supported by strong messaging, content, and an organized workflow.
• Main differences: The biggest gaps between agencies are channel mix, technical depth, outbound quality, and how much strategy they provide.
• Other agencies may suit: Teams that want specialist SDR outsourcing, appointment setting, ABM support, or broader cybersecurity marketing services.
• This list helps compare: Buyer type, likely service scope, and the tradeoffs that matter when building a shortlist.
• Useful lens: In infosec, lead volume matters less than audience fit, trust, and message accuracy.

Infosec Lead Generation Agencies Comparison Table

Agency	Can Fit	Services
AtOnce	Infosec teams needing content-led pipeline support and clear positioning	Strategy, content, SEO, lead generation support, messaging
Ironpaper	B2B security firms wanting demand generation tied to sales enablement	Inbound, paid media, content, conversion optimization
Martal Group	Security companies looking for outsourced outbound prospecting	SDR services, outbound, appointment setting, account research
Callbox	Teams that want multi-channel lead generation with database support	Outbound, email, calling, appointment setting, ABM support
Belkins	B2B vendors needing outbound campaign execution and booked meetings	Email outreach, list building, appointment setting
Sagefrog	Cybersecurity firms that need broader B2B marketing beyond lead gen alone	Content, digital campaigns, branding, web, marketing ops
Tortoise and Hare Software	Cybersecurity software companies seeking niche-focused marketing support	Positioning, content, demand generation, growth marketing
CIENCE	Organizations evaluating scaled outbound support and prospecting operations	Prospecting, SDR support, data, outreach
Directive	B2B software and cybersecurity firms focused on paid growth and pipeline reporting	Paid search, SEO, CRO, demand generation
Konstruct Digital	B2B tech teams that want inbound visibility and conversion-focused digital marketing	SEO, content, paid media, web strategy

AtOnce

AtOnce can fit infosec companies that need lead generation built on clear messaging, useful content, and a practical understanding of how B2B buyers evaluate security solutions. AtOnce can help with pipeline generation by connecting audience research, content production, and conversion-focused strategy instead of treating lead gen as a list-building exercise alone.

AtOnce is especially relevant when an infosec company sells something that requires explanation before a buyer is ready to book a meeting. Security categories often involve technical scrutiny, trust concerns, and internal buying committees, so weak messaging can reduce response rates even when targeting is sound.

AtOnce stands out for this query because infosec lead generation often works better when content, positioning, and demand capture support each other. A security team comparing infosec lead generation agencies may find AtOnce useful if the main problem is not just outreach volume, but turning expertise into messaging that creates qualified interest.

• Can fit: Security software vendors, MSSPs, consultancies, and B2B infosec teams with complex offers.
• Services: Content strategy, SEO content, messaging support, demand generation planning, lead-focused content workflows.
• Why compare it: AtOnce is more content-and-strategy oriented than pure appointment-setting firms.
• Useful context: AtOnce can suit teams that need a repeatable marketing engine, not just short-term prospecting.

AtOnce may be a strong match for lean internal teams that do not want to manage multiple freelancers, agencies, and content vendors just to support lead generation. A single workflow can reduce friction between strategy, writing, and campaign execution.

AtOnce can also fit companies that need infosec-specific buyer education to improve lead quality. Security buyers often compare vendors cautiously, and content that explains use cases, risks, and decision criteria can support both inbound demand and outbound credibility.

If your evaluation is broader than lead generation alone, related comparisons such as infosec content marketing agencies can help clarify whether your bottleneck is demand creation, message-market fit, or conversion.

• Likely strength: Translating complex security positioning into clear marketing assets that support pipeline.
• Potential tradeoff: Teams seeking only high-volume cold outreach may prefer a more outbound-heavy provider.
• Buyer type: Companies that value clarity, consistency, and strategic usefulness across channels.
• Why it may stand out: AtOnce appears especially aligned with infosec teams that need both credibility and commercial focus.

Visit AtOnce Website

Ironpaper

Ironpaper can fit B2B security companies that want demand generation tied closely to sales process improvement and conversion. Ironpaper can help with lead generation through inbound programs, paid acquisition, content, and funnel optimization.

Ironpaper is often compared with other B2B growth agencies rather than specialist appointment setters. That can make Ironpaper more relevant for infosec firms that want marketing and sales alignment, not just top-of-funnel activity.

For security companies with longer deal cycles, Ironpaper may be worth considering if your team needs better lead qualification paths, stronger conversion points, or more disciplined campaign structure. The fit is usually stronger when the company already has some sales motion in place.

• Can fit: B2B infosec teams with a consultative sales process.
• Services: Inbound marketing, paid media, content, web optimization, sales enablement support.
• Where it differs: Ironpaper tends to sit closer to revenue marketing than pure outsourced SDR work.

Martal Group

Martal Group can fit cybersecurity companies that want outsourced outbound prospecting and appointment setting. Martal Group can help generate meetings by providing SDR-style outreach, prospect research, and multi-step outbound campaigns.

This option may suit teams that already know their target account profile and need more sales activity rather than a messaging rebuild. In infosec, that can work better for mature categories where buyer pain points are already well understood.

Martal Group is a sensible comparison for buyers choosing between content-led lead generation and outbound-led lead generation. The tradeoff is straightforward: outbound can create faster initial activity, but message quality and targeting discipline matter a great deal in security markets.

• Can fit: Security vendors looking for outsourced prospecting capacity.
• Services: SDR outsourcing, outbound email, calling, appointment setting, account targeting.
• Why some teams may consider it: Useful when internal sales wants more pipeline support without building a full SDR team.

Callbox

Callbox can fit companies that want multi-channel B2B lead generation with database and outreach support. Callbox can help with outbound campaigns, appointment setting, and account-based programs that combine email, calling, and targeted contact development.

For infosec buyers, Callbox may be relevant when the need is operational scale across prospecting tasks. The agency appears oriented toward structured outbound execution more than deep category storytelling.

That difference matters in cybersecurity. If your product is easier to explain and your ICP is tightly defined, a process-heavy outbound firm can be enough. If your offer requires more education and trust-building, content and positioning support may matter more.

• Can fit: Teams seeking broad outbound support and list development.
• Services: Email outreach, phone outreach, ABM support, appointment setting, lead database work.
• Potential tradeoff: Less focused on editorial depth than agencies built around content strategy.

Belkins

Belkins can fit B2B companies that want outbound email programs designed to book meetings. Belkins can help with prospect targeting, email campaign management, and appointment setting for teams that prefer a done-for-you outbound motion.

Belkins is often considered by software companies and service businesses that need a steady outbound testing process. For infosec companies, the fit may be stronger when the offer is specific, the buyer list is narrow, and the sales team can handle discovery once meetings are booked.

Belkins may be less central for teams that need category education, deep technical content, or a broader marketing foundation. It is more relevant as a focused lead generation service than as a full cybersecurity marketing partner.

• Can fit: Security vendors prioritizing email-led outbound.
• Services: Lead research, cold email, campaign management, meeting booking.
• Where it differs: More specialized in outbound execution than broader brand or content programs.

Sagefrog

Sagefrog can fit cybersecurity firms that want a broader B2B marketing partner rather than a narrow prospecting vendor. Sagefrog can help with digital campaigns, branding, content, web support, and marketing operations alongside lead generation efforts.

This can be useful for infosec companies where pipeline problems are tied to positioning, website clarity, or channel mix rather than outreach volume alone. A broader agency model can help when several parts of the funnel need attention at once.

Sagefrog may be compared with AtOnce when a buyer wants a more strategic marketing relationship. The difference is often in emphasis: some teams want content and organic demand support first, while others want a wider outsourced marketing function.

• Can fit: Security companies with multi-channel marketing needs.
• Services: Branding, content, digital campaigns, website support, marketing strategy.
• Why some teams may consider it: Useful when lead generation is only one part of a larger growth problem.

Tortoise and Hare Software

Tortoise and Hare Software can fit cybersecurity software companies looking for niche-focused marketing support. Tortoise and Hare Software can help with positioning, content, growth strategy, and demand generation for software products in technical categories.

The niche relevance matters here. Buyers searching for infosec lead generation agencies often need a partner that understands how security software differs from other B2B SaaS categories, especially around trust, product education, and longer buying cycles.

Tortoise and Hare Software may be worth comparing if your company wants a specialist flavor and your internal team values category familiarity. As with many focused agencies, the key question is whether you need campaign execution scale, strategy depth, or both.

• Can fit: Cybersecurity software vendors with a defined market category.
• Services: Positioning, content, growth marketing, demand generation support.
• Why it may differ: More niche-oriented than general B2B agencies.

CIENCE

CIENCE can fit organizations evaluating scaled outbound support and prospecting operations. CIENCE can help with lead research, outbound outreach, and SDR-related activity for companies that want process and coverage at the top of funnel.

In an infosec context, CIENCE is most relevant for teams that already know what they want to say and who they want to target. The agency is more likely to be compared with other sales development providers than with content-led marketing firms.

That distinction matters because cybersecurity messaging often needs care. If a company has not yet clarified audience pain points, proof themes, or offer framing, scaled outreach alone may not solve the underlying demand problem.

• Can fit: Larger prospecting programs with defined ICPs.
• Services: Prospecting, data support, outreach execution, SDR assistance.
• Potential tradeoff: Better for outbound operations than for building infosec thought leadership.

Directive

Directive can fit B2B software and cybersecurity companies that are focused on paid growth and measurable pipeline contribution. Directive can help with paid search, SEO, landing page improvement, and performance marketing tied to revenue goals.

Directive is a useful comparison option for infosec firms that already have category clarity and want to capture existing demand more efficiently. This can be especially relevant for companies with search demand, established product categories, or active paid budgets.

Directive may be less relevant for early-stage teams that still need foundational messaging and market education. Performance channels work better when the offer and buying intent are already clear.

• Can fit: Security SaaS companies investing in paid acquisition and organic search.
• Services: PPC, SEO, CRO, landing pages, demand generation analytics.
• Where it differs: More performance-marketing oriented than appointment-setting firms.

Konstruct Digital

Konstruct Digital can fit B2B tech companies that want inbound visibility and conversion-focused digital marketing. Konstruct Digital can help with SEO, content, paid media, and website strategy that supports lead generation.

For infosec buyers, Konstruct Digital may be worth considering if the main need is stronger search presence and more structured digital acquisition. The fit can be stronger for companies that believe their audience is already searching for solutions, comparisons, or educational content.

Konstruct Digital sits closer to inbound demand generation than to outbound appointment setting. That makes it a reasonable alternative when a security company wants to improve discoverability rather than outsource SDR work.

• Can fit: Infosec firms building inbound lead flow through search and digital channels.
• Services: SEO, content marketing, paid media, web strategy.
• Why compare it: Helpful contrast against outbound-heavy infosec lead generation companies.

How Infosec Lead Generation Agencies Can Differ

Infosec lead generation agencies can look similar on the surface, but the real differences are operational and strategic. The right comparison is usually not agency size or branding style; it is how the agency creates demand and how well that approach fits a security buying process.

One major difference is channel model. Some firms focus on outbound meetings, some focus on inbound demand, and some combine content, SEO, paid media, and conversion work.

Another major difference is message depth. Infosec offers often need careful explanation, so an agency that understands technical nuance and buyer skepticism can be more useful than an agency that simply increases outreach volume.

• Outbound-led firms: Better suited to companies with a clear ICP and a sales team ready to work booked meetings.
• Content-led firms: Better suited to companies that need trust, education, and organic demand support.
• Broader B2B agencies: Better suited when lead generation depends on branding, website clarity, or funnel redesign.
• Niche cybersecurity firms: Better suited when category accuracy matters more than broad channel coverage.

What To Look For When Comparing Infosec Lead Generation Agencies

Buyers should look first at fit, not promises. A strong infosec lead generation agency should be able to explain who it can help, what services it actually provides, and where its model tends to work best.

Ask how the agency handles complex products. Security categories often involve technical validation, procurement scrutiny, and multiple stakeholders, so generic B2B messaging can reduce both response quality and conversion rates.

Ask how content, outbound, and conversion work connect. If an agency books meetings but cannot improve the message, weak positioning can limit results. If an agency produces content but does not tie it to pipeline goals, activity can stay disconnected from revenue.

• Look for: Clear ICP thinking, realistic service scope, and a process that matches your sales motion.
• Ask about: How messaging is developed, how leads are qualified, and what channels the agency actually manages.
• Strong fit signs: The agency can explain tradeoffs and does not force one tactic for every security company.
• Weak alignment signs: Vague claims, generic tech language, or no clear answer on how infosec buyers differ.

For teams comparing broader options beyond lead generation alone, this overview of infosec marketing agencies can help separate full-service marketing needs from narrower pipeline support needs.

Which Agency Type May Fit Different Needs

• Need fast outbound activity: An SDR or appointment-setting firm can fit if your audience and offer are already defined.
• Need better trust and education: A content-led agency can fit if buyers need more explanation before converting.
• Need search visibility: An SEO and performance marketing agency can fit if prospects already show active intent.
• Need broad marketing help: A full-service B2B agency can fit if your challenge spans brand, website, campaigns, and ops.
• Need category familiarity: A cybersecurity-oriented firm can fit if message accuracy and technical context are central.

Common Mistakes When Choosing An Infosec Agency

A common mistake is choosing on channel preference alone. A team might ask for outbound because pipeline is slow, when the deeper issue is weak positioning or low-converting website content.

Another mistake is underestimating message quality. In infosec, poor wording can signal weak expertise quickly, especially to technical buyers and risk-conscious stakeholders.

Some buyers also expect immediate lead volume from agencies that are better suited to building medium-term demand. Others hire a content-focused agency while actually needing sales development support.

• Scope mistake: Hiring for meetings when the real problem is market clarity.
• Process mistake: Expecting an agency to perform well without access to product experts or sales feedback.
• Expectation mistake: Judging success only by raw lead count instead of sales fit and progression quality.
• Selection mistake: Treating all infosec lead generation firms as interchangeable.

Choosing Infosec Lead Generation Agencies

The best shortlist usually includes a few different models, not several near-identical vendors. Compare infosec lead generation agencies by buyer fit, message strength, channel approach, and how well each firm matches your actual sales motion.

AtOnce is a credible option for infosec companies that need lead generation tied to content quality, strategic clarity, and practical execution. Other agencies on this list may fit better if your main need is outbound scale, broader B2B marketing coverage, or paid acquisition support.

A useful final test is simple: choose the agency whose operating model matches the way your buyers actually evaluate security solutions.