The 50+ Tools Behind Our $6.5M ARR Agency

We've tested over 1,300 tools while scaling ColdIQ to $6.5M ARR.

The challenge is knowing which ones match your actual needs and priorities.

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Every platform promises to solve your problems. They solve problems, just not necessarily the ones you have. And by the time you realize it's not the right fit, you've wasted time on setup and onboarding and thousands of dollars on tools that lock you into yearly contracts.

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This is our stack of 50+ tools that powers our content (250K+ LinkedIn followers), outbound (70+ clients), and internal operations (30+ team members).

We’ll also go over the stack for our inbound motion, generating 120+ qualified meetings monthly, and our best picks for sales ($550k/month).

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We're a $6.5M ARR agency serving 70+ B2B clients, and it’s fair to say our stack has gotten... extensive.

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So here's the honest breakdown of every tool we use, organized by EXACTLY how we use them, and how they sync together into a revenue-generating system.

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1. 200+ Leads Per Month From Organic Content

LinkedIn drives us 200+ leads every month. Between my account (+63k followers) and the rest of the team (+250k combined), we're putting out a lot of content.

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For LinkedIn, we use Taplio and Scripe for content ideas and inspiration. They give us access to millions of viral posts to analyze what's working, while also helping with AI-powered content generation.

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We use Notion to keep our content calendar organized with the different steps before posting, from generating ideas all the way to the design that comes with the post.

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For YouTube (almost at 2K subs), we record on a Sony FX30 for professional video quality, use Tella for screen and audio recording with automatic editing features, and let vidIQ show outlier videos in our space to identify content gaps and trending topics.

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For SEO, we're driving ~100K visitors quarterly.

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One-third comes from search and LLMs. We host on Webflow for its visual builder and fast load times, research with Ahrefs for keyword data and backlink analysis, and use AirOps for AI search optimization and building programmatic pages at scale.

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It specifically helps us understand how our content appears in LLMs.

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For email marketing, we have ~10K subscribers with 40%+ open rates (we clean aggressively). beehiiv handles our 3-5 weekly emails with built-in analytics, subscriber segmentation, and monetization features.

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2. Running GTM for 70+ B2B Companies

We deliver outbound and GTM for 70+ clients. Because we provide services to a lot of companies that are either already using AI tools or that have different requirements, our outbound stack is the most extensive one.

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Data & Enrichment

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Clay is our data operations center where we build custom workflows, combine multiple data sources, run AI enrichment, and handle complex data operations that standard platforms can't manage.

FullEnrich runs waterfall enrichment, checking multiple providers sequentially until it finds valid contact data, either valid phone numbers or email addresses.

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For email and phone discovery, we use Prospeo, Wiza, and LeadMagic for bulk email finding with high accuracy, maximizing our coverage for real-time email verification and mobile number lookups.

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If you need to find someone's email urgently, having the right tool makes all the difference. Our email finder checks multiple databases and validates deliverability in real-time.

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You can find anyone's email in seconds using our email finder tool:

Email Finder Tool

Mobile numbers are trickier to source than emails, but they're incredibly valuable for high-value outreach. We built a dedicated finder that checks multiple providers.

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You can target your top prospect and find their mobile phone number using our mobile finder tool:

Phone Finder Tool

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Exa uses AI-powered web search to discover companies in niche markets based on real activity signals, and Openmart is where we go for local business data, especially SMB and mid-market segments.

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For people data and large databases, Apollo and LinkedIn Sales Navigator are our main sources to pull contacts, job titles, and company information at scale.

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And to expand lists, DiscoLike is perfect for finding lookalike companies and new players that do not show up elsewhere.

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Sometimes you need to find specific people at a company by role, seniority, or department. Instead of manually searching LinkedIn, you can instantly surface the right contacts based on criteria you can choose yourself.

If you need to find a specific person at a company that you’re targeting, you can do so instantly using our People Finder Tool:

People Finder Tool

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One of the most effective strategies is targeting companies similar to your best customers. Your existing customers are the best indicator of who your service or product benefits the most.

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You can find them in seconds using our Lookalike Company Finder here:

Lookalike Finder Tool

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For intent data, we use Clay as a data orchestration platform, given that it integrates with 100+ tools, giving us insights about signals like funding events, new technology adoption, hiring trends, website traffic spikes, and much more.

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Common Room tracks key buying signals like job changes and website visits, helping you reach out at exactly the right moment.

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Midbound tracks product-led and website behavior signals. If someone from an ICP account visits pricing or activation pages, signs up, or interacts repeatedly with content, we get notified for a warm touch.

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Trigify alerts us when people change jobs, get promoted, or new decision makers join a company. This is a perfect trigger to reach out during transition windows when buying decisions are more flexible.

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Teamfluence aggregates LinkedIn engagement. We use it to see who interacts with company profiles or specific posts, helping us identify warm leads engaging with content.

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Understanding when prospects are actively researching solutions gives you perfect timing for outreach, and you can track intent signals for free to approach your target company with relevance here:

Intent Signal Finder Tool

Knowing what technology a company uses helps you personalize outreach and identify replacement opportunities.

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If they're using a competitor, you know exactly how to position your message, whether it’ll be about the time & money you’ll save them, or premium support.

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Find out what tech stack any company runs on:

Tech Stack Finder Tool

Sending Platforms

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lemlist handles multichannel sequences combining email, LinkedIn, and phone in unified campaigns with conditional logic and AI personalization.

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Instantly is our go-to for pure email plays at scale, with unlimited sender accounts, deliverability optimization, and campaign analytics.

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These tools are the best in the game when it comes to deliverability, but the way you write your email can increase the likelihood of it landing in spam.

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Before you start your email campaign, check that your emails won't land in spam here:

Spam Checker Tool

Expandi manages LinkedIn-only outreach with safe automation that mimics human behavior to avoid account restrictions.

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Paid Ads

We spend ~€30K monthly across LinkedIn, Meta, Google, and YouTube.

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Clay builds our ABM lists with firmographic filtering and contact enrichment. Usermaven tracks attribution across the entire journey from ad click to closed deal, while Fibbler monitors which target accounts are engaging with our ads, even before they convert.

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3. The Operations Stack Running a 30-Person Team

Our team includes 30+ FTEs and roughly 10 fractional freelancers. With this many people, keeping everything organized and well-documented is essential.

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We use Notion as our project management and documentation hub where we store SOPs, client documentation, and roadmaps.

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Supabase powers our internal database infrastructure with Postgres, real-time subscriptions, and built-in authentication for custom internal tools, while Airtable is our operational source of truth for client tracking, project status, and deliverable management with relational databases and custom views.

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Google Meet handles video conferencing for client calls and internal meetings. Slack manages real-time team communication, and Loom enables async video explanations and training.

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For AI, we use the latest models of Gemini, OpenAI, and Claude. We use OpenRouter to access multiple LLMs from a single interface.

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4. Our Inbound Conversion Engine

The real challenge is converting those high-intent prospects into qualified meetings, and these are the tools powering that motion.

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Google Analytics and Usermaven track traffic sources, user behavior, conversion paths, and attribute revenue to specific channels.

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Webflow hosts our website with a visual builder and fast CDN. Wistia hosts video content with detailed engagement analytics showing exactly who watched and for how long.

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Default captures leads and automatically enriches them with firmographic data, intent signals, and contact information the moment they convert.

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Customer.io re-engages prospects who showed interest but didn't book, using behavioral triggers and personalized sequences.

We're building more free tools as lead magnets. Vercel hosts them with edge functions and instant deployment. Lovable helps us prototype new tools rapidly with AI-assisted development.

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5. Sales: $832K New ARR in November

We closed over $832K in new ARR in November, plus $60K for our educational program.

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Attio is our CRM with a flexible data model that adapts to our sales process.

Qwilr creates interactive proposals with embedded pricing calculators, videos, and e-signatures that stand out from standard PDFs.

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Attention and Fireflies record sales meetings, transcribe conversations, automatically extract action items, and surface deal-specific insights that sync to our CRM, Attio.

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Ramp manages corporate cards and expense tracking with automated categorization and built-in spend controls. Stripe handles subscription billing and payment processing.

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Mercury and Revolut serve as our business banking accounts with multi-currency support and modern financial infrastructure.

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6. The GTM Flywheel for 2026

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These tools only work when they're integrated into a unified system.

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We call it the GTM Flywheel. It's the exact framework we used with AirOps to generate $7.83M in qualified pipeline and $1.52M in closed-won revenue in just 10 months.

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We sync content, ABM, and outbound into one cohesive motion where each channel amplifies the others:

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Content builds awareness and credibility. LinkedIn posts and thought leadership reached senior buyers at target accounts, establishing trust before any sales conversation.

Ads target high-intent accounts. We used LinkedIn Thought Leader Ads (80% of spend) to reach expensive audiences, then retargeted engaged accounts with customer proof and bottom-of-funnel campaigns.

Outbound activates the same accounts. We sent personalized sequences to decision-makers at accounts already engaging with the content and ads.

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This resulted in: 164 deals created, 30 closed-won, and a 15x pipeline ROI on ads.

See the full case study here.

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We built a free tool that analyzes your GTM motion and provides tailored strategies for every channel you need: what to do with ads, approaching content, and running outbound.

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Get a custom GTM analysis for your company:

GTM Report Tool

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Conclusion

We've covered our complete tech stack across content, GTM delivery, operations, inbound, and sales. After testing 1,300+ tools in all kinds of categories, these are the ones that we are currently using as an agency.

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Running an agency means juggling multiple areas, each with its own set of challenges and requirements. The GTM tech landscape evolves constantly, with new tools launching every week and existing ones adding features that change the game. Staying current with what's best on the market will be key to stay competitive.

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What about you? Which tools have become non-negotiable in your business?

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