Leading Programmatic Advertising Technology

Algorithm-Driven Growth.
Redefining Ad Efficiency.

Longsen combines machine learning and real-time bidding to help brands precisely reach their target audiences — maximizing conversions while minimizing media spend.

300+
Brand Clients Served
45%
Average Cost Reduction
3.2x
Conversion Rate Uplift
10B+
Daily Bid Requests
Real-Time Bidding· Data Management Platform· AI-Powered Bidding· Audience Targeting· Cross-Channel Integration· Attribution Modeling· Brand Safety· Anti-Fraud Engine· Real-Time Bidding· Data Management Platform· AI-Powered Bidding· Audience Targeting· Cross-Channel Integration· Attribution Modeling· Brand Safety· Anti-Fraud Engine·

Why Longsen

Our technology stack spans the entire programmatic supply chain — from data ingestion to performance optimization, every layer engineered for precision.

Millisecond RTB Engine

Our proprietary real-time bidding engine delivers sub-50ms response times, processing over 10 billion bid requests daily — ensuring we win the right impressions at the right price, every time.

RTB Engine

AI Bid Optimization

Deep learning bid models analyze real-time user behavior signals, dynamically adjusting bidding strategy to maximize ROI from every dollar of media spend.

AI Bidding

Global Inventory Access

Direct integrations with the world's leading SSPs, Ad Exchanges, and premium publishers — delivering unmatched inventory breadth across desktop, mobile, CTV, and DOOH.

Global DSP

Multi-Touch Attribution

Support for MTA, data-driven, and last-touch attribution models — giving you an accurate view of each touchpoint's contribution to conversion and informing smarter budget allocation.

Attribution

Precision Audience Targeting

Combine first-party, second-party, and third-party data to build granular audience segments — enabling cross-device, cross-channel targeting that reaches the right people at scale.

DMP

Built for Every Objective

Whether you're building a brand or driving direct response, we tailor programmatic strategies to your specific business goals.

01

Brand Advertising

Drive awareness and affinity at scale through precision audience targeting and premium inventory. Build lasting brand equity while measuring real-world impact.

  • Programmatic Guaranteed (PG/PD)
  • Brand-safe environment targeting
  • Video and native ad formats
02

Performance Advertising

Optimize toward CPA, CPC, or ROAS goals with intelligent algorithms that continuously improve bidding and creative decisions — delivering lower costs and higher-quality conversions.

  • Fully automated bid strategy optimization
  • Dynamic Creative Optimization (DCO)
  • Retargeting and lookalike expansion
03

Cross-Channel Integration

Break down data silos across Display, Video, Native, and CTV. Unify your audience journey management and amplify the synergistic effects of a coordinated media strategy.

  • Unified audience management
  • Cross-channel frequency capping
  • Full-funnel attribution reporting

Numbers That Reflect Real Business Growth

45%
Average CPM/CPC Reduction
Clients consistently save nearly half their media buying costs compared to traditional direct-buy models.
3.2x
Conversion Rate Improvement
Our AI bidding models target higher-intent users, significantly improving CVR across all campaign types.
50ms
Bid Response Latency Cap
Industry-leading response speed ensures competitive advantage in every single auction we enter.
99.9%
Platform Uptime SLA
Multi-region failover architecture keeps your campaigns running around the clock without interruption.

Technology Innovation Driving the Future of Advertising

Longsen was founded by an elite team with deep roots in programmatic advertising and quantitative technology. Our core members come from leading ad tech companies and major internet platforms.

We believe that true advertising efficiency comes from deep technological investment. Through our proprietary RTB engine, AI bidding algorithms, and data intelligence platform, we've helped leading brands gain decisive competitive advantages in digital advertising.

Headquartered in Hong Kong and actively expanding across Southeast Asia, we bring global reach with local market expertise to every client engagement.

Hong Kong Compliant
IAB Certified Member
ISO 27001 Security
2018
Year Founded
50+
R&D Engineers
15+
Markets Covered
HK
Headquarters

Ready to Unlock Your Campaign's Full Potential?

Talk to our expert team and get a custom programmatic strategy built around your business goals.

Contact Our Team