You can find many people and firms who interface with twitter here.
@delabs/embedded - Embedded System Development, Microcontroller, CPU, SBC, ARM.
@delabs/eda-asic - EDA, ASIC, FPGA, CPLD, IP Cores, Simulation, Foundry and SoC.
Jason McDonald - eg3 - Embedded Systems - Articles on embedded systems - eg3.com. Also about new products, interviews, research notes, and conferences; in embedded systems, rtos and dsp. eg3com Twitter
Embedded System Engineering - Andreas Kaiser - Embedded systems engineer and blogger. -Andreas Tweeter
Cool Verification - Hardware verification EDA - "Thoughts on hardware verification, the EDA industry, and related topics from the perspective of JL Gray, a verification consultant at Verilab." JL Gray - Twitter
GateRocket - Verification and Debug - FPGA - "GateRocket offers the industry's first Device Native verification solution that enable companies to verify and debug their FPGA designs faster and with higher quality." RocketBlog - RocketTweet
Functional verification at Brian Bailey Consulting - ESL and Verification guru - Business assessment and analysis, Competitive analysis and related Services. Brian's Tweets
the ASIC guy - Harry Gries - ASIC Methodology and EDA Harry Gries - ASIC Methodology and EDA Technology Consultant. Harry's Tweeter
Altera - FPGA CPLD and ASIC semiconductors Altera is one of the pioneers of Programmable Logic, following notable early leaders Signetics and MMI in introducing PLDs. Interface with Twitter - @alteracorp - FPGA, CPLD and ASIC semiconductor devices.
Dave Rich is Verification Technologist at Mentor Graphics and is one of the authors of Mentor's Advanced Verification Methodology cookbook. Dave Rich at San Francisco Bay Area from Verification Horizons BLOG at Mentor Graphics. Bio Verification Technologist, Verilog/SystemVerilog. Twitter Interface - @Dave Rich