Struggling with bad CRM data and low reply rates? We combine AI tools with manual data mining to deliver 98%+ accurate custom B2B lead lists. Turn your ideal customers into verified prospects for your sales outreach.
Marvel Technologies is a data services agency specialized in Prospect List Building, Lead Generation, Data Mining, Market Research, AI-Powered Lead Generation, Data Entry, Data Scraping, Company Research, Data Enrichment, List Building, and verified Email List Building.
We work with businesses across all industries worldwide to build custom prospect lists based on your target industry, job title, company size, and location.
Key Services:
Lead Generation
List Building
Prospect List
Contact List
Email List
Sales Lead List
CRM Cleanup
Data Mining
Data Cleaning
Data Enrichment
Data Collection
Data Processing
Market Research
Online Research
Company Research
Lead Research
Data Entry
Web Scraping
LinkedIn Sales Navigator
LinkedIn Lead Generation
Administrative Support
Key Deliverables
- Generated over 9.5 Million+ B2B Contacts and Emails through advanced Data Collection, AI-Assisted Data Enrichment, List Building, Data Processing, and Data Cleaning for quality and accuracy.
- Built, segmented, and maintained 12.5 Million+ business contacts and Prospect Lists with robust Contact Research, with validated and verified information, at a sustained 98%+ deliverability rate verified through ZeroBounce.
Our Comprehensive Services
- Lead Generation and B2B Lead Generation: Strategic development of highly segmented Prospect Lists, Data Extraction, and Sales Lead Lists for B2B Marketing, Sales, and Outbound Sales growth.
- Email Marketing and Email List: Achieving superior Email Communication and campaign success with high-accuracy verified Contact Lists, verified by Zerobounce, and following best practices in Email Marketing and Email List Verification.
- Data Cleaning and Data Processing: Maintaining CRM health & hygiene, we do rigorous Data Validation, Data Cleanup, and regular Data Enrichment to ensure every Contact List and Email List is updated. Use of Clay, Apollo, etc.
- Data Mining and Market Research: Leveraging Online Research, Company Research, Competitive Analysis, and insight-driven B2B Marketing to produce actionable Sales strategies.
- Lead Nurturing and Lead Enrichment: Support for Sales, B2B Sales, and Marketing with compelling Lead Nurturing solutions and Lead Generation Strategy to maximize lead conversion
- Administrative Support: Driving team efficiency and supporting business scaling with reliable Admin Support and Virtual Assistance.
- Data Entry and Data Scraping: Thorough manual and automated Web Scraping to populate Contact and Company data. Use of Apify, Phantombuster, Beautifulsoup, etc.
Industry-Specific Contact Lists
Benefit from custom, quality-verified lists for:
- CxOs, Startup Founders, E-Commerce Executives, Educators, Healthcare Leaders, Manufacturing Professionals, IT & Tech Specialists, Real Estate Contacts, Event Organizers, General Contractors, Plumbers, HVAC, and more
- Data and lists are segmented by job title, function, company size, sector, geography, and more, optimizing your outreach for B2B Sales, Marketing Strategy, and Research initiatives.
- All work incorporates LinkedIn Lead Generation and LinkedIn Sales Navigator for superior targeting, accuracy, and lead quality.
Why Choose Us?
- 15+ years in B2B Lead Generation, Data Entry, Data Enrichment, and List Building or List Builder with a history of delivering validated, accurate, and quality-driven contact databases.
- A skilled team of more than 20 professionals in Online Research, Market Research, Data Scraping, and Administrative Support, trusted by businesses for reliable Prospect Research and Prospect List development.
- Commitment to On-Time Delivery, verified data accuracy, and superior quality through regular Data Cleaning, verified List Building, and high-standard process adherence
- Comprehensive Lead Generation Strategies supported by CRM and B2B Marketing, ensuring every database is ready for Sales and Marketing use
- Advanced Web Crawling, Web Research, Internet Research, Email List Generation, and Virtual Assistance for continuous support to Sales and Marketing pipelines
Trust us for your Lead Generation, List Building, Data Enrichment, Data Entry, Data Scraping, Deep Research, Outbound Prospecting, Target Account List, AI-based Ideal Customer Profile (ICP) and Total Addressable Market (TAM) Research, Niche Contact Research, CRM Deduplication, HubSpot Data Management, Contact Segmentation, Sales Operations and Revenue Operations Support, Go-to-Market Support, GTM Research, Campaign List Preparation, Contact Discovery, B2B Contact Sourcing, Email Sourcing, Lead Qualification, MQL Support, SQL Support, Local Business Database, Data Deduplication, List Segmentation, Prospect Validation, Contact Verification, and all effective outreach and accuracy with your marketing goals.
Sai A.
Lead Generation | Contact Email List | Email Finding | Lead List
Ellore, India
$5/hr$5 per hour5.0 (306) 506 jobs $200K+ total earnings
Hello,
I'm Sai Aparna, ๐ ๐ฎ๐ฅ๐ฅ-๐ญ๐ข๐ฆ๐ ๐๐ง๐ ๐๐จ๐ฉ ๐๐๐ญ๐๐ ๐๐ซ๐๐๐ฅ๐๐ง๐๐๐ซ ๐จ๐ง ๐๐ฉ๐ฐ๐จ๐ซ๐ค. I specialize in Lead Generation, Contact Email List, List Building, Data Entry, Web Research and CRM Data Enrichment Services.
๐ ๐ ๐๐ถ๐ฒ๐น๐ฑ๐ ๐ผ๐ณ ๐๐ ๐ฝ๐ฒ๐ฟ๐๐ถ๐๐ฒ ๐ฎ๐ฟ๐ฒ๐
โ๏ธLead Generation
โ๏ธWeb Research
โ๏ธLinkedIn
โ๏ธB2B Contact List
โ๏ธB2B Email Generation
โ๏ธContact List Management
โ๏ธEmail List Building
โ๏ธEmail Finding
โ๏ธDatabase Building
โ๏ธEmail Sourcing
โ๏ธData Collection
โ๏ธAdmin Support
โ๏ธValid and Verified Emails
โ๏ธContact & Email List Building
โ๏ธCRM Contacts Cleaned up & Update
โ๏ธE-commerce Skills That Drive Success
โ๏ธReal Estate Research
โ๏ธData Extraction
โ๏ธEmail Handling
โ๏ธData Cleaning
โ๏ธData Entry
โ๏ธVirtual Assistance
โ๏ธB2B Marketing
โ๏ธDatabase Building in CRM ( Salesforce, HubSpot, Pipedrive, Notion )
I used some ๐๐ซ๐๐ฆ๐ฎ๐ข๐ฆ ๐ญ๐จ๐จ๐ฅ๐ฌ to find contacts, email addresses, and Direct Cell Numbers as well.
My primary goal is to exceed clients' expectations by delivering error-free Work on schedule. I have extensive Upwork experience. I can help you achieve your business goals quickly and efficiently. Contact me today to get started!
Just send me a message and I will be back to you within 5 Minutes!
Thanks for your valuable time.
Best regards,
Sai.
WordPress Plugin Developer and WooCommerce Developer with 12+ years of experience. Top Rated Plus, 100% Job Success, 150 jobs, and 12,110 hours on Upwork. I build custom plugins, WooCommerce features, PHP integrations, and repairs for existing sites.
My main work is the custom layer between standard WordPress features and the way a business operates. This may be a plugin that needs new behavior, a WooCommerce flow outside the default setup, a payment connection, an API integration, or an existing site that needs careful debugging.
WORDPRESS PLUGIN DEVELOPMENT
I can help with:
โข Custom WordPress plugin development
โข Existing WordPress plugin customization
โข Plugin extension, debugging, repair, and maintenance
โข PHP, MySQL, JavaScript, jQuery, CSS, and AJAX changes
โข Custom settings, data handling, and front-end behavior
โข WordPress API integration and REST API work
โข Theme and plugin conflict diagnosis
โข Ongoing support for established WordPress websites
I first map the requested behavior and inspect the current theme, plugins, PHP code, database, and connected services. For an existing plugin, I locate the relevant code path before changing it. For a new plugin, I separate the requirement into inputs, rules, permissions, outputs, and error cases.
WOOCOMMERCE DEVELOPMENT
I work on WooCommerce development and WooCommerce customization for stores that need more than a standard setup:
โข Cart and checkout customization
โข Product, order, and customer-account changes
โข Custom purchase rules and checkout fields
โข Payment gateway integration
โข WooCommerce plugin customization
โข API integration with external services
โข PHP and JavaScript bug fixing
โข WooCommerce speed and database review
โข Store maintenance and takeover support
My profile includes a completed PHP payment integration contract involving Visa, Mastercard, and PayPal. For payment work, I review how the site sends the request, records the response, handles a failed transaction, and updates the related WooCommerce order. The exact scope depends on the gateway and existing store.
For WooCommerce troubleshooting, I reproduce the issue and narrow it to checkout configuration, a theme override, plugin conflict, PHP, JavaScript, MySQL, or an external connection. I explain what is failing and which part should change before starting the fix.
LEARNDASH, API, AND LONG-TERM WORDPRESS WORK
A visible LearnDash WordPress contract on my profile ran for 1,321 hours, earned $20K+, and received 5-star feedback. My work history also includes an advanced WordPress and web application engagement that ran for 1,749 hours and earned $27K+.
For API integration, I work with WordPress, WooCommerce, PHP, and REST APIs, including request data, authentication, field mapping, responses, and error handling.
These long engagements support both defined features and ongoing WordPress development.
WORDPRESS RESCUE, BUG FIXING, AND PERFORMANCE
A rescue project may start with an error after an update, a broken page, a checkout problem, a slow admin area, or inherited code. I reproduce the fault, review recent changes, and isolate the responsible layer. That may involve WordPress, WooCommerce, PHP, MySQL, JavaScript, CSS, a theme, a plugin, or an API integration. I do not promise a fix before the source is known.
I also support WordPress speed optimization and database optimization. I review the measured bottleneck first, then recommend a change that matches the cause.
HOW I WORK
1. Review the requirement and current WordPress setup
2. Reproduce the issue or map the requested feature
3. Identify dependencies, edge cases, and acceptance checks
4. Confirm the work that belongs in scope
5. Build and test the affected user path
6. Share progress notes and document custom changes
I normally keep custom behavior in a plugin, child theme, or appropriate override instead of editing WordPress, WooCommerce, theme, or plugin core files. This reduces the chance of routine updates overwriting custom code, but compatibility still depends on the specific update and connected components.
Client feedback repeatedly identifies quality, reliability, collaboration, clear communication, and solution-oriented work. My listed response time is 0 to 4 hours. I am open to focused tasks, ongoing hourly work, and contract-to-hire opportunities.
SECONDARY WEBSITE SKILLS
My secondary capabilities include WordPress theme customization, Elementor, Divi, Figma to WordPress, Adobe XD handoff, and responsive layout work. These can support a plugin or store project, but they are not the main profile lane.
Invite me if you need a WordPress plugin built or changed, a WooCommerce feature, a payment or API connection, LearnDash support, or diagnosis of an existing WordPress problem. Send the current setup, desired behavior, and any error details you have. I will review the information and explain the next practical step.
Purnima C.
HR Admin support, Business Project Management, Data Processing
Delhi, India
$10/hr$10 per hour5.0 (13) 20 jobs $30K+ total earnings
* Strong knowledge of all phases of the Project management and Work Force Administration.
* Trouble shoot configuration issues
* Working on employees HR related issues with end client HR leadership.
* Working with project managers to ensure all deliverables are met on time and accurate.
* Gather requirements and prepare requirements definition documentation.
* Perform root-cause analysis on issues and document results.
* Perform validation testing of configuration set up
* Skillfully handling and managing Ongoing HR related requests, running reports and identification of errors/issues in the HRIS application.
* Peoplesoft, SuccessFactors, SQL, project management, SDLC, six sigma, lean, Taleo experience
* Proficient in MS Applications like excel and word.
* Highly proficient in documentation including business requirements and testing docs
* Green belt certificate
* Lean certificate
* Won yearly prize for outstanding business results.
* Won cash prize for working on project directly from the client.
* Best process improvement awards.
* Data entry work
* Project management
* Testing UAT
* Excellent email writing skills
* Customer support experience in both inbound and outbound centers
How it works
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โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
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โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
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