Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials

Funding and backers

Team
11-50
employees, estimated range
Hiring now
1
open roles
Backers
1
Y Combinator
Momentum
0/100
no fresh signals
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jan 2024 Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 7%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
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Overview

OpenCall is a San Francisco startup that builds AI voice agents which conduct telephone conversations on behalf of businesses. Its platform automates inbound and outbound calls such as lead qualification, appointment setting and customer support, and hands complex cases over to human staff. The company is headquartered in San Francisco, California, United States.

News

News YahooFinance 3 years ago
OpenCall Capital Launches Decentralized Tokenized Asset Investment Platform Powered by Advanced AI Algorithms
OpenCall Capital, a pioneering investment firm, has announced the launch of its state-of-the-art decentralized investment platform specializing in tokenized value assets. The platform offers investors the most diversified asset classes and is driven by ad
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Report
News marketingdive.com 5 years ago
HP upgrades OpenCall for personalized, interactive multimedia Marketing Dive
Marketing news, voices and jobs for industry professionals. Optimized for your mobile phone.
Read more
Report
Press release Prague Monitor 12 years ago
OpenCall Has Lowered The Prices Of Data Packages, Calls And Messaging Inside The Network By 34%
Prague, 19 September 2014 - With the approaching autumn, virtual operator OpenCall mobile is rewarding its customers with pleasant lowering of prices of data
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Report
Press release Prague Monitor 13 years ago
Getting Hot On The Prepaid Mobile Market As DH Telecom Announces That OPENCALL Is Getting Ready To Launch!
Prague, 26.06.2013 (Press Release): Today, DH Telecom announced the starting phase of the launch of its new and upgraded
Read more
Report
News SCMPNews 25 years ago
Opencall to be sold direct to large firms
Hewlett-Packard will sell its market-leading Opencall communications middleware directly to large enterprises in a move to boost growth in its software business.
Read more
Report

Tech stack

Technologies named in job postings at OpenCall over the last 12 months, by layer, with the share of postings for each.
Technologies in use
14
Postings analysed
1
Stack modernity
71/100
Languages
Python
TypeScript
Frameworks & libraries
DSPy
Cloud & platforms
OpenAI
Twilio
Practices & domains
AI Agents
Human-in-the-Loop
LLM Evaluation
NLP
Prompt Engineering
Text-to-Speech
Voice Agents
Fine-tuning
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Salary insights

Compensation ranges based on this company's open jobs
Median
$145k
Typical range
$145k
Open positions
1
1 Jobs
Junior 100%
Level Jobs Median Typical range
Junior 1 $145k $145k
Highest paying role AI Prompt & Agent Developer $145k
Normalized to USD per year

Growth

Hiring Momentum
48/100
Stable
Open positions
1
0 opened / 0 closed in 30 days
Median time-to-fill
311 days
faster than 7% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics +100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
100% ▼
Activity Timeline
Added Voice Agents to stack Sep 2026
Added Speech Recognition to stack Aug 2026

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
San Francisco
San Francisco United States
HQ
1 open roles 1 posted in 90 days 100% engineering 10-50 est. staff $145k Avg Salary
hires for AI/ML
seen since Oct 2025 company site

Jobs

$90k – $145k per year • Equity 0.1–0.3% • In office • Full-Time • 1+ year exp • Bachelor's Degree • San Francisco
Python
TypeScript
DSPy
Fine-tuning
Prompt Engineering
AI Agents
NLP
Speech Recognition
OpenAI
Text-to-Speech
Human-in-the-Loop
LLM Evaluation
Voice Agents
Mobile
Twilio
Apply