GitDealFlowsignals

Q3 2026 · Series A / Series B · Deceleration

Series A / Series B Startups Showing Deceleration

49 series a / series b-stage startups currently classify under the deceleration signal in Q3 2026. Zipstack (Data Infrastructure) leads with 13 commits over 14 days (-7%). Startups whose 14-day commit velocity fell versus the prior window, a measurable slowdown that can mean a shipped milestone, a team transition, or a strategic pivot.

Deceleration signal data last verified:

Investor insight

At Series A/B, engineering acceleration is a trajectory signal rather than a discovery signal. A hiring burst or platform buildout often precedes the next round. Institutional investors use these signals to prioritize outreach and refine conviction before a lead term sheet. Deceleration is not automatically a red flag. A team that just shipped a major release often slows down to regroup. Read it alongside contributor growth and new repositories: falling velocity with stable or rising contributors usually means a finished push, while falling velocity and falling contributors together can flag turnover or a stalled roadmap.

Which sectors do these deceleration startups span?

Which series a / series b-stage startups are showing deceleration in Q3 2026?

#CompanyStageCommits (14d)ChangeContributorsSignal
1Zipstack

Zipstack is adata infrastructure series a/b startup, modernizing their technology stack for scale.

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Series A/B13-7%30Deceleration
2gosqasorg

Global Open Source Quality Assurance System

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Series A/B16-11%24Deceleration
3langchain-ai

langchain ai is aenterprise saas series a/b startup based in US, modernizing their technology stack for scale.

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Series A/B59-11%467Deceleration
4classroomio

The Open Source Customer/Employee Training Software

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Series A/B45-12%30Deceleration
5SFDigitalServices

San Francisco’s Digital Services Team is committed to transforming the public experience of City services.

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Series A/B20-13%35Deceleration
6calagopus

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Series A/B60-13%26Deceleration
7qualcomm

At Qualcomm Technologies, Inc., we transform how the world connects, computes and communicates.

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Series A/B40-15%39Deceleration
8TheXTech

International community of TheXTech project developers, part of WohlSoft Team

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Series A/B34-21%33Deceleration
9DSACMS

Digital Service at CMS

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Series A/B30-23%31Deceleration
10aureuserp

The powerful Open Source ERP platform built on Laravel to optimize and streamline your business operations.

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Series A/B44-23%20Deceleration
11DoliCloud

DoliCloud, is the 1st SaaS provider of Dolibarr ERP CRM

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Series A/B9-31%22Deceleration
12horilla

horilla is ahr tech series a/b startup, modernizing their technology stack for scale.

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Series A/B4-33%47Deceleration
13bloom-housing

A framework for modern software to power affordable housing.

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Series A/B11-35%40Deceleration
14canton-network

canton network is aweb3 series a/b startup, modernizing their technology stack for scale.

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Series A/B51-36%43Deceleration
15estuary

estuary is adata infrastructure series a/b startup, modernizing their technology stack for scale.

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Series A/B38-36%37Deceleration
16Point72

Point72 is adata infrastructure series a/b startup based in US, rapidly expanding their engineering team.

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Series A/B3-40%22Deceleration
17bitcoin-dev-project

100% free and open-source resources for bitcoin devs. bitcoin + FOSS = ₿OSS

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Series A/B7-42%26Deceleration
18drt-hub

drt hub is adata infrastructure series a/b startup based in APAC, modernizing their technology stack for scale.

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Series A/B28-42%30Deceleration
19BuilderIO

Visual development platform enabling teams to build and optimize digital experiences with a headless CMS and drag-and-drop editor.

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Series A/B294-45%40Deceleration
20pluginsGLPI

Official GLPI Project Plugins organization

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Series A/B2-50%30Deceleration
21tuva-health

The community building the future of healthcare analytics

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Series A/B1-50%48Deceleration
22ryzom

Ryzom Core is the open-source project related to Ryzom Game. Managed by the Ryzom Core community. Visit https://gitlab.c

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Series A/B219-52%30Deceleration
23medulla-tech

Endpoint management solution

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Series A/B4-56%26Deceleration
24solana-foundation

Solana Foundation is a non-profit organization dedicated to the decentralization, resilience, and security of the Solana

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Series A/B3-57%39Deceleration
25rocketride-org

rocketride org is adata infrastructure series a/b startup based in US, modernizing their technology stack for scale.

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Series A/B28-57%45Deceleration
26copper-project

Home for copper-rs, the deterministic robot OS built in Rust.

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Series A/B16-57%34Deceleration
27samply

samply is ahealthcare series a/b startup, rapidly expanding their engineering team.

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Series A/B21-58%20Deceleration
28paradigmxyz

A research-driven technology investment firm.

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Series A/B61-58%29Deceleration
297-Blocks

We Make Software That Solves Pain‎ ‎‎Points

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Series A/B27-59%33Deceleration
30alloy-rs

Alloy implements high-performance, well-tested & documented libraries for interacting with Ethereum and other EVM-based

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Series A/B3-62%32Deceleration
31etewiah

A curated list of awesome real estate related resources and projects

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Series A/B1-67%24Deceleration
32gardener

Universal Kubernetes at Scale

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Series A/B3-70%33Deceleration
33opensensorhub

Java-based middleware for building better Sensor Webs and the Internet of Things

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Series A/B3-70%22Deceleration
34fedbiomed

Collaborative learning in heathcare

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Series A/B4-73%23Deceleration
35ai-shifu

ai shifu is aedtech series a/b startup based in APAC, modernizing their technology stack for scale.

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Series A/B33-74%21Deceleration
36opensource-socialnetwork

Social Networking CMS written in php similar to facebook

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Series A/B3-77%23Deceleration
37Official-MoonDao

MoonDAO is accelerating our multiplanetary future with an open platform to fund, collaborate, and compete on challenges

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Series A/B22-79%30Deceleration
38spectrocloud

Enterprise Kubernetes Management at Scale

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Series A/B1-80%38Deceleration
39PhotoFlare

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Series A/B5-80%21Deceleration
40masslight

masslight is ahealthcare series a/b startup, modernizing their technology stack for scale.

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Series A/B53-83%28Deceleration
41KyrptonaughtMC

Inventory Sorter for Minecraft

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Series A/B2-83%24Deceleration
42ar-io

All source code for ar.io; the global network, protocol, and currency that enables the permaweb.

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Series A/B12-83%25Deceleration
43subsquid

Blockchain data infrastructure for Web3 developers: validated data across 225+ networks plus the Squid SDK and Pipes SDK

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Series A/B11-83%40Deceleration
44nasa-jpl

A world leader in the robotic exploration of space

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Series A/B9-85%26Deceleration
45haxtheweb

Tools

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Series A/B5-90%42Deceleration
46Official-MoonDao

MoonDAO is accelerating our multiplanetary future with an open platform to fund, collaborate, and compete on challenges

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Series A/B8-91%30Deceleration
47goodrain

Rainbond is Cloud Native apps manage platform, Make apps manage and apps delivery easier. Rainbond is open source produc

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Series A/B2-92%20Deceleration
48Open-Cap-Table-Coalition

Open Cap Table Coalition is alegal tech series a/b startup, rapidly expanding their engineering team.

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Series A/B1-92%20Deceleration
49learnhouse

The modern Open source learning platform for everyone.

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Series A/B5-93%35Deceleration
Powered by VC Deal Flow Signal , real-time GitHub engineering data for investorsData from public GitHub API

Sorted by commit velocity change (14-day window). Last updated Q3 2026.

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Frequently Asked Questions

Which series a / series b-stage startups are showing deceleration in Q3 2026?

49 series a / series b-stage startups currently classify under the deceleration signal in Q3 2026. Zipstack (Data Infrastructure) leads with 13 commits over 14 days (-7% change) and 30 active contributors.

What does deceleration mean at series a / series b stage?

Startups whose 14-day commit velocity fell versus the prior window, a measurable slowdown that can mean a shipped milestone, a team transition, or a strategic pivot. Deceleration is not automatically a red flag. A team that just shipped a major release often slows down to regroup. Read it alongside contributor growth and new repositories: falling velocity with stable or rising contributors usually means a finished push, while falling velocity and falling contributors together can flag turnover or a stalled roadmap.

Why is series a / series b the right stage to watch for this signal?

At Series A/B, engineering acceleration is a trajectory signal rather than a discovery signal. A hiring burst or platform buildout often precedes the next round. Institutional investors use these signals to prioritize outreach and refine conviction before a lead term sheet.

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