Building Cleon1's B2B Lead Enrichment Platform, Chrome Extension, AI Outreach & Scraper Infrastructure
“Parallel Loop built our entire go-to-market stack, landing page, lead dashboard, LinkedIn extension, and the scraper fleet behind verified contacts. Sales teams get emails and phones in seconds, and our AI outreach plus HubSpot sync actually ships.”
Cleon1 is a B2B contact intelligence platform in the same category as ContactOut, built for sales teams who need verified emails, phone numbers, and role data without leaving their prospecting workflow. Like ContactOut, Cleon1 combines a browser extension that enriches contacts while you browse with a web dashboard to search and filter leads at scale. Reps uncover work emails and direct dials on LinkedIn profiles or company sites in seconds, then build targeted lists by industry, title, and company for outbound campaigns.
The Product Challenge
Parallel Loop partnered with Cleon1 to engineer a full-stack sales intelligence product from the ground up. The business needed more than a contact database, it required a marketing landing page, a production-grade lead search dashboard, a Chrome extension that works on LinkedIn and arbitrary websites, a high-volume scraping layer to keep data fresh, AI-assisted email composition with automated follow-up workflows, CRM integrations, and an admin control plane to manage users and API token consumption. Competing products like ContactOut win on speed, data accuracy, and workflow integration; Cleon1 needed parity on enrichment speed plus differentiated AI outreach and transparent token-based billing via Stripe.
- Copy-Paste Contact Research on LinkedIn
- No Verified Email or Phone in Context
- Generic Mail Merge Without AI Personalization
- CRM Updates Done Manually in HubSpot
- No Central Token or User Governance
- Next.js Landing + React Lead Dashboard
- Chrome Extension, LinkedIn & Any Website
- Puppeteer Scrapers + Residential Proxies
- AI Email Drafts & Response Workflows (OpenAI)
- HubSpot CRM Sync + Admin Token Dashboard
Phase 1: Chrome Extension, Landing Page & Lead Dashboard
We shipped a Chrome extension that surfaces contact intelligence wherever reps already work. On LinkedIn profiles or any company website, the extension returns email, phone, current role, profile summary, and decision-maker signals, mirroring the ContactOut-style overlay experience sales teams expect. Users add contacts to lists, copy details, or export without switching tabs.
The web dashboard lets teams search leads by industry with company filters and rich profile metadata. Reps see professional emails, direct phone numbers, current job titles, and firmographic context in one searchable interface. Our full-stack custom software engineering pod built the Next.js marketing landing page (SEO-optimized, conversion-focused) and the React.js operations dashboard on Node.js, Express.js, PostgreSQL for relational lead data, and MongoDB for enrichment payloads and session state, with Agenda Jobs scheduling sync and verification tasks in the background.
Phase 2: Scraper Fleet, AI Email Workflows & Admin Platform
We developed many dedicated Puppeteer scrapers routed through residential proxies to sustain high-volume, low-block-rate data collection. Each scraper targets specific sources and page structures; proxy rotation and queue orchestration keep enrichment pipelines resilient when target sites throttle datacenter IPs. Extracted data flows through normalization and verification stages before appearing in the extension or dashboard.
From the dashboard, users send personalized emails powered by AI and automate follow-up workflows. Our AI engineer integrated OpenAI and Hugging Face to draft context-aware outreach from lead profile data, with workflow rules for email responses and sequencing. Teams connect third-party CRMs such as HubSpot so enriched contacts and campaign activity sync bi-directionally. Stripe API handles subscriptions and usage-based token billing.
We also built an admin dashboard where platform operators manage users and monitor token consumption. Admins audit per-account usage, enforce limits, and support customers without touching production databases manually. Infrastructure runs on AWS EC2 with the same operational rigor we apply to custom AI workflow automation engagements.
- Chrome extension: LinkedIn + general websites, email, phone, role, about, decision makers.
- Lead dashboard: Industry search, company filters, in-app email send, list export.
- Scraper infrastructure: Puppeteer fleet with residential proxies for scale and uptime.
- AI + CRM: Personalized email generation, response workflows, HubSpot integration.
- Admin panel: User management and token visibility for platform operators.
Quantified Business Outcomes
Cleon1 launched as an end-to-end B2B prospecting platform, extension, dashboard, scrapers, AI outreach, and admin ops in one cohesive product.
| Performance Metric | Manual Prospecting | Cleon1 Platform (Parallel Loop) |
| Contact Discovery | Manual LinkedIn / Google Research | Instant Extension + Dashboard Search |
| Data Surfaces | Fragmented Tabs & Spreadsheets | Email, Phone, Role & Decision Makers in One UI |
| Outbound Email | Static Templates | AI-Personalized Sends & Automated Workflows |
| CRM & Billing | Manual HubSpot Entry | HubSpot Integration + Stripe Token Billing |
Technical Deep-Dive: Frequently Asked Questions
How does Cleon1 compare to ContactOut for sales teams?
ContactOut popularized in-browser contact reveal on LinkedIn plus a searchable B2B database. Cleon1 follows the same core model, verified emails and phones, profile enrichment on LinkedIn and websites, and list building from a dashboard, while adding AI-generated outreach, native email workflows, HubSpot sync, and token-based admin controls built specifically for Cleon1's pricing and operations model.
Why use Puppeteer with residential proxies instead of only third-party data APIs?
Owning scraper infrastructure gives Cleon1 control over freshness, field coverage, and cost at scale. Residential proxies reduce ban rates versus datacenter IPs; Puppeteer handles dynamic pages that pure HTTP clients cannot parse. Multiple specialized scrapers let the team add sources incrementally without re-architecting the whole pipeline.
How are API tokens tracked for each customer?
Every enrichment, extension lookup, and AI email generation decrements a metered token balance stored in PostgreSQL. The admin dashboard aggregates usage per user so operators can spot abuse, upgrade accounts, or debug high-consumption tenants, paired with Stripe for paid plan enforcement.
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