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Developer-to-Developer Support: API & SDK Troubleshooting

For high-complexity products, general helpdesks aren't enough. This curated directory features "Developer-to-Developer" (D2D) support firms. These agencies provide engineers who can troubleshoot API calls, review customer code snippets, and assist with SDK integrations in real-time. These specialized firms are vetted for their proficiency in 2026's most popular languages (TypeScript, Python, Rust) and their ability to write high-quality technical documentation that empowers your users' developers to build on your platform with zero friction.

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116 Companies Found
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ServerPlus provides customer and technical support outsourcing solutions, primarily targeting Internet Service Providers (ISPs), Managed Service Providers (MSPs), and BPOs. They offer a 24/7/365 team to handle everything from troubleshooting and billing to sales calls, MDU-B.. Read more about Server Plus services and insights

Services

Customer Support
Core Service
Technical Support
Core Service
Data Entry
Core Service
Back-Office Support
Core Service
Inbound & Outbound Call Center
Core Service
Email Support

Region

United States

Languages

English
Overall Ratings
3.4
24 Reviews
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Hi-Deas Expedient Solutions Limited is an IT company focused on delivering digital transformation solutions and breaking communication boundaries for businesses of all sizes. Their core services center on Call Center/Contact Center operations, offering custom setup options (.. Read more about Hi-Deas Expedient Solutions services and insights

Services

Inbound & Outbound Call Center
Core Service
Customer Support
Core Service
Technical Support
Core Service
Back-Office Support

Industries

Finance & Accounting
Insurance
Media

Region

Nigeria

Languages

English
Overall Ratings
5.0
2 Reviews
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Call2Customers is a comprehensive provider of Business Process Outsourcing (BPO) and Call Center Outsourcing services based in India, specializing in intelligent customer engagement and accelerated business growth. They offer 24/7 multilingual support across various industry.. Read more about Call 2 Customers services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Help Desk Support
Core Service
Email Support
Core Service
Live Chat Support
Core Service
Order Processing
Core Service
Back-Office Support
Data Entry
Lead Generation
Online Reputation

Industries

E-commerce

Region

India
United States

Languages

English
Multilingual
Overall Ratings
4.0
1330 Reviews
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Archers Contact Solutions is a New Jersey-based virtual assistant agency that provides reliable, office-based virtual assistants (VAs) and remote staff from the Philippines. The company was founded by a business coach and focuses on providing top-tier VAs to business owners.. Read more about Archers Contact Solutions services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Live Chat Support
Core Service
Email Support
Core Service
Technical Support
Core Service
Lead Generation
Core Service
Virtual Assistant
Core Service
Administrative Support
Email Inbox Management
Calendar Scheduling
Data Entry
Back-Office Support
Order Processing
Social Media Management
IT Help Desk

Industries

Real Estate
E-commerce
Media
Home Services
Hospitality

Region

United States
Philippines

Languages

English
Overall Ratings
5.0
1 Reviews
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FTalent is a leading outsourcing partner specializing in providing high-quality, scalable, and cost-effective customer service solutions and remote professionals from Mexico. The company leverages the advantages of nearshoring, such as a skilled, bilingual workforce, lower c.. Read more about FTalent services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Back-Office Support
Core Service
Virtual Assistant
Core Service
Email Support
Live Chat Support
Administrative Support
Data Entry
Business Operations
Lead Generation

Region

Mexico
Canada
United States

Languages

English
Overall Ratings
3.8
29 Reviews
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AmeeraTel is an IT-BPM and Business Process Outsourcing (BPO) provider with operations in the Philippines (Cebu), offering affordable dedicated remote teams starting at $5.00/hour to clients across multiple industries, including E-Commerce, Healthcare, and Legal. They delive.. Read more about Ameeratel services and insights

Services

Inbound & Outbound Call Center
Core Service
Customer Support
Core Service
Technical Support
Core Service
Virtual Assistant
Live Chat Support
Email Support
Back-Office Support
Data Entry

Industries

Healthcare
Finance & Accounting
Education
Insurance
Real Estate
E-commerce
Media

Region

Philippines

Languages

English
Overall Ratings
4.2
17 Reviews
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CallTelComm provides 24/7 outsourced contact center and telemarketing solutions, with a strong operational base offering expertise and multilingual support, including major Nigerian languages (Yoruba, Igbo, Hausa), to enhance customer care. Their core services are divided in.. Read more about CallTel services and insights

Services

Inbound & Outbound Call Center
Core Service
Help Desk Support
Core Service
Technical Support
Core Service
Multichannel Support
Core Service
Lead Generation
Email Support
Order Processing

Industries

Construction
Education
Finance & Accounting
Real Estate

Region

Nigeria

Languages

English
Overall Ratings
4.2
618 Reviews
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Staffwiz
4.8
location pin icon New York City, United States
StaffWiz is a women-owned remote staffing and recruitment platform helping startups and SMBs build high-performing global teams affordably. They specialize in sourcing top-tier talent, primarily from the Philippines. They offer two flexible models: Fully Managed (Employer of.. Read more about Staffwiz services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Back-Office Support
Core Service
Data Entry
Core Service
Technical Support
Core Service
Lead Generation
Core Service
Virtual Assistant
Administrative Support
Email Support
Live Chat Support
Business Operations
Software Development
IT Help Desk

Industries

Healthcare
E-commerce
Construction
Education

Region

United States
Philippines

Languages

English
Overall Ratings
4.8
3 Reviews
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Select VoiceCom is a leading Business Process Outsourcing (BPO) company specializing in call center excellence from the Philippines. They offer scalable, cost-effective, and highly compliant (HIPAA, PCI-DSS) inbound, outbound, and back-office services across numerous industr.. Read more about Select VoiceCom services and insights

Services

Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Back-Office Support
Core Service
Lead Generation
Core Service
Customer Support
Core Service
Email Support
Order Processing

Industries

Healthcare
E-commerce
Finance & Accounting
Hospitality
Real Estate

Region

Philippines

Languages

English
Overall Ratings
4.6
36 Reviews
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FGC+
5.0
location pin icon Suffern, United States
FGC+ is an end-to-end business process outsourcing (BPO) solutions provider that gives businesses access to skilled, fully managed teams to handle non-core functions and drive sustainable growth. They operate as a seamless, passionate extension of the client's brand, investi.. Read more about FGC+ services and insights

Services

Data Entry
Core Service
Back-Office Support
Core Service
Business Operations
Core Service
Technical Support
Core Service
Order Processing
Core Service
Help Desk Support
Live Chat Support
Email Support

Industries

Healthcare
Insurance
Real Estate
Hospitality
E-commerce

Region

United States
Philippines

Languages

English
Overall Ratings
5.0
38 Reviews
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Staffing Solutions Pro provides virtual assistant services specializing in three key areas: QuickBooks support for managing business finances, social media management for enhancing a brand's online presence, and web development for creating custom, responsive websites. The c.. Read more about Staffing Solutions Pro services and insights

Services

Customer Support
Core Service
Technical Support
Core Service
Social Media Management
Core Service
Lead Generation
Core Service
Virtual Assistant
Core Service
Administrative Support
Data Entry
Back-Office Support
Business Operations
Email Marketing
Content Marketing
Graphic Design

Industries

Real Estate
E-commerce
Media
Home Services
Hospitality

Region

United States
Philippines

Languages

English
Overall Ratings
5.0
11 Reviews
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Valoris is an international award-winning BPO and Call Center services provider in Romania, operating since 2006. They deliver comprehensive, multilingual, 24/7/365 solutions across B2C, B2B, and Corporate accounts, focusing on five pillars: Capacities, Development, Retentio.. Read more about valoris center services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Lead Generation
Core Service
Back-Office Support
Help Desk Support
Order Processing
Multichannel Support

Industries

Finance & Accounting
E-commerce
Healthcare
Hospitality

Region

Romania

Languages

Multilingual
Overall Ratings
3.3
192 Reviews
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Recruit Overseas is a global recruitment agency and offshore staffing solutions provider that helps companies source and hire talent for both local and remote international positions. They specialize in connecting employers with highly skilled, cost-effective professionals w.. Read more about Recruit Overseas services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Lead Generation
Core Service
Administrative Support
Data Entry
Business Operations

Industries

E-commerce
Real Estate
Insurance
Construction
Hospitality
Media

Region

United Kingdom
Philippines

Languages

English
Overall Ratings
5.0
61 Reviews
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Fusion CX is a global BPM (Business Process Management) company and Certified Minority Business Enterprise, offering complex, integrated, and multilingual Customer Experience (CX) solutions across 15 countries. They support 28 languages, combining advanced AI-powered technol.. Read more about Fusion CX services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Lead Generation
Core Service
Order Processing
Core Service
Back-Office Support
Core Service
Multichannel Support
Help Desk Support
Email Support
Live Chat Support

Industries

Healthcare
Finance & Accounting
Insurance
E-commerce
Hospitality

Region

United States

Languages

Multilingual
Overall Ratings
3.8
24 Reviews
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Help Squad
4.0
location pin icon Bethlehem, United States
HelpSquad is a 24/7 omnichannel BPO (Business Process Outsourcing) company specializing in customer support and back-office functions. They offer affordable, reliable services starting at $8/hour, focusing on seamless team integration and superior customer experience. The co.. Read more about Help Squad services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Live Chat Support
Core Service
Technical Support
Core Service
Help Desk Support
Core Service
Back-Office Support
Core Service
Email Support
Order Processing
Multichannel Support
Virtual Assistant

Industries

Healthcare
E-commerce
Real Estate
Finance & Accounting
Education
Hospitality

Region

United States

Languages

English
Overall Ratings
4.0
1 Reviews
Expand Details
E-Flexervices is a seasoned Business Process Outsourcing (BPO) company with over 23 years of experience, specializing in building tailored, high-performance offshore teams primarily from the Philippines. They operate on a partnership approach to match expert talent in areas.. Read more about E-Flexervices services and insights

Services

Customer Support
Core Service
Technical Support
Core Service
Live Chat Support
Core Service
Email Support
Core Service
Inbound & Outbound Call Center
Core Service
Virtual Assistant
Administrative Support
Back-Office Support
Data Entry
Lead Generation
Web Development
IT Help Desk
Software Development

Region

Philippines

Languages

English
Overall Ratings
4.7
6 Reviews
Expand Details
iFIVE Global offers premier offshore staffing solutions to help businesses combat high turnover and surging labor costs, promising up to 70% savings. Headquartered in California with offices in Metro Manila, Philippines, they specialize in industry-specific teams (Medical, L.. Read more about iFIVE Global services and insights

Services

Inbound & Outbound Call Center
Core Service
Technical Support
Core Service
Back-Office Support
Core Service
Customer Support
Core Service
Virtual Assistant
Core Service
Data Entry
Core Service
Administrative Support
IT Help Desk
Lead Generation

Industries

Healthcare
Legal
Finance & Accounting

Region

United States
Philippines

Languages

English
Overall Ratings
3.9
29 Reviews
Expand Details
Call Center Solutions Africa acts as an independent advisory and consulting partner, specializing in connecting businesses with high-quality BPO and Contact Center service providers across the African continent. They simplify the often-complex vendor selection process by vet.. Read more about Call Center Solutions Africa services and insights

Services

Inbound & Outbound Call Center
Core Service
Multichannel Support
Core Service
Technical Support
Core Service
Back-Office Support
Core Service
Lead Generation
Data Entry
Business Operations

Industries

Healthcare
Insurance
Hospitality
E-commerce

Region

Kenya

Languages

English
Multilingual
Overall Ratings
4.4
45 Reviews
Expand Details
Flatworld Solutions (FWS) is a global BPO, BPA, and AI solutions company with over 19 years of experience, committed to operational transformation. They are an ISO certified, multilingual service provider known for deploying native-speaking agents to ensure cultural fluency.. Read more about Flatworld Solutions services and insights

Services

Customer Support
Core Service
Inbound & Outbound Call Center
Core Service
Back-Office Support
Core Service
Data Entry
Core Service
Software Development
Core Service
Technical Support
Help Desk Support
Email Support
Live Chat Support
Web Development
Cloud Computing
IT Consulting

Industries

Healthcare
Finance & Accounting
Insurance
Real Estate
E-commerce

Region

India

Languages

Multilingual
English
Overall Ratings
4.4
31 Reviews
Expand Details
SWITCH 360 empowers short-term rental hosts, property managers, and customer-focused businesses with highly trained, cost-effective virtual assistants. Specialized in Property Management Back-Office and Customer Support Outsourcing, their VAs handle everything from guest com.. Read more about SWITCH 360 services and insights

Services

Virtual Assistant
Core Service
Customer Support
Core Service
Live Chat Support
Core Service
Email Support
Core Service
Inbound & Outbound Call Center
Core Service
Lead Generation
Core Service
Administrative Support
Calendar Scheduling
Business Operations
Back-Office Support
Technical Support

Industries

Real Estate
E-commerce
Hospitality

Region

Pakistan
United States

Languages

English
Overall Ratings
4.3
4 Reviews
Expand Details
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Frequently Asked Questions

Plus
What is "Adversarial Support" in Technical Support?
It is a 2026 security practice where Technical Support agents verify that a support request isn't actually a "social engineering" attack to gain access to accounts.
Plus
Can Technical Support assist with software updates?
Yes; Technical Support teams manage the rollout of patches and version updates, ensuring that your users transition smoothly to new features.
Plus
How are Technical Support agents trained?
Agents undergo rigorous certification on your specific product stack and use "Lab Environments" to practice resolving complex Technical Support scenarios.
Plus
Does Technical Support provide 24/7 monitoring?
Many Technical Support plans include "Active Monitoring," where agents receive alerts and fix server issues before the customer even notices a problem.
Plus
How do you measure Technical Support efficiency?
The gold standard for Technical Support is First-Contact Resolution (FCR) and Mean Time to Recovery (MTTR) for system outages.
Plus
Can Technical Support manage API troubleshooting?
Yes; many Technical Support firms in this directory specialize in "Developer Support," helping clients debug API integrations and webhooks.
Plus
What is Tier 3 Technical Support?
Tier 3 involves senior engineers who handle deep-level code issues and infrastructure failures that general Technical Support agents cannot resolve.
Plus
How is knowledge shared in Technical Support?
Specialists in Technical Support maintain a "living" internal wiki, documenting every new bug and resolution to ensure the entire team stays updated.
Plus
Does Technical Support include remote desktop access?
Yes; with user permission, Technical Support agents use secure tools to remotely access a device and fix configuration errors without the user needing to take action.
Plus
What is the primary role of Technical Support?
Technical Support is responsible for diagnosing and resolving hardware, software, and connectivity issues through expert troubleshooting and specialized product knowledge.
Plus
Can a Technical Support Experts provider scale as your business grows?
A scalable Technical Support Experts provider should be able to quickly add trained staff, expand service coverage, and adjust workflows as your company’s workload or operational needs grow.
Plus
What security practices should a professional Technical Support Experts agency follow?
A professional Technical Support Experts agency should implement NDAs, secure system access, role-based permissions, and data protection policies to safeguard sensitive business information.
Plus
How do agencies ensure quality and accuracy in Technical Support Experts?
Reliable Technical Support Experts agencies typically use documented workflows, supervisor reviews, and performance metrics to maintain accuracy and consistent service quality.
Plus
What questions should you ask before hiring a Technical Support Experts company?
Before hiring a Technical Support Experts company, ask about onboarding steps, service-level agreements, quality control processes, and how performance will be tracked and reported.
Plus
How do you choose the best Technical Support Experts provider for your business?
To choose the best Technical Support Experts provider, compare communication processes, reporting frequency, tool compatibility, and the agency’s ability to understand your operational requirements.
Plus
What should you look for when hiring a Technical Support Experts agency?
When hiring a Technical Support Experts agency, review their industry experience, ask for case studies, and confirm they have successfully managed similar workflows for other businesses.