AB Infrabuild
A B Infrabuild Limited is a Mumbai-headquartered Indian EPC contractor that builds Road Over Bridges, Foot Over Bridges, highways, and bridges for government clients including Indian Railways divisions, NHAI, and state road development corporations, using box-pushing technique and an in-house Thane RMC plant.
- Company typePublic
- Founded1999
- HeadquartersMumbai, India
- Headcount51–100
- GTM typeB2B
- OfferingServices
What AB Infrabuild does
A B Infrabuild Limited (formerly A B Enterprises, founded 1999 by Amit Bholananth Mishra and listed on NSE/BSE in 2019 under the ticker ABINFRA) is an India-based civil construction EPC contractor headquartered in Goregaon West, Mumbai, executing railway infrastructure, highway, and bridge construction projects. Its core offerings comprise the design and construction of Road Over Bridges (ROBs), Foot Over Bridges (FOBs), level-crossing eliminations, station platforms and buildings for Indian Railways and its divisions (East Coast, Western, Central, North Central) plus DFCCIL and MRVC; highway and VUP construction for the National Highways Authority of India and state road development corporations; and urban works for MCGM and MMRDA. The company holds a Grade AA contractor registration with the Municipal Corporation of Greater Mumbai and Class 1(A) classification with the Public Works Department of Maharashtra — the highest tiers in each — and operates its own state-of-the-art Ready Mix Concrete plant in Thane with 22 transit mixers, providing in-house concrete supply for its projects.
Technically, the firm's differentiator is its execution capability under live operational constraints rather than any software or platform: a box-pushing technique enables construction beneath active railway tracks without interrupting rail traffic, complementing a broader portfolio that spans beam, cantilever, arch, suspension, cable-stayed and truss bridges. The firm holds ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007 certifications issued via KVQA. Reported recent contract wins include a Rs. 100.22 crore Central Railway island platform and skywalk project, a Rs. 62.94 crore NHAI NH-16 VUP project in Odisha, multiple East Coast Railway ROB contracts between Rs. 42 crore and Rs. 67 crore each, and a Rs. 10.75 crore MP Road Development Corporation NH-30 lane-addition contract.
The revenue model is project-based EPC contracting secured through competitive bidding on government procurement portals; contract values span roughly Rs. 10.75 crore to Rs. 100.22 crore per award, with revenue recognized over multi-year execution horizons. The customer base is entirely public-sector: Indian Railways divisions, NHAI, DFCCIL, MRVC, state road development corporations and Mumbai's MCGM and MMRDA. The company has no disclosed subsidiaries, no institutional private-equity ownership, and a 69.1% retail shareholder base as of the September 2025 quarter; the shares are classified as a penny stock and underwent a face-value stock split with ex-date 17 October 2025.
AB Infrabuild firmographics
Firmographics- Name
- AB Infrabuild
- Legal name
- A B Infrabuild Limited
- Website
- https://abinfrabuild.com
- Company type
- Public
- Founded year
- 1999
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- A B Infrabuild Limited is a Mumbai-headquartered Indian EPC contractor that builds Road Over Bridges, Foot Over Bridges, highways, and bridges for government clients including Indian Railways divisions, NHAI, and state road development corporations, using box-pushing technique and an in-house Thane RMC plant.
- Ownership category
- akta.pro rank
AB Infrabuild industry classification
Industry- Product category
- Civil Infrastructure Construction
- NAICS
- Heavy and Civil Engineering Construction (237), Highway, Street, and Bridge Construction (237310)
- SIC
- Heavy Construction Other Than Bldg Const - Contractors (1600)
- akta.pro primary industry
- Design-Build / EPC General Contracting (IMAFAAAD)
- akta.pro secondary industry
- Interchanges, Ramps & Flyovers Construction (IMAFAEAD)
Keywords
Where AB Infrabuild is headquartered
LocationHeadquarters
- HQ city
- Mumbai
- HQ country
- India
- HQ region
- Asia
Offices1 record
Markets served
AB Infrabuild business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Others
Revenue model
- Infrastructure Construction Contracts: The company generates revenue through Engineering, Procurement and Construction (EPC) contracts for infrastructure projects including railway infrastructure (ROB, FOB, level crossing eliminations), road construction (highways, NH-16 projects), and bridge construction. Revenue is project-based and derived from government contracts awarded through competitive bidding processes.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based EPC (Engineering, Procurement and Construction) contracts |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
AB Infrabuild product offering
Product offeringCore offering
AB Infrabuild is a civil construction contractor that delivers infrastructure projects on an Engineering, Procurement and Construction (EPC) basis for government clients. Its work spans railway infrastructure (Road Over Bridges, Foot Over Bridges, station platforms, level crossing eliminations), road and highway construction, and multi-type bridge construction. The company also operates a state-of-the-art Ready Mix Concrete (RMC) plant in Thane with 22 transit mixers that supplies concrete for its projects.
Product overview
A B Infrabuild Limited is a civil construction infrastructure company offering a portfolio of services centered around railway infrastructure (Road Over Bridges, Foot Over Bridges, platforms, station buildings), road/highway construction (EPC mode), and bridge construction across multiple bridge types. The company operates a state-of-the-art Ready Mix Concrete (RMC) Plant in Thane as a complementary manufacturing capability. The core offering is Infrastructure Development Services, supplemented by specialized Railway Infrastructure Projects, Bridge Construction Services, Road Construction Services, and an RMC Plant for internal and external concrete supply.
Differentiator
Problem solved
Functional benefit
Products and services
- Infrastructure Development Services
Quantifiable outcome
- 3600% stock returns since 2019 listing demonstrating strong financial performance and shareholder value creation
- +2 more outcomes
Companies that use AB Infrabuild
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles3 records
AB Infrabuild technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
AB Infrabuild partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Evia Information Systems Pvt LtdminorWebsite design and development partner for abinfrabuild.com corporate website
Scale indicators7 records
Recent moves8 records
Expansion highlights4 records
AB Infrabuild competitors and assessment
Company assessmentDirect peers
- Patel Engineering: Indian infrastructure company involved in dams, tunnels, hydropower, irrigation and urban infrastructure. Comparable in the dam/canal and heavy civil infrastructure space mentioned in AB Infrabuild's scope.
- Ashoka Buildcon: Listed Indian EPC contractor specializing in highways, bridges and power transmission. Direct peer for road and bridge construction with NHAI and state road authorities through EPC and BOT models.
- Sadbhav Engineering: Indian infrastructure EPC company focused on roads, highways, railways and irrigation. Closely comparable business model — government contract bidding, EPC execution, and similar mid-cap scale positioning.
- KNR Constructions: Indian infrastructure EPC firm focused on highways, irrigation and urban infrastructure. Direct peer in road/highway construction with similar reliance on NHAI and state government contracts.
- H.G. Infra Engineering: Indian road and highway EPC contractor listed on NSE/BSE. Comparable to AB Infrabuild's road construction business with similar government client concentration and EPC contract model.
- Oriental Structural Engineers: Indian infrastructure EPC firm focused on highways, bridges, flyovers and metro construction. Direct comparable for AB Infrabuild's bridge, ROB and road construction business with government clients.
- Dilip Buildcon: Indian highway and infrastructure EPC major focused on road construction for NHAI/state PWDs. Closely comparable to AB Infrabuild's road construction segment, with similar project-based revenue model from government clients.
- NCC Limited: One of India's largest listed EPC contractors in roads, railways, buildings and water. Directly comparable as a publicly listed Indian infrastructure EPC firm securing government contracts via competitive bidding, though at significantly larger scale.
Broad incumbents
- GMR Group: Large Indian infrastructure conglomerate with airports, highways, energy and urban infrastructure divisions. Comparable in highway EPC and urban infrastructure segments served by NHAI/government clients, though at conglomerate scale.
- IRB Infrastructure Developers: One of India's largest listed road and highway developers with extensive BOT/toll portfolio. Comparable in NHAI-focused highway segment but at significantly larger scale and via toll-based BOT model rather than pure EPC.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
AB Infrabuild compliance and trust
Trust signalCompliance3 records
AB Infrabuild financial estimates
Financial estimateRevenue estimate
Valuation estimate
AB Infrabuild leadership team
Management profileNumber of profiles
Profiles3 records
AB Infrabuild funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
AB Infrabuild M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about AB Infrabuild
What does AB Infrabuild do?
AB Infrabuild is a civil construction contractor that delivers infrastructure projects on an Engineering, Procurement and Construction (EPC) basis for government clients. Its work spans railway infrastructure (Road Over Bridges, Foot Over Bridges, station platforms, level crossing eliminations), road and highway construction, and multi-type bridge construction. The company also operates a state-of-the-art Ready Mix Concrete (RMC) plant in Thane with 22 transit mixers that supplies concrete for its projects.
Is AB Infrabuild a public or private company?
AB Infrabuild is a public company. It is classified as public and is currently operating.
When was AB Infrabuild founded?
AB Infrabuild was founded in 1999. It employs 51 to 100 people.
Where is AB Infrabuild based?
AB Infrabuild is headquartered in Mumbai, India, in the Asia region.
How does AB Infrabuild make money?
One revenue line is on record: infrastructure Construction Contracts.
Who are AB Infrabuild's main competitors?
Direct peers on record are Patel Engineering, Ashoka Buildcon, Sadbhav Engineering, KNR Constructions, H.G. Infra Engineering, Oriental Structural Engineers, Dilip Buildcon and NCC Limited. Broad incumbents are GMR Group and IRB Infrastructure Developers.
Does AB Infrabuild have an API?
No public API is recorded for AB Infrabuild.
What industry is AB Infrabuild in?
AB Infrabuild's product category is Civil Infrastructure Construction. Its primary akta.pro industry code is IMAFAAAD, Design-Build / EPC General Contracting, with a secondary code of IMAFAEAD, Interchanges, Ramps & Flyovers Construction. Its NAICS code is 237 and its SIC code is 1600.