Data Extraction, Data Mining & B2B Lead Generation Specialist
Top Rated Plus · 100% Job Success on Upwork · Based in Rangamati, Bangladesh
I help B2B and B2C teams build clean, targeted data pipelines that actually convert — from lead lists to investor research and CRM cleanup.
About Sumedh C.
I'm a Data Extraction, Data Mining & B2B Lead Generation specialist based in Rangamati, Bangladesh, helping clients with B2B/B2C lead generation, email list building and extraction, CRM data management, data mining and web research, data scraping, data enrichment, and spreadsheet/CRM data entry support.
With a proven track record on Upwork and deep expertise in data operations, I partner with SaaS companies, agencies, and B2B organizations to build clean, reliable data pipelines that drive growth.
Key Achievements
- ✓ Upwork Top Rated Plus with 100% job success rate
- ✓ 10,000+ leads sourced and validated across multiple industries
- ✓ Expert in Clay, Crunchbase, Apollo, and advanced data automation
- ✓ Specialized in B2B/B2C lead generation, CRM cleanup, and data enrichment
Quick Stats
Services
Comprehensive data solutions tailored to your B2B and B2C needs
B2B/B2C Lead Generation
Build targeted lead lists from multiple data sources using Clay, Crunchbase, Apollo, and custom research.
Typical Deliverables:
- • Qualified lead lists with decision-makers
- • Company research and firmographic data
- • Email validation and enrichment
Email List Building & Extraction
Extract and build permission-based email lists from websites, directories, and data platforms with guaranteed deliverability.
Typical Deliverables:
- • Extracted email lists with validation
- • List segmentation and tagging
- • Compliance and deliverability audit
CRM Data Management
Clean, deduplicate, segment, and manage your CRM data across HubSpot, Zoho, Monday.com, and other platforms.
Typical Deliverables:
- • Data cleanup and deduplication
- • Segmentation and tagging
- • CRM optimization and workflow setup
Data Mining & Web Research
Deep dive research on companies, investors, and market trends using Crunchbase, LinkedIn, industry databases, and custom research.
Typical Deliverables:
- • Investor and fundraising research
- • Competitive intelligence reports
- • Industry and market analysis
Data Scraping & Automation
Automated data extraction using Octoparse, Scrapy, APIs, and custom workflows for recurring data collection needs.
Typical Deliverables:
- • Automated scraping workflows
- • API integrations and data syncing
- • Recurring automated data updates
Data Enrichment & Validation
Enrich your existing data with missing information, validate accuracy, and standardize formats across your database.
Typical Deliverables:
- • Email and phone validation
- • Data standardization and formatting
- • Missing field enrichment
Spreadsheet & CRM Data Entry
Accurate, fast data entry into spreadsheets or CRMs with proper formatting, validation, and quality control.
Typical Deliverables:
- • High-volume data entry with accuracy
- • Google Sheets/Excel management
- • CRM data import and organization
Tools & Stack
Specialized tools and platforms I use to deliver precise, scalable data solutions
Prospecting & Data Platforms
Advanced platforms for sourcing, researching, and validating B2B lead data
CRM & Marketing
Platforms for managing customer data, campaigns, and communication workflows
Productivity & Workspace
Collaboration and data management tools for seamless workflow
Data Scraping & Automation
Tools for extracting and automating data collection workflows
AI & Advanced Workflows
AI-powered tools for research, content generation, and intelligent automation
Core Competencies
Data Operations: Lead generation, data mining, extraction, enrichment, validation, and CRM management across multiple platforms.
Research & Analysis: Deep-dive research on companies, investors, industries, and market trends using multiple data sources.
Automation & Integration: Workflow automation, API integrations, and custom data pipelines to reduce manual work.
Quality Assurance: Data validation, accuracy checks, and compliance verification to ensure deliverable quality.
Portfolio & Case Studies
Real results from B2B and B2C clients across multiple industries
SaaS Lead Generation Campaign
Client Type:
B2B SaaS Company (Sales Automation)
Problem
Client needed a high-quality, targeted list of decision-makers in mid-market companies across specific industries to launch a new product launch campaign. Existing data was outdated and incomplete.
Solution & Outcome
Process: Multi-source lead mining using Clay, Crunchbase, and Apollo with manual enrichment.
Result: Delivered 5,000+ validated B2B leads with verified emails and phone numbers.
Impact: Campaign achieved 8.5% response rate (vs. industry avg 2%) and led to 340+ qualified opportunities.
CRM Data Cleanup & Segmentation
Client Type:
HubSpot Using Digital Agency
Problem
Client had 50,000+ contacts in HubSpot with significant data quality issues: duplicates, incomplete fields, mismatched data, and poor segmentation preventing effective campaign execution.
Solution & Outcome
Process: Comprehensive audit, deduplication, field standardization, and smart segmentation in HubSpot.
Result: Cleaned and merged 12,000+ duplicate records, restored 8,000+ incomplete profiles.
Impact: Email delivery improved 34%, campaign performance metrics increased 42%.
Investor Research & Database
Client Type:
Venture-Backed Startup
Problem
Client was preparing Series A fundraising and needed comprehensive research on relevant VCs, angel investors, and industry-specific funds matching their profile and thesis.
Solution & Outcome
Process: Multi-source research via Crunchbase, LinkedIn, PitchBook, and industry databases with deep company analysis.
Result: Identified and profiled 300+ relevant investors with personalized investment criteria.
Impact: 65+ warm introductions, 20+ pitch meetings, successful Series A funding close.
Automated Lead Gen & Enrichment Pipeline
Client Type:
Marketing Consulting Firm
Problem
Client needed recurring, weekly lead generation at scale with automated data enrichment and direct CRM updates to maintain a pipeline without manual intervention.
Solution & Outcome
Process: Built automated Clay workflow with Zapier integration directly into HubSpot, including data validation and enrichment.
Result: 1,500+ new qualified leads per week, fully automated with zero manual touch.
Impact: 60+ hours/month saved, consistent pipeline growth, 5.2% conversion rate on automated leads.
Interested in working on your data project? I'd love to discuss your specific needs and challenges.
Request Full Portfolio & PricingClient Testimonials
What clients say about working with me
"Sumedh delivered exactly what we needed. Our lead generation campaign went from underperforming to delivering consistent, quality leads. His attention to data quality and delivery timeline was exceptional."
Sarah Chen
VP Sales, TechFlow SaaS
"The CRM cleanup Sumedh performed saved us an enormous amount of time and money. Our data is now clean, organized, and actionable. I'd hire him again in a heartbeat for any data project."
James Rodriguez
Founder, Digital Growth Agency
"Working with Sumedh on our Series A investor research was a game-changer. The quality and depth of research, combined with the organized database, made our fundraising process so much more efficient and professional."
Michael Park
CEO, NextGen Ventures
"We've worked with Sumedh on multiple projects—lead generation, email list building, and CRM management. His consistency, reliability, and technical expertise make him an invaluable partner. Highly recommended."
Emma Thompson
Head of Marketing, Enterprise Solutions Inc.
Top Rated Plus on Upwork with
100% job success rate backed by countless successful projects and satisfied clients
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