HubSpot Growth Agency for Startups & Scaleups

We are a HubSpot Diamond Solutions Partner, founded in 2013, with 70+ five-star reviews and more than $100M in client revenue generated.

We pull three growth levers for B2B SaaS startups and scaleups: lead gen websites that turn traffic into pipeline, HubSpot systems that turn buying signals into revenue, and Loop Marketing that scales output with AI.

We also build the products we run on, including Factor8 for agentic marketing and Sprocket Rocket for fast HubSpot sites.

AEO is Answer Engine Optimization: getting a brand recommended inside AI answers from ChatGPT, Gemini, Perplexity, and Google AI Overviews. It matters more than ever because search behavior has changed and AI is where buyers go first.

Lean Labs runs it as a system with four levers:

• Schema and structured data so models can read the brand.
• Answer hubs that publish expert answers to the exact questions buyers ask.
• Expert articles placed on authority sites so models cite the brand.
• Mention monitoring and reviews at scale so reputation holds up.

It starts with a baseline score that shows how often each engine mentions a brand today versus its competitors.

We specialize in working with B2B SaaS startups and scaleups that run on HubSpot, typically from Seed through Series C, with a real offer and a goal they can measure.

Recent results:

• 740% organic growth for Qualio
• 500% traffic increase for RocketSpace
• 355% more SQLs for Atlantech
• 300% more organic leads for Predictive Index

Lean Labs, however, is a poor fit for companies shopping for the cheapest vendor to deliver templated work, and we're honest with clients when that is the case.

Most agencies sell hours, while Loop Marketing with Lean Labs sells a system. We build a context engine that learns the business, points skilled agents at repetitive execution like drafts, schema, and reviews, and keep a human in the loop who scores every output.

We use a stoplight system, Green, Yellow, or Red before anything ships. Yellow or Red scores require a comment that notifies the team, so quality never drifts.

Clients get more output without scaling headcount, and the system gets sharper the longer it runs.

Pricing is per lever and public.

• AEO modules: $1,000 - $3,000/mo each, or a one-time $9,000 AI GTM setup with $199/mo starting in year two
• Websites: $5,000 HubSpot makeover to $15,000 - $25,000 for a full lead gen build
• HubSpot projects, migrations, and integrations: $1,000 - $5,000
• Loop Marketing programs and Growth-Driven Design: around $5,000/mo

Every option starts with a conversation, not a contract.

Lean Labs measures pipeline, conversion rate, organic growth, and revenue that can be attributed back to the work, not impressions or clicks unless they ladder up to a real outcome.

• Qualio grew organic traffic 740% on the way to raising $11M
• ConnectPay tripled organic search, grew blog page views 10x, and tripled new leads

Clients get clear reporting and a shared view of progress the whole way.

A new website or HubSpot fixes can produce gains within weeks. Organic initiatives like AEO, SEO, and content usually compound over three to six months.

What separates fast results from slow ones is velocity: we move from plan to live work in days, then learn and adjust each week as the data comes in.

No, and it should not. Lean Labs extends your in-house marketing team. Internal people stay focused on brand, product, and strategy while our system and specialists handle high-velocity execution and optimization.

For companies without a full marketing function or team, we can run as the primary growth engine with the same accountability expected in-house. Many clients use us as a fractional design, dev, and HubSpot team until they hire those roles.

AI handles the repeatable work so our people spend their time on judgment, strategy, and craft. Every output runs through a Green, Yellow, or Red review before it ships. Anything below Green gets a comment and a fix, so nothing generic reaches the audience.

The same system powers Factor8, our agentic marketing product, which is built so a human always reviews and scores the work.

Book a short conversation. Lean Labs will review the goal(s), share a baseline of where the brand stands, and recommend where to start, whether that is AEO, a website, or a HubSpot solution.

No commitment required, and no contract to begin.